{"title":"Riga Accessories","description":"","products":[{"product_id":"riga-automatic-window-opener","title":"Riga Automatic Window Opener","description":"\u003ch2\u003e\u003cstrong\u003eRiga Automatic Window Opener\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga Automatic Window Opener\u003c\/strong\u003e is a replacement or additional wax-cylinder roof vent opener compatible with all Riga greenhouse models. It requires no electricity and no manual adjustment — the paraffin oil inside the cylinder expands as the greenhouse interior warms, automatically pushing the roof window open to ventilate. When the temperature drops, the cylinder contracts and the window closes. Add one to replace a failed opener, or add a second opener to a roof window for increased opening force.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eParaffin (wax) cylinder mechanism — no electricity required\u003c\/li\u003e\n\u003cli\u003eOpens automatically starting at approximately 72°F (22°C)\u003c\/li\u003e\n\u003cli\u003eQuick-release arm — allows the opener to be disconnected from the window in adverse weather conditions (heavy snow, high winds) to prevent damage\u003c\/li\u003e\n\u003cli\u003eCompatible with all Riga greenhouse roof vents\u003c\/li\u003e\n\u003cli\u003eReplacement or additional unit — use to replace a failed opener or add a second opener to a single roof window\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanism\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eParaffin (wax) oil cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOpening Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 72°F (22°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone — fully automatic, temperature-driven\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuick-Release Arm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes — allows disconnection in adverse weather\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll Riga greenhouse roof vents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-AUTO-OPENER\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$119 per unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Automatic Opener Works\u003c\/h3\u003e\n\u003cp\u003eThe opener uses a sealed cylinder filled with paraffin (wax) oil. As the greenhouse interior temperature rises above approximately 72°F, the paraffin expands and pushes a piston outward, which in turn pushes the roof window open. As the temperature drops below the threshold, the paraffin contracts, the piston retracts, and the window closes under its own weight. The cycle repeats automatically throughout the day with no user intervention required.\u003c\/p\u003e\n\u003cp\u003eThe quick-release arm allows you to manually disconnect the opener from the window frame — useful in heavy snow conditions (to prevent the opener from being damaged by snow weight on the window) or when you want to keep the window closed during cold snaps without removing the opener entirely.\u003c\/p\u003e\n\n\u003ch3\u003eWhen to Add or Replace an Automatic Opener\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSituation\u003c\/th\u003e\n\u003cth\u003eRecommendation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOriginal opener has failed or no longer opens fully\u003c\/td\u003e\n\u003ctd\u003eReplace with this unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoof window is heavy and opener doesn’t open it wide enough\u003c\/td\u003e\n\u003ctd\u003eAdd a second opener alongside the existing one\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdding a roof window that didn’t come with an opener\u003c\/td\u003e\n\u003ctd\u003eAdd this unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpgrading from manual to automatic ventilation\u003c\/td\u003e\n\u003ctd\u003eAdd this unit to any compatible Riga roof vent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRiga Greenhouse Roof Window Count by Model\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRoof Windows (standard)\u003c\/th\u003e\n\u003cth\u003eAuto Openers Included\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IVs\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga V\u003c\/td\u003e\n\u003ctd\u003e2+\u003c\/td\u003e\n\u003ctd\u003e2+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 6\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 9\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eEach Riga greenhouse ships with one automatic opener per roof window. This product allows you to replace a failed opener or add a second opener to any roof window for increased opening force.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this opener work with all Riga greenhouse models?\u003c\/strong\u003e\u003cbr\u003eYes — the Riga Automatic Window Opener is compatible with all Riga greenhouse roof vents, including the IIs, IIIs, III, IVs, IV, V, XL 6, and XL 9.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAt what temperature does the opener activate?\u003c\/strong\u003e\u003cbr\u003eThe opener begins to open at approximately 72°F (22°C). The opening force increases as the temperature rises further above this threshold. The exact opening angle depends on the interior temperature and the weight of the roof window.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the quick-release arm for?\u003c\/strong\u003e\u003cbr\u003eThe quick-release arm allows you to disconnect the opener from the roof window without removing the opener from the greenhouse frame. This is useful in heavy snow conditions — disconnecting the opener prevents it from being damaged if snow weight pushes the window down against the opener’s resistance. It also allows you to keep the window closed during cold snaps without disabling the opener permanently.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I add a second opener to the same roof window?\u003c\/strong\u003e\u003cbr\u003eYes — if your roof window is heavy or if the single opener doesn’t open the window wide enough, you can add a second opener alongside the existing one. Two openers working together provide greater opening force and a wider opening angle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMy opener no longer opens the window fully — does it need to be replaced?\u003c\/strong\u003e\u003cbr\u003eWax cylinder openers can lose effectiveness over time as the paraffin degrades or the seals wear. If your opener no longer opens the window to its previous angle at the same temperatures, replacement is recommended. This unit is a direct replacement for the original Riga automatic opener.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517636935966,"sku":"RIGA-AUTO-OPENER","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/riga_ventilation.jpg?v=1782510512"},{"product_id":"top-shelf-for-riga-iv-10-wide-x-1310-long","title":"Top Shelf for Riga IV: 10\" wide x 13'10\" long","description":"\u003ch2\u003e\u003cstrong\u003eTop Shelf for Riga IV Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga IV Top Shelf\u003c\/strong\u003e is a purpose-built upper-tier polycarbonate shelving unit for the Riga IV greenhouse. Narrower and higher than the bottom shelf, it is designed for smaller plants, seedling trays, and propagation work at eye level — with polycarbonate inserts that allow light to pass through to the plants and shelves below. Each unit covers one side of the greenhouse.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTwin-wall polycarbonate shelf surface with polycarbonate inserts — maximizes light transmission to plants below\u003c\/li\u003e\n\u003cli\u003e10\" deep × 13'10\" long — sized for the full interior length of the Riga IV\u003c\/li\u003e\n\u003cli\u003eSuspended shelving — positioned high in the greenhouse for seedlings, small pots, and propagation trays\u003c\/li\u003e\n\u003cli\u003eEach unit covers one side of the greenhouse — order two for full double-sided top shelving\u003c\/li\u003e\n\u003cli\u003ePurpose-built for the Riga IV — engineered to fit the Riga IV frame exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13 feet 10 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Position\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop \/ upper tier (suspended high)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwin-wall polycarbonate with polycarbonate inserts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Transmission\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes — polycarbonate inserts allow light through to plants below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne side of the greenhouse per unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-IV-TOP-SHELF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$439 per unit (one side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTop Shelf vs. Bottom Shelf — How They Work Together\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eTop Shelf (this product)\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/bottom-shelf-for-riga-iv-25-w-x-1310-long\"\u003eBottom Shelf\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 inches\u003c\/td\u003e\n\u003ctd\u003e25 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13'10\"\u003c\/td\u003e\n\u003ctd\u003e13'10\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUpper tier — suspended high\u003c\/td\u003e\n\u003ctd\u003eRegular height — suspended with braces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Transmission\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes — polycarbonate inserts\u003c\/td\u003e\n\u003ctd\u003eStandard polycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBest For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSeedlings, small pots, propagation trays\u003c\/td\u003e\n\u003ctd\u003eLarger plants, staging, storage underneath\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice (per side)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$439\u003c\/td\u003e\n\u003ctd\u003e$624\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eMany Riga IV growers use both tiers together: the bottom shelf for larger plants and staging, and the top shelf for seedlings and propagation at eye level. Full two-tier shelving on one side of the Riga IV costs $439 + $624 = $1,063 per side, or $2,126 for both sides.\u003c\/p\u003e\n\n\u003ch3\u003eRiga Top Shelf Series — Which Top Shelf Do You Need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTop Shelf Length\u003c\/th\u003e\n\u003cth\u003ePrice (per side)\u003c\/th\u003e\n\u003cth\u003eFull Double-Sided\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/top-shelf-for-riga-iis-10-wide-x-7-long\"\u003e7'\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$319\u003c\/td\u003e\n\u003ctd\u003e$638\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/top-shelf-for-riga-iiis-10-wide-x-104-long\"\u003e10'4\"\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$379.99\u003c\/td\u003e\n\u003ctd\u003e$759.98\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/top-shelf-for-riga-iii-10-wide-x-104-long\"\u003e10'4\"\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$379.99\u003c\/td\u003e\n\u003ctd\u003e$759.98\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis shelf — 13'10\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$439\u003c\/td\u003e\n\u003ctd\u003e$878\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eAll Riga top shelves share the same 10\" depth and polycarbonate insert design. Length and price scale with each greenhouse’s interior length. Order the top shelf that matches your exact greenhouse model.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes one unit cover both sides of the Riga IV?\u003c\/strong\u003e\u003cbr\u003eNo — each unit covers one side of the greenhouse only. To add top shelving to both sides of your Riga IV, you will need to purchase two units ($439 × 2 = $878 for full double-sided top shelving).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs there a separate top shelf for the Riga IVs (smaller \"S\" variant)?\u003c\/strong\u003e\u003cbr\u003eThe Riga IVs may require a model-specific top shelf. Contact us with your exact model number to confirm the correct top shelf before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use the top shelf and bottom shelf together in the same Riga IV?\u003c\/strong\u003e\u003cbr\u003eYes — the Riga IV top and bottom shelves are designed to work together as a two-tier shelving system. The top shelf sits higher in the greenhouse for seedlings and small plants, while the bottom shelf provides a wider surface at regular working height with storage space underneath. The polycarbonate inserts in the top shelf allow light to reach the bottom shelf and floor below.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy does the top shelf have polycarbonate inserts?\u003c\/strong\u003e\u003cbr\u003eThe polycarbonate inserts allow natural light to pass through to the plants and shelves below. Without light-transmitting inserts, a solid upper shelf would cast shade on everything beneath it — reducing growing conditions on the bottom shelf and floor. The polycarbonate inserts maintain light levels throughout the greenhouse interior.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this shelf compatible with other Riga models?\u003c\/strong\u003e\u003cbr\u003eThis top shelf is engineered specifically for the Riga IV footprint (13'10\" interior length). Other Riga models have different interior lengths and require their own model-specific shelving. See the series table above for all available top shelf models.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe shelf ships free when ordered together with a Riga IV greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517640245534,"sku":"RIGA-IV-TOP-SHELF","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_3_interior_gardening.webp?v=1786483837"},{"product_id":"bottom-shelf-for-riga-iv-25-w-x-1310-long","title":"Bottom Shelf for Riga IV: 25\" w x 13'10\" long","description":"\u003ch2\u003e\u003cstrong\u003eBottom Shelf for Riga IV Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga IV Bottom Shelf\u003c\/strong\u003e is a purpose-built polycarbonate shelving unit for the Riga IV greenhouse. Suspended with braces at regular height to allow larger equipment, pots, or supplies to be stored underneath, each unit covers one side of the greenhouse. At 25\" deep × 13'10\" long, it is the longest shelf in the Riga bottom shelf series — providing a generous growing and staging surface along the full interior length of one side wall of the Riga IV.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTwin-wall polycarbonate shelf surface — durable, lightweight, and allows light transmission\u003c\/li\u003e\n\u003cli\u003eSuspended with braces at regular height — allows larger equipment, pots, or supplies to be stored underneath\u003c\/li\u003e\n\u003cli\u003e25\" deep × 13'10\" long — sized for the full interior length of the Riga IV\u003c\/li\u003e\n\u003cli\u003eEach unit covers one side of the greenhouse — order two for full double-sided shelving\u003c\/li\u003e\n\u003cli\u003ePurpose-built for the Riga IV — engineered to fit the Riga IV frame exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13 feet 10 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRegular height (suspended with braces)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwin-wall polycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne side of the greenhouse per unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-IV-BOTTOM-SHELF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$624 per unit (one side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRiga Bottom Shelf Series — Which Shelf Do You Need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eShelf Length\u003c\/th\u003e\n\u003cth\u003ePrice (per side)\u003c\/th\u003e\n\u003cth\u003eFull Double-Sided\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/bottom-shelf-for-riga-iis-25-w-x-7-long\"\u003e7'\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$399\u003c\/td\u003e\n\u003ctd\u003e$798\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/bottom-shelf-for-riga-iiis-25-w-x-104-long\"\u003e10'4\"\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$499\u003c\/td\u003e\n\u003ctd\u003e$998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/bottom-shelf-for-riga-iii-25-w-x-104-long\"\u003e10'4\"\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$499\u003c\/td\u003e\n\u003ctd\u003e$998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis shelf — 13'10\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$624\u003c\/td\u003e\n\u003ctd\u003e$1,248\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eAll Riga bottom shelves share the same 25\" depth and suspended brace design. Length and price scale with each greenhouse’s interior length. Order the shelf that matches your exact greenhouse model.\u003c\/p\u003e\n\n\u003ch3\u003eHow the Suspended Shelf Design Works\u003c\/h3\u003e\n\u003cp\u003eUnlike floor-standing shelving, the Riga bottom shelf is suspended from the greenhouse frame with braces at a regular working height. This creates usable storage space underneath the shelf — ideal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge pots, planters, and grow bags that are too tall for a standard shelf\u003c\/li\u003e\n\u003cli\u003eWatering cans, fertilizer bags, and bulk supplies\u003c\/li\u003e\n\u003cli\u003ePropagation equipment, heating mats, and trays stored at floor level\u003c\/li\u003e\n\u003cli\u003eWheelbarrows and garden carts that need to slide under during use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes one unit cover both sides of the Riga IV?\u003c\/strong\u003e\u003cbr\u003eNo — each unit covers one side of the greenhouse only. To shelf both sides of your Riga IV, you will need to purchase two units ($624 × 2 = $1,248 for full double-sided shelving).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs there a separate shelf for the Riga IVs (smaller \"S\" variant)?\u003c\/strong\u003e\u003cbr\u003eThe Riga IVs is the shorter length variant of the Riga IV series and may require a different shelf length. Contact us with your exact model number to confirm the correct shelf before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this shelf compatible with other Riga models?\u003c\/strong\u003e\u003cbr\u003eThis shelf is engineered specifically for the Riga IV footprint (13'10\" interior length). Other Riga models have different interior lengths and require their own model-specific shelving. See the series table above for other available shelf models.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is the Riga IV shelf longer and more expensive than the IIIs and III shelves?\u003c\/strong\u003e\u003cbr\u003eThe Riga IV has a longer interior than the IIIs and III models. The bottom shelf is sized to match each greenhouse’s interior length — the IV shelf at 13'10\" is 3'6\" longer than the 10'4\" IIIs\/III shelves, which accounts for the higher price ($624 vs. $499).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is the shelf made from twin-wall polycarbonate?\u003c\/strong\u003e\u003cbr\u003eTwin-wall polycarbonate is the ideal greenhouse shelf material — lightweight, durable, moisture-resistant, and allows light to pass through to plants below. Unlike solid wood or metal shelving, polycarbonate won’t rot, rust, or block light in a humid greenhouse environment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I add shelving after I’ve already assembled my Riga IV?\u003c\/strong\u003e\u003cbr\u003eYes — the Riga IV bottom shelf can be added to an existing assembled greenhouse. It attaches to the Riga frame using the built-in brace system. Contact us for installation guidance if you are adding shelving post-assembly.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517641687326,"sku":"RIGA-IV-BOTTOM-SHELF","price":624.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/RIgatopandbottomSHelf.webp?v=1786482314"},{"product_id":"bottom-shelf-for-riga-iis-25-w-x-7-long","title":"Bottom Shelf for Riga 2s: 25\" w x 7' long","description":"\u003cp\u003eThe Riga 2s (IIs) Bottom Shelf is a purpose-built polycarbonate shelving unit for the Riga IIs greenhouse — the smaller \"S\" variant of the Riga II series. Suspended with braces at regular height to allow larger equipment, pots, or supplies to be stored underneath, each unit covers one side of the greenhouse. At 25\" deep × 7' long, it is sized specifically for the shorter Riga IIs interior and is priced accordingly at $399 — $100 less than the longer IIIs and III shelf models.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTwin-wall polycarbonate shelf surface — durable, lightweight, and allows light transmission\u003c\/li\u003e\n\u003cli\u003eSuspended with braces at regular height — allows larger equipment, pots, or supplies to be stored underneath\u003c\/li\u003e\n\u003cli\u003e25\" deep × 7' long — sized for the Riga IIs interior length\u003c\/li\u003e\n\u003cli\u003eEach unit covers one side of the greenhouse — order two for full double-sided shelving\u003c\/li\u003e\n\u003cli\u003ePurpose-built for the Riga IIs — engineered to fit the Riga IIs frame exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7 feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRegular height (suspended with braces)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwin-wall polycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne side of the greenhouse per unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-IIS-BOTTOM-SHELF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$399 per unit (one side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eRiga Shelving Series — Which Shelf Do You Need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eShelf Length\u003c\/th\u003e\n\u003cth\u003ePrice (per side)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis shelf — 7'\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$399\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/bottom-shelf-for-riga-iiis-25-w-x-104-long\"\u003e10'4\"\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/bottom-shelf-for-riga-iii-25-w-x-104-long\"\u003e10'4\"\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAll Riga bottom shelves share the same 25\" depth and suspended brace design. The length and price vary by model to match each greenhouse’s interior length. Order the shelf that matches your exact greenhouse model.\u003c\/p\u003e\n\u003ch3\u003eHow the Suspended Shelf Design Works\u003c\/h3\u003e\n\u003cp\u003eUnlike floor-standing shelving, the Riga bottom shelf is suspended from the greenhouse frame with braces at a regular working height. This creates usable storage space underneath the shelf — ideal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge pots, planters, and grow bags that are too tall for a standard shelf\u003c\/li\u003e\n\u003cli\u003eWatering cans, fertilizer bags, and bulk supplies\u003c\/li\u003e\n\u003cli\u003ePropagation equipment, heating mats, and trays stored at floor level\u003c\/li\u003e\n\u003cli\u003eWheelbarrows and garden carts that need to slide under during use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes one unit cover both sides of the Riga IIs?\u003c\/strong\u003e\u003cbr\u003eNo — each unit covers one side of the greenhouse only. To shelf both sides of your Riga IIs, you will need to purchase two units ($399 × 2 = $798 for full double-sided shelving).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the Riga IIs shelf shorter and less expensive than the IIIs and III shelves?\u003c\/strong\u003e\u003cbr\u003eThe Riga IIs is the smallest model in the Riga series, with a shorter interior length than the IIIs and III. The bottom shelf is sized to match the interior length of each specific model — the IIs shelf at 7' is shorter and therefore less expensive ($399) than the 10'4\" shelves for the IIIs and III ($499 each).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this shelf compatible with other Riga models?\u003c\/strong\u003e\u003cbr\u003eThis shelf is engineered specifically for the Riga IIs. Other Riga models have different interior lengths and require their own model-specific shelving. Contact us to find the correct shelf for your specific Riga model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the shelf made from twin-wall polycarbonate?\u003c\/strong\u003e\u003cbr\u003eTwin-wall polycarbonate is the ideal greenhouse shelf material — lightweight, durable, moisture-resistant, and allows light to pass through to plants below. Unlike solid wood or metal shelving, polycarbonate won’t rot, rust, or block light in a humid greenhouse environment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe shelf ships free when ordered together with a Riga IIs greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I add shelving after I’ve already assembled my Riga IIs?\u003c\/strong\u003e\u003cbr\u003eYes — the Riga IIs bottom shelf can be added to an existing assembled greenhouse. It attaches to the Riga frame using the built-in brace system. Contact us for installation guidance if you are adding shelving post-assembly.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517641720094,"sku":"RIGA-IIS-BOTTOM-SHELF","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/RIgatopandbottomSHelf.webp?v=1786482314"},{"product_id":"riga-xl-assembly-facilitation-help-kit","title":"Riga XL Assembly Facilitation Help Kit","description":"\u003ch2\u003e\u003cstrong\u003eRiga XL Assembly Facilitation Kit\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga XL Assembly Facilitation Kit\u003c\/strong\u003e contains every specialized tool and supply needed to assemble your Riga XL greenhouse — sourced and bundled specifically for the Riga XL build process. Rather than sourcing each item individually, this kit gives you everything in one purchase so you can focus on the build, not the prep.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003cth\u003ePurpose\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetric tape measure (25')\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eLayout and alignment during assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10mm socket wrench\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eTightening Riga XL frame bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10mm open wrench\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eBacking bolts during tightening\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20' J-hook ratchet straps\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eSecuring frame sections during assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWindow restraint cables\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eSecuring roof windows during and after assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoss 399 silicone caulk\u003c\/td\u003e\n\u003ctd\u003e2 tubes\u003c\/td\u003e\n\u003ctd\u003eSealing joints and glazing for weatherproofing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermanent marker\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eMarking panels and components during assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll tools and supplies selected specifically for the Riga XL assembly process\u003c\/li\u003e\n\u003cli\u003eMetric tape and 10mm wrenches match the Riga XL’s metric hardware\u003c\/li\u003e\n\u003cli\u003eBoss 399 silicone caulk — the recommended sealant for Riga greenhouse joints and glazing\u003c\/li\u003e\n\u003cli\u003eJ-hook ratchet straps for safely securing large frame sections during the build\u003c\/li\u003e\n\u003cli\u003eWindow restraint cables included for roof window safety\u003c\/li\u003e\n\u003cli\u003eSaves time sourcing individual items — everything arrives together\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga XL greenhouse series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTape Measure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 feet, metric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10mm (socket and open)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRatchet Straps\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 × 20 feet, J-hook style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSealant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBoss 399 silicone caulk (2 tubes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-ASSEM-KIT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$199\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhy the Riga XL Uses Metric Hardware\u003c\/h3\u003e\n\u003cp\u003eThe Riga greenhouse series is designed and manufactured in Germany, where metric hardware is standard. The 10mm socket and open wrenches in this kit are sized specifically for the Riga XL’s bolts — standard imperial tool sets will not fit correctly. This is one of the most common assembly frustrations for first-time Riga builders who arrive without the correct metric tools.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this kit required to assemble the Riga XL?\u003c\/strong\u003e\u003cbr\u003eThe kit is not strictly required, but it contains tools and supplies that are specifically needed for the Riga XL build and are not always found in a standard toolbox. In particular, the metric tape measure, 10mm wrenches, Boss 399 silicone caulk, and window restraint cables are Riga-specific requirements. Purchasing this kit ensures you have everything on hand before assembly day.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy does the Riga XL require metric tools?\u003c\/strong\u003e\u003cbr\u003eThe Riga greenhouse series is manufactured in Germany using metric hardware. The bolts throughout the Riga XL frame are 10mm — standard imperial wrenches (3\/8\", 7\/16\") will not fit correctly and can strip the bolt heads. The 10mm socket and open wrenches in this kit are the correct tools for the job.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is Boss 399 silicone caulk used for?\u003c\/strong\u003e\u003cbr\u003eBoss 399 is the recommended sealant for Riga greenhouse assembly. It is used to seal the joints between polycarbonate panels and the aluminum frame, and around any penetrations, to create a weatherproof seal. Using the correct sealant is important — some silicone products can damage polycarbonate panels over time. Boss 399 is specifically formulated to be safe for use with polycarbonate glazing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat are the window restraint cables for?\u003c\/strong\u003e\u003cbr\u003eThe window restraint cables limit how far the Riga XL’s roof windows can open, preventing them from being forced fully open by wind gusts during and after assembly. They are a safety feature that protects both the windows and the automatic openers from wind damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this kit compatible with other Riga models besides the XL?\u003c\/strong\u003e\u003cbr\u003eThis kit is assembled specifically for the Riga XL. Other Riga models (III, IV, V) may use the same 10mm hardware and Boss 399 caulk, but the ratchet strap lengths and window restraint cables are sized for the XL’s larger footprint. Contact us if you need an assembly kit recommendation for a non-XL Riga model.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517642801438,"sku":"RIGA-ASSEM-KIT","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/RIGA_assembly_kit.webp?v=1785879921"},{"product_id":"riga-plastic-hooks","title":"Riga Plastic Hooks for Growing Wire \u0026 Rope (Set of 10)","description":"\u003ch2\u003e\u003cstrong\u003eRiga Plastic Hooks for Growing Wire \u0026amp; Rope – Set of 10\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga Plastic Hooks\u003c\/strong\u003e are purpose-built growing support accessories for Riga greenhouses, designed to install in the Riga frame channels and hold growing wire or rope for vining plants. Whether you’re training tomatoes, cucumbers, beans, or other climbers, these hooks give you a clean, adjustable wire or rope run along the length of your greenhouse without drilling or permanent fixtures. Each package includes 10 hooks.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls in Riga greenhouse frame channels — no drilling or hardware required\u003c\/li\u003e\n\u003cli\u003eDesigned to hold growing wire or rope for vining and climbing plants\u003c\/li\u003e\n\u003cli\u003eRepositionable — adjust hook placement along the channel as plants grow\u003c\/li\u003e\n\u003cli\u003eCompatible with all Riga greenhouse models that feature the frame channel system\u003c\/li\u003e\n\u003cli\u003eSet of 10 hooks per package\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 hooks per package\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInstalls in Riga frame channels — no drilling required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupporting growing wire or rope for vining plants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga greenhouse series (models with frame channel system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-PLASTIC-HOOKS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$38.99 (set of 10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePlastic Hooks vs. Metal Hooks — Which Do You Need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003ePlastic Hooks (this product)\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/riga-metal-hooks-set-of-5\"\u003eMetal Hooks\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupporting growing wire or rope for vining plants\u003c\/td\u003e\n\u003ctd\u003eHanging plants, fans, tools, lights, equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity per Package\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 hooks\u003c\/td\u003e\n\u003ctd\u003e5 hooks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$38.99\u003c\/td\u003e\n\u003ctd\u003e$38.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBest For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTomatoes, cucumbers, beans, vining crops\u003c\/td\u003e\n\u003ctd\u003eHanging baskets, fans, grow lights, tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eMany growers use both: plastic hooks to run growing wire along the frame for vining crops, and metal hooks to hang fans, baskets, and equipment. They work together in the same frame channel system.\u003c\/p\u003e\n\n\u003ch3\u003eHow to Set Up a Growing Wire System\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eInstall plastic hooks in the Riga frame channel at the desired height and spacing along the length of the greenhouse\u003c\/li\u003e\n\u003cli\u003eRun growing wire or twine through or over the hooks to create a horizontal support line\u003c\/li\u003e\n\u003cli\u003eTrain vining plants (tomatoes, cucumbers, beans) up vertical strings or clips attached to the horizontal wire\u003c\/li\u003e\n\u003cli\u003eReposition hooks as needed to adjust wire height as plants grow taller\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich Riga models are these hooks compatible with?\u003c\/strong\u003e\u003cbr\u003eThe plastic hooks are designed for Riga greenhouse models that feature the frame channel system, including the Riga IIs, IIIs, III, IVs, IV, V, and XL series. Contact us with your model number if you are unsure whether your greenhouse has the compatible channel.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the plastic hooks and the metal hooks?\u003c\/strong\u003e\u003cbr\u003eThe plastic hooks are specifically designed for running growing wire or rope to support vining plants — they hold a wire or twine line horizontally along the frame. The metal hooks are designed for hanging heavier items like plants in pots, fans, grow lights, and tools. Both install in the same Riga frame channel. Many growers use both types in the same greenhouse for different purposes.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat type of growing wire or rope works best with these hooks?\u003c\/strong\u003e\u003cbr\u003eStandard greenhouse growing wire, galvanized wire, or heavy-duty garden twine all work well with these hooks. For tomatoes and cucumbers, 14–16 gauge galvanized wire provides good support. For lighter crops like beans or peas, heavy-duty twine is sufficient.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow many hooks do I need for my Riga greenhouse?\u003c\/strong\u003e\u003cbr\u003eFor a single wire run along the full length of a Riga V (17'6\"), spacing hooks every 2–3 feet would require approximately 6–9 hooks per wire run. One package of 10 hooks is typically sufficient for one or two wire runs in most Riga models. For a fully equipped growing system with multiple wire heights and rows, 2–3 packages gives you maximum flexibility.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use these hooks with non-Riga greenhouses?\u003c\/strong\u003e\u003cbr\u003eThese hooks are designed for the specific channel profile of Riga greenhouse frames. They may not be compatible with other greenhouse brands that use different frame profiles. Contact us to verify compatibility with a specific non-Riga frame before ordering.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517643424030,"sku":"RIGA-PLASTIC-HOOKS","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_plastic_Hooks_1.1.webp?v=1786484375"},{"product_id":"riga-metal-hooks-set-of-5","title":"Riga Metal Hooks (Set of 5)","description":"\u003ch2\u003e\u003cstrong\u003eRiga Metal Hooks – Set of 5\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga Metal Hooks\u003c\/strong\u003e are purpose-built hanging accessories for Riga greenhouses, designed to slide directly into the extruded aluminum channel of the Riga frame. No drilling, no mounting hardware, no modifications — just slide in and hang. Each package includes 5 hooks, giving you immediate flexibility to hang plants, fans, grow lights, tools, or any other items throughout your greenhouse.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSlides directly into the extruded aluminum channel of the Riga greenhouse frame — no drilling or hardware required\u003c\/li\u003e\n\u003cli\u003eHeavy-duty metal construction — built to hold plants, fans, and equipment securely\u003c\/li\u003e\n\u003cli\u003eRepositionable — slide to any position along the frame channel as your needs change\u003c\/li\u003e\n\u003cli\u003eCompatible with all Riga greenhouse models that feature the extruded aluminum frame channel\u003c\/li\u003e\n\u003cli\u003eSet of 5 hooks per package\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 hooks per package\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSlides into extruded aluminum frame channel — no drilling required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga greenhouse series (models with extruded aluminum frame channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-METAL-HOOKS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$38.99 (set of 5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat Can You Hang?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHanging baskets\u003c\/strong\u003e — suspend trailing plants, strawberries, or flowers at any height along the frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCirculation fans\u003c\/strong\u003e — position fans at the optimal height for airflow without floor space\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrow lights\u003c\/strong\u003e — hang supplemental lighting directly from the frame channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool storage\u003c\/strong\u003e — hang hand tools, spray bottles, or garden twine for easy access\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShade cloth or netting\u003c\/strong\u003e — use hooks as anchor points for interior shade or pest netting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermometers \u0026amp; monitors\u003c\/strong\u003e — position sensors and gauges at plant canopy level for accurate readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich Riga greenhouse models are these hooks compatible with?\u003c\/strong\u003e\u003cbr\u003eThe hooks are designed for Riga greenhouse models that feature the extruded aluminum frame channel. This includes the Riga IIs, IIIs, III, IVs, IV, V, and XL series. If you are unsure whether your specific model has the compatible channel, contact us with your model number before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do the hooks attach to the Riga frame?\u003c\/strong\u003e\u003cbr\u003eThe hooks slide into the extruded aluminum channel that runs along the interior of the Riga greenhouse frame. No drilling, screwing, or permanent modification is required. Once in the channel, the hook locks into position under load and can be repositioned by sliding along the channel when unloaded.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow much weight can each hook hold?\u003c\/strong\u003e\u003cbr\u003eContact us for the specific load rating of the Riga metal hooks. As a general guideline, they are designed for typical greenhouse hanging loads such as hanging baskets, small fans, and hand tools. For heavier equipment, verify the load rating before use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use these hooks with non-Riga greenhouses?\u003c\/strong\u003e\u003cbr\u003eThese hooks are specifically designed for the extruded aluminum channel profile of Riga greenhouse frames. They may not be compatible with other greenhouse brands that use different frame profiles or channel dimensions. Contact us if you want to verify compatibility with a specific non-Riga frame.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow many hooks do I need for my Riga greenhouse?\u003c\/strong\u003e\u003cbr\u003eIt depends on your intended use. For a basic setup with a few hanging baskets and a fan, 5 hooks (one package) is a good starting point. For a fully equipped greenhouse with multiple hanging plants, fans, lights, and tool storage, 2–3 packages (10–15 hooks) gives you maximum flexibility. The hooks are repositionable, so you can always redistribute them as your needs change.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517643456798,"sku":"RIGA-METAL-HOOKS","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/riga-steel-hooks.webp?v=1786736322"},{"product_id":"riga-heavy-duty-seed-tray","title":"Riga Heavy Duty Seed Tray","description":"\u003ch2\u003e\u003cstrong\u003eRiga Heavy Duty Seed Tray\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga Heavy Duty Seed Tray\u003c\/strong\u003e is a deep-sided, durable growing tray designed for use in Riga greenhouses. At 24\" × 16\" × 3.5\" deep, it provides generous capacity for seed starting, seedling propagation, cutting propagation, or general plant staging — with the heavy-duty construction to handle repeated use season after season.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-duty construction — built for repeated greenhouse use\u003c\/li\u003e\n\u003cli\u003eDeep 3.5\" sides — accommodates deeper root development than standard shallow trays\u003c\/li\u003e\n\u003cli\u003eGenerous 24\" × 16\" footprint — fits standard greenhouse bench widths\u003c\/li\u003e\n\u003cli\u003eDesigned for use in Riga greenhouses\u003c\/li\u003e\n\u003cli\u003eSuitable for seeds, seedlings, cuttings, and plant staging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy duty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga greenhouse series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-HD-SEED-TRAYS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeed starting\u003c\/strong\u003e — fill with seed-starting mix and sow directly, or use to hold individual cell trays or plug trays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting propagation\u003c\/strong\u003e — fill with perlite or propagation mix for rooting cuttings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeedling staging\u003c\/strong\u003e — use as a bottom-watering tray by filling with water and setting potted seedlings inside\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral plant staging\u003c\/strong\u003e — use on greenhouse benches to organize and contain pots, preventing water runoff onto the bench surface\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this tray compatible with standard cell inserts or plug trays?\u003c\/strong\u003e\u003cbr\u003eThe 24\" × 16\" footprint is a standard greenhouse tray size that accommodates most standard 1020 cell inserts and plug trays. The 3.5\" depth means it can also be used as a deep flat for direct sowing without inserts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat makes this a \"heavy duty\" seed tray?\u003c\/strong\u003e\u003cbr\u003eHeavy duty seed trays are constructed from thicker, more rigid plastic than standard flimsy propagation trays. They hold their shape when filled with wet growing media, can be reused for multiple seasons without cracking, and support the weight of multiple cell inserts or pots without flexing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan this tray be used for bottom watering?\u003c\/strong\u003e\u003cbr\u003eYes — the 3.5\" deep sides make this tray well-suited for bottom watering. Fill the tray with water and set potted seedlings or cell trays inside; the plants draw water up through the drainage holes from below, encouraging deeper root development and reducing the risk of damping off from overhead watering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow many trays do I need for a Riga greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe number of trays depends on your bench configuration and growing goals. The 24\" × 16\" footprint fits standard greenhouse bench widths — contact us if you need help calculating how many trays will fit your specific Riga model’s bench setup.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517643489566,"sku":"RIGA-HD-SEED-TRAYS","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/HD_Riga_Seed_Trays.webp?v=1786734161"},{"product_id":"foundation-frame-for-riga-xl-9","title":"Foundation Frame for Riga XL 9","description":"\u003ch2\u003e\u003cstrong\u003eFoundation Frame for Riga XL 9 Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga XL 9 Foundation Frame\u003c\/strong\u003e is the purpose-built ground installation solution for the Riga XL 9 greenhouse — one of the largest models in the Riga XL series. Buried in a trench and backfilled with soil, it securely anchors the greenhouse directly to the ground without requiring a concrete foundation, while also raising the greenhouse height for additional headroom and growing space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Riga XL 9 greenhouse model\u003c\/li\u003e\n\u003cli\u003eBuried in-ground installation — no concrete required\u003c\/li\u003e\n\u003cli\u003eBackfilled with soil to securely anchor the greenhouse\u003c\/li\u003e\n\u003cli\u003eRaises the greenhouse height — adds headroom and growing space\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — engineered to fit the Riga XL 9 footprint exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga XL 9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuried in trench, backfilled with soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoundation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo concrete — installs directly into ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBenefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecures greenhouse to ground; adds height for headroom and growing space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-XL9-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$3,149\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Foundation Frame Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDig a trench around the perimeter of your greenhouse site to the required depth\u003c\/li\u003e\n\u003cli\u003ePosition the foundation frame in the trench at the correct level\u003c\/li\u003e\n\u003cli\u003eBackfill the trench with soil and compact to secure the frame\u003c\/li\u003e\n\u003cli\u003eAttach the Riga XL 9 greenhouse structure to the foundation frame\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method provides a secure, stable anchor without the cost or permanence of a concrete foundation. The raised frame height also gives you additional interior headroom and growing depth compared to a ground-level installation.\u003c\/p\u003e\n\n\u003ch3\u003eComplete Riga Foundation Frame Series\u003c\/h3\u003e\n\u003cp\u003eRiga foundation frames are model-specific — order the frame that matches your exact greenhouse model:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eFoundation Frame\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iis\"\u003eRiga IIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$824\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iiis\"\u003eRiga IIIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iii\"\u003eRiga III Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IVs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-ivs\"\u003eRiga IVs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,399\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iv\"\u003eRiga IV Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga V\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-v\"\u003eRiga V Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,749\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 5\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-xl-5\"\u003eRiga XL 5 Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$2,099\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 6\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-xl-6\"\u003eRiga XL 6 Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$2,199\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 9\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis frame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$3,149\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eIf you are unsure which model you have, check your greenhouse documentation or contact us with your model number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the Riga XL 9 greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe Riga XL 9 is one of the largest models in the Riga XL series — a premium German-engineered greenhouse with the distinctive \"onion\" arch profile, multi-wall polycarbonate glazing, and the structural performance the Riga series is known for. The XL series is the expandable line within the Riga lineup, with the number suffix indicating the length configuration.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the foundation frame required for the Riga XL 9?\u003c\/strong\u003e\u003cbr\u003eA proper foundation is strongly recommended for structural integrity, stability, and warranty compliance. The foundation frame is the recommended solution for soil or lawn installations. If you are installing on an existing concrete pad, you may not need this frame — contact us to confirm the right foundation approach for your site.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the foundation frame add headroom inside the greenhouse?\u003c\/strong\u003e\u003cbr\u003eYes — because the frame raises the greenhouse above ground level, you gain additional interior height compared to a ground-level installation. For the Riga XL 9 — one of the largest greenhouse structures in the Riga lineup — this additional headroom further enhances the already generous interior space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow deep does the trench need to be?\u003c\/strong\u003e\u003cbr\u003eThe required trench depth depends on your local frost line and soil conditions. Refer to your Riga XL 9 installation instructions or contact us for the recommended trench depth for your climate zone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install the foundation frame myself?\u003c\/strong\u003e\u003cbr\u003eYes — the installation process (dig trench, position frame, backfill, attach greenhouse) is designed for DIY completion. Given the large footprint of the Riga XL 9, having two or more people is strongly recommended for frame positioning and alignment. Refer to your Riga XL 9 installation instructions for specific guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe foundation frame ships free when ordered together with a Riga XL 9 greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size and weight.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517643522334,"sku":"RIGA-XL9-BASE","price":3149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Base_Foundation_3.webp?v=1786480930"},{"product_id":"foundation-frame-for-riga-xl-6","title":"Foundation Frame for Riga XL 6","description":"\u003ch2\u003e\u003cstrong\u003eFoundation Frame for Riga XL 6 Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga XL 6 Foundation Frame\u003c\/strong\u003e is the purpose-built ground installation solution for the Riga XL 6 greenhouse. Buried in a trench and backfilled with soil, it securely anchors the greenhouse directly to the ground without requiring a concrete foundation, while also raising the greenhouse height for additional headroom and growing space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Riga XL 6 greenhouse model\u003c\/li\u003e\n\u003cli\u003eBuried in-ground installation — no concrete required\u003c\/li\u003e\n\u003cli\u003eBackfilled with soil to securely anchor the greenhouse\u003c\/li\u003e\n\u003cli\u003eRaises the greenhouse height — adds headroom and growing space\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — engineered to fit the Riga XL 6 footprint exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga XL 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuried in trench, backfilled with soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoundation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo concrete — installs directly into ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBenefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecures greenhouse to ground; adds height for headroom and growing space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-XL6-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$2,199\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Foundation Frame Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDig a trench around the perimeter of your greenhouse site to the required depth\u003c\/li\u003e\n\u003cli\u003ePosition the foundation frame in the trench at the correct level\u003c\/li\u003e\n\u003cli\u003eBackfill the trench with soil and compact to secure the frame\u003c\/li\u003e\n\u003cli\u003eAttach the Riga XL 6 greenhouse structure to the foundation frame\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method provides a secure, stable anchor without the cost or permanence of a concrete foundation. The raised frame height also gives you additional interior headroom and growing depth compared to a ground-level installation.\u003c\/p\u003e\n\n\u003ch3\u003eRiga XL 5 vs. Riga XL 6 — Which Foundation Frame Do You Need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eRiga XL 5 Frame\u003c\/th\u003e\n\u003cth\u003eRiga XL 6 Frame (this product)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga XL 5\u003c\/td\u003e\n\u003ctd\u003eRiga XL 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$2,099\u003c\/td\u003e\n\u003ctd\u003e$2,199\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-XL5-BASE\u003c\/td\u003e\n\u003ctd\u003eRIGA-XL6-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe XL 5 and XL 6 are different length variants of the Riga XL series. Order the frame that matches your exact greenhouse model. If you are unsure which XL variant you have, check your greenhouse documentation or contact us before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eComplete Riga Foundation Frame Series\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eFoundation Frame\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iis\"\u003eRiga IIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$824\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iiis\"\u003eRiga IIIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iii\"\u003eRiga III Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IVs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-ivs\"\u003eRiga IVs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,399\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iv\"\u003eRiga IV Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga V\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-v\"\u003eRiga V Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,749\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 5\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-xl-5\"\u003eRiga XL 5 Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$2,099\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 6\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis frame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$2,199\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Riga XL 5 and XL 6 foundation frames?\u003c\/strong\u003e\u003cbr\u003eThe Riga XL 5 foundation frame ($2,099) is engineered for the Riga XL 5 greenhouse. The Riga XL 6 foundation frame ($2,199) is for the Riga XL 6 — a longer variant of the XL series. Both use the same buried in-ground installation method but are sized to fit their respective greenhouse footprints. Order the frame that matches your exact model.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the foundation frame required for the Riga XL 6?\u003c\/strong\u003e\u003cbr\u003eA proper foundation is strongly recommended for structural integrity, stability, and warranty compliance. The foundation frame is the recommended solution for soil or lawn installations. If you are installing on an existing concrete pad, you may not need this frame — contact us to confirm the right foundation approach for your site.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the foundation frame add headroom inside the greenhouse?\u003c\/strong\u003e\u003cbr\u003eYes — because the frame raises the greenhouse above ground level, you gain additional interior height compared to a ground-level installation. For the Riga XL 6 — one of the largest greenhouse structures available — this additional headroom further enhances the usability of the already generous interior space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow deep does the trench need to be?\u003c\/strong\u003e\u003cbr\u003eThe required trench depth depends on your local frost line and soil conditions. Refer to your Riga XL 6 installation instructions or contact us for the recommended trench depth for your climate zone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install the foundation frame myself?\u003c\/strong\u003e\u003cbr\u003eYes — the installation process (dig trench, position frame, backfill, attach greenhouse) is designed for DIY completion. Given the larger footprint of the Riga XL 6, having two or more people is strongly recommended for frame positioning and alignment. Refer to your Riga XL 6 installation instructions for specific guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe foundation frame ships free when ordered together with a Riga XL 6 greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size and weight.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517643555102,"sku":"RIGA-XL6-BASE","price":2199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Base_Foundation_3.webp?v=1786480930"},{"product_id":"foundation-frame-for-riga-xl-5","title":"Foundation Frame for Riga XL 5","description":"\u003ch2\u003e\u003cstrong\u003eFoundation Frame for Riga XL 5 Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga XL 5 Foundation Frame\u003c\/strong\u003e is the purpose-built ground installation solution for the Riga XL 5 greenhouse — the largest model in the Riga series. Buried in a trench and backfilled with soil, it securely anchors the greenhouse directly to the ground without requiring a concrete foundation, while also raising the greenhouse height for additional headroom and growing space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Riga XL 5 greenhouse model\u003c\/li\u003e\n\u003cli\u003eBuried in-ground installation — no concrete required\u003c\/li\u003e\n\u003cli\u003eBackfilled with soil to securely anchor the greenhouse\u003c\/li\u003e\n\u003cli\u003eRaises the greenhouse height — adds headroom and growing space\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — engineered to fit the Riga XL 5 footprint exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga XL 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuried in trench, backfilled with soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoundation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo concrete — installs directly into ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBenefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecures greenhouse to ground; adds height for headroom and growing space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-XL5-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$2,099\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Foundation Frame Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDig a trench around the perimeter of your greenhouse site to the required depth\u003c\/li\u003e\n\u003cli\u003ePosition the foundation frame in the trench at the correct level\u003c\/li\u003e\n\u003cli\u003eBackfill the trench with soil and compact to secure the frame\u003c\/li\u003e\n\u003cli\u003eAttach the Riga XL 5 greenhouse structure to the foundation frame\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method provides a secure, stable anchor without the cost or permanence of a concrete foundation. The raised frame height also gives you additional interior headroom and growing depth compared to a ground-level installation.\u003c\/p\u003e\n\n\u003ch3\u003eComplete Riga Foundation Frame Series\u003c\/h3\u003e\n\u003cp\u003eRiga foundation frames are model-specific — order the frame that matches your exact greenhouse model:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eFoundation Frame\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iis\"\u003eRiga IIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$824\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iiis\"\u003eRiga IIIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iii\"\u003eRiga III Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IVs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-ivs\"\u003eRiga IVs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,399\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iv\"\u003eRiga IV Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga V\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-v\"\u003eRiga V Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,749\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 5\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis frame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$2,099\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eIf you are unsure which model you have, check your greenhouse documentation or contact us with your model number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the Riga XL 5 the same as the Riga XL?\u003c\/strong\u003e\u003cbr\u003eThe Riga XL series includes multiple length configurations. The \"XL 5\" designation refers to a specific length variant within the XL lineup. If you are unsure whether your greenhouse is the XL 5 or a different XL variant, check your greenhouse documentation or contact us with your model number before ordering this foundation frame.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the foundation frame required for the Riga XL 5?\u003c\/strong\u003e\u003cbr\u003eA proper foundation is strongly recommended for structural integrity, stability, and warranty compliance. The foundation frame is the recommended solution for soil or lawn installations. If you are installing on an existing concrete pad, you may not need this frame — contact us to confirm the right foundation approach for your site.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the foundation frame add headroom inside the greenhouse?\u003c\/strong\u003e\u003cbr\u003eYes — because the frame raises the greenhouse above ground level, you gain additional interior height compared to a ground-level installation. For the Riga XL 5 — already one of the largest greenhouse structures available — this additional headroom further enhances the usability of the interior space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow deep does the trench need to be?\u003c\/strong\u003e\u003cbr\u003eThe required trench depth depends on your local frost line and soil conditions. Refer to your Riga XL 5 installation instructions or contact us for the recommended trench depth for your climate zone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install the foundation frame myself?\u003c\/strong\u003e\u003cbr\u003eYes — the installation process (dig trench, position frame, backfill, attach greenhouse) is designed for DIY completion. Given the larger footprint of the Riga XL 5, having two or more people is strongly recommended for frame positioning and alignment. Refer to your Riga XL 5 installation instructions for specific guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe foundation frame ships free when ordered together with a Riga XL 5 greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size and weight.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517643587870,"sku":"RIGA-XL5-BASE","price":2099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Base_Foundation_3.webp?v=1786480930"},{"product_id":"foundation-frame-for-riga-v","title":"Foundation Frame for Riga V","description":"\u003ch2\u003e\u003cstrong\u003eFoundation Frame for Riga V Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga V Foundation Frame\u003c\/strong\u003e is the purpose-built ground installation solution for the Riga V (Riga 5) greenhouse. Buried in a trench and backfilled with soil, it securely anchors the greenhouse directly to the ground without requiring a concrete foundation, while also raising the greenhouse height for additional headroom and growing space. This is the same base kit referenced as the recommended add-on (+$1,749) in the Riga V greenhouse listing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Riga V (Riga 5) greenhouse model\u003c\/li\u003e\n\u003cli\u003eBuried in-ground installation — no concrete required\u003c\/li\u003e\n\u003cli\u003eBackfilled with soil to securely anchor the greenhouse\u003c\/li\u003e\n\u003cli\u003eRaises the greenhouse height — adds headroom and growing space\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — engineered to fit the Riga V footprint (6\" H × 116\" W × 206\" D)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga V (Riga 5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrame Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6\" H × 116\" W × 206\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuried in trench, backfilled with soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoundation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo concrete — installs directly into ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBenefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecures greenhouse to ground; adds 6\" of height for headroom and growing space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-V-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,749\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Foundation Frame Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDig a trench around the perimeter of your greenhouse site to the required depth\u003c\/li\u003e\n\u003cli\u003ePosition the foundation frame (6\" H × 116\" W × 206\" D) in the trench at the correct level\u003c\/li\u003e\n\u003cli\u003eBackfill the trench with soil and compact to secure the frame\u003c\/li\u003e\n\u003cli\u003eAttach the Riga V greenhouse structure to the foundation frame\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method provides a secure, stable anchor without the cost or permanence of a concrete foundation. The 6\" raised frame height also gives you additional interior headroom and growing depth compared to a ground-level installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Foundation Frame Do You Need?\u003c\/h3\u003e\n\u003cp\u003eRiga foundation frames are model-specific — order the frame that matches your exact greenhouse model:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eFoundation Frame\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iis\"\u003eRiga IIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$824\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iiis\"\u003eRiga IIIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iii\"\u003eRiga III Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IVs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-ivs\"\u003eRiga IVs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,399\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iv\"\u003eRiga IV Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga V\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis frame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,749\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eIf you are unsure which model you have, check your greenhouse documentation or contact us with your model number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this the same base kit listed as an add-on in the Riga V greenhouse listing?\u003c\/strong\u003e\u003cbr\u003eYes — this is the exact foundation frame referenced as the recommended +$1,749 add-on in the \u003ca href=\"\/products\/riga-v-9x17-greenhouse-german-made\"\u003eRiga V greenhouse listing\u003c\/a\u003e. If you purchased the Riga V greenhouse without the base kit and now need to add it, this is the correct product to order (note: separate shipping charges apply when ordered independently).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the foundation frame required for the Riga V?\u003c\/strong\u003e\u003cbr\u003eA proper foundation is strongly recommended for structural integrity, stability, and warranty compliance. The foundation frame is the recommended solution for soil or lawn installations. If you are installing on an existing concrete pad, you may not need this frame — contact us to confirm the right foundation approach for your site.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the foundation frame add headroom inside the greenhouse?\u003c\/strong\u003e\u003cbr\u003eYes — the Riga V foundation frame raises the greenhouse by 6 inches, giving you additional interior height compared to a ground-level installation. This is a meaningful benefit for tall growers or for hanging baskets and vertical growing setups inside the Riga V’s already generous 7'7\" peak height.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow deep does the trench need to be?\u003c\/strong\u003e\u003cbr\u003eThe required trench depth depends on your local frost line and soil conditions. Refer to your Riga V installation instructions or contact us for the recommended trench depth for your climate zone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install the foundation frame myself?\u003c\/strong\u003e\u003cbr\u003eYes — the installation process (dig trench, position frame, backfill, attach greenhouse) is designed for DIY completion. Having two people is recommended for frame positioning and alignment given the Riga V’s larger footprint (116\" × 206\"). Refer to your Riga V installation instructions for specific guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe foundation frame ships free when ordered together with a Riga V greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size and weight.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517643620638,"sku":"RIGA-V-BASE","price":1749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Base_Foundation_3.webp?v=1786480930"},{"product_id":"foundation-frame-for-riga-ivs","title":"Foundation Frame for Riga IVs","description":"\u003ch2\u003e\u003cstrong\u003eFoundation Frame for Riga IVs Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga IVs Foundation Frame\u003c\/strong\u003e is the purpose-built ground installation solution for the Riga IVs greenhouse — the smaller \"S\" variant of the Riga IV series. Buried in a trench and backfilled with soil, it securely anchors the greenhouse directly to the ground without requiring a concrete foundation, while also raising the greenhouse height for additional headroom and growing space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Riga IVs greenhouse model\u003c\/li\u003e\n\u003cli\u003eBuried in-ground installation — no concrete required\u003c\/li\u003e\n\u003cli\u003eBackfilled with soil to securely anchor the greenhouse\u003c\/li\u003e\n\u003cli\u003eRaises the greenhouse height — adds headroom and growing space\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — engineered to fit the Riga IVs footprint exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IVs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuried in trench, backfilled with soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoundation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo concrete — installs directly into ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBenefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecures greenhouse to ground; adds height for headroom and growing space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-IVS-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,399\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Foundation Frame Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDig a trench around the perimeter of your greenhouse site to the required depth\u003c\/li\u003e\n\u003cli\u003ePosition the foundation frame in the trench at the correct level\u003c\/li\u003e\n\u003cli\u003eBackfill the trench with soil and compact to secure the frame\u003c\/li\u003e\n\u003cli\u003eAttach the Riga IVs greenhouse structure to the foundation frame\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method provides a secure, stable anchor without the cost or permanence of a concrete foundation. The raised frame height also gives you additional interior headroom and growing depth compared to a ground-level installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Foundation Frame Do You Need?\u003c\/h3\u003e\n\u003cp\u003eRiga foundation frames are model-specific — order the frame that matches your exact greenhouse model:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eFoundation Frame\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iis\"\u003eRiga IIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$824\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iiis\"\u003eRiga IIIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iii\"\u003eRiga III Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IVs (smaller \"S\" variant)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis frame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,399\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iv\"\u003eRiga IV Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eIf you are unsure which model you have, check your greenhouse documentation or contact us with your model number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Riga IVs and Riga IV foundation frames?\u003c\/strong\u003e\u003cbr\u003eThe Riga IVs foundation frame ($1,399) is engineered for the shorter \"S\" variant of the Riga IV series. The Riga IV foundation frame ($1,499) is for the standard-length Riga IV. Both use the same buried in-ground installation method but are sized to fit their respective greenhouse footprints. Order the frame that matches your exact model.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the foundation frame required for the Riga IVs?\u003c\/strong\u003e\u003cbr\u003eA proper foundation is strongly recommended for structural integrity, stability, and warranty compliance. The foundation frame is the recommended solution for soil or lawn installations. If you are installing on an existing concrete pad, you may not need this frame — contact us to confirm the right foundation approach for your site.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the foundation frame add headroom inside the greenhouse?\u003c\/strong\u003e\u003cbr\u003eYes — because the frame raises the greenhouse above ground level, you gain additional interior height compared to a ground-level installation. This is a meaningful benefit for tall growers or for hanging baskets and vertical growing setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow deep does the trench need to be?\u003c\/strong\u003e\u003cbr\u003eThe required trench depth depends on your local frost line and soil conditions. Refer to your Riga IVs installation instructions or contact us for the recommended trench depth for your climate zone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install the foundation frame myself?\u003c\/strong\u003e\u003cbr\u003eYes — the installation process (dig trench, position frame, backfill, attach greenhouse) is designed for DIY completion. Having two people is recommended for frame positioning and alignment. Refer to your Riga IVs installation instructions for specific guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe foundation frame ships free when ordered together with a Riga IVs greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size and weight.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517643817246,"sku":"RIGA-IVS-BASE","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Base_Foundation_3.webp?v=1786480930"},{"product_id":"foundation-frame-for-riga-iv","title":"Foundation Frame for Riga IV","description":"\u003ch2\u003e\u003cstrong\u003eFoundation Frame for Riga IV Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga IV Foundation Frame\u003c\/strong\u003e is the purpose-built ground installation solution for the Riga IV greenhouse. Buried in a trench and backfilled with soil, it securely anchors the greenhouse directly to the ground without requiring a concrete foundation, while also raising the greenhouse height for additional headroom and growing space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Riga IV greenhouse model\u003c\/li\u003e\n\u003cli\u003eBuried in-ground installation — no concrete required\u003c\/li\u003e\n\u003cli\u003eBackfilled with soil to securely anchor the greenhouse\u003c\/li\u003e\n\u003cli\u003eRaises the greenhouse height — adds headroom and growing space\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — engineered to fit the Riga IV footprint exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuried in trench, backfilled with soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoundation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo concrete — installs directly into ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBenefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecures greenhouse to ground; adds height for headroom and growing space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-IV-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Foundation Frame Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDig a trench around the perimeter of your greenhouse site to the required depth\u003c\/li\u003e\n\u003cli\u003ePosition the foundation frame in the trench at the correct level\u003c\/li\u003e\n\u003cli\u003eBackfill the trench with soil and compact to secure the frame\u003c\/li\u003e\n\u003cli\u003eAttach the Riga IV greenhouse structure to the foundation frame\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method provides a secure, stable anchor without the cost or permanence of a concrete foundation. The raised frame height also gives you additional interior headroom and growing depth compared to a ground-level installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Foundation Frame Do You Need?\u003c\/h3\u003e\n\u003cp\u003eRiga foundation frames are model-specific — order the frame that matches your exact greenhouse model:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eFoundation Frame\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iis\"\u003eRiga IIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$824\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iiis\"\u003eRiga IIIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iii\"\u003eRiga III Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis frame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eIf you are unsure which model you have, check your greenhouse documentation or contact us with your model number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Riga IV and Riga IVs foundation frames?\u003c\/strong\u003e\u003cbr\u003eThe Riga IV foundation frame ($1,499) is engineered for the standard Riga IV. If you have the smaller \"S\" variant (Riga IVs), a different model-specific frame may be required. Contact us with your exact model number to confirm the correct frame before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the foundation frame required for the Riga IV?\u003c\/strong\u003e\u003cbr\u003eA proper foundation is strongly recommended for structural integrity, stability, and warranty compliance. The foundation frame is the recommended solution for soil or lawn installations. If you are installing on an existing concrete pad, you may not need this frame — contact us to confirm the right foundation approach for your site.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the foundation frame add headroom inside the greenhouse?\u003c\/strong\u003e\u003cbr\u003eYes — because the frame raises the greenhouse above ground level, you gain additional interior height compared to a ground-level installation. This is a meaningful benefit for tall growers or for hanging baskets and vertical growing setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow deep does the trench need to be?\u003c\/strong\u003e\u003cbr\u003eThe required trench depth depends on your local frost line and soil conditions. Refer to your Riga IV installation instructions or contact us for the recommended trench depth for your climate zone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install the foundation frame myself?\u003c\/strong\u003e\u003cbr\u003eYes — the installation process (dig trench, position frame, backfill, attach greenhouse) is designed for DIY completion. Having two people is recommended for frame positioning and alignment. Refer to your Riga IV installation instructions for specific guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe foundation frame ships free when ordered together with a Riga IV greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size and weight.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517644144926,"sku":"RIGA-IV-BASE","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Base_Foundation_3.webp?v=1786480930"},{"product_id":"foundation-frame-for-riga-iis","title":"Foundation Frame for Riga IIs","description":"\u003ch2\u003e\u003cstrong\u003eFoundation Frame for Riga IIs Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga IIs Foundation Frame\u003c\/strong\u003e is the purpose-built ground installation solution for the Riga IIs greenhouse — the smaller \"S\" variant of the Riga II series. Buried in a trench and backfilled with soil, it securely anchors the greenhouse directly to the ground without requiring a concrete foundation, while also raising the greenhouse height for additional headroom and growing space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Riga IIs greenhouse model\u003c\/li\u003e\n\u003cli\u003eBuried in-ground installation — no concrete required\u003c\/li\u003e\n\u003cli\u003eBackfilled with soil to securely anchor the greenhouse\u003c\/li\u003e\n\u003cli\u003eRaises the greenhouse height — adds headroom and growing space\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — engineered to fit the Riga IIs footprint exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuried in trench, backfilled with soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoundation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo concrete — installs directly into ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBenefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecures greenhouse to ground; adds height for headroom and growing space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-IIS-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$824\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Foundation Frame Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDig a trench around the perimeter of your greenhouse site to the required depth\u003c\/li\u003e\n\u003cli\u003ePosition the foundation frame in the trench at the correct level\u003c\/li\u003e\n\u003cli\u003eBackfill the trench with soil and compact to secure the frame\u003c\/li\u003e\n\u003cli\u003eAttach the Riga IIs greenhouse structure to the foundation frame\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method provides a secure, stable anchor without the cost or permanence of a concrete foundation. The raised frame height also gives you additional interior headroom and growing depth compared to a ground-level installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Foundation Frame Do You Need?\u003c\/h3\u003e\n\u003cp\u003eRiga foundation frames are model-specific — order the frame that matches your exact greenhouse model:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eFoundation Frame\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs (smaller \"S\" variant)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis frame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$824\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iiis\"\u003eRiga IIIs Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iii\"\u003eRiga III Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eIf you are unsure which model you have, check your greenhouse documentation or contact us with your model number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Riga IIs and Riga IIIs foundation frames?\u003c\/strong\u003e\u003cbr\u003eThe Riga IIs foundation frame ($824) is engineered for the Riga IIs — the smaller \"S\" variant of the Riga II series. The Riga IIIs foundation frame ($1,049) is for the Riga IIIs — the smaller \"S\" variant of the Riga III series. Both use the same buried in-ground installation method but are sized to fit their respective greenhouse footprints. Order the frame that matches your exact model.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the foundation frame required for the Riga IIs?\u003c\/strong\u003e\u003cbr\u003eA proper foundation is strongly recommended for structural integrity, stability, and warranty compliance. The foundation frame is the recommended solution for soil or lawn installations. If you are installing on an existing concrete pad, you may not need this frame — contact us to confirm the right foundation approach for your site.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the foundation frame add headroom inside the greenhouse?\u003c\/strong\u003e\u003cbr\u003eYes — because the frame raises the greenhouse above ground level, you gain additional interior height compared to a ground-level installation. This is a meaningful benefit for tall growers or for hanging baskets and vertical growing setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow deep does the trench need to be?\u003c\/strong\u003e\u003cbr\u003eThe required trench depth depends on your local frost line and soil conditions. Refer to your Riga IIs installation instructions or contact us for the recommended trench depth for your climate zone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install the foundation frame myself?\u003c\/strong\u003e\u003cbr\u003eYes — the installation process (dig trench, position frame, backfill, attach greenhouse) is designed for DIY completion. Having two people is recommended for frame positioning and alignment. Refer to your Riga IIs installation instructions for specific guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe foundation frame ships free when ordered together with a Riga IIs greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size and weight.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517644177694,"sku":"RIGA-IIS-BASE","price":824.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Base_Foundation_3.webp?v=1786480930"},{"product_id":"foundation-frame-for-riga-iiis","title":"Foundation Frame for Riga IIIs","description":"\u003ch2\u003e\u003cstrong\u003eFoundation Frame for Riga IIIs Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga IIIs Foundation Frame\u003c\/strong\u003e is the purpose-built ground installation solution for the Riga IIIs greenhouse — the smaller \"S\" variant of the Riga III series. Buried in a trench and backfilled with soil, it securely anchors the greenhouse directly to the ground without requiring a concrete foundation, while also raising the greenhouse height for additional headroom and growing space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Riga IIIs greenhouse model\u003c\/li\u003e\n\u003cli\u003eBuried in-ground installation — no concrete required\u003c\/li\u003e\n\u003cli\u003eBackfilled with soil to securely anchor the greenhouse\u003c\/li\u003e\n\u003cli\u003eRaises the greenhouse height — adds headroom and growing space\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — engineered to fit the Riga IIIs footprint exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuried in trench, backfilled with soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoundation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo concrete — installs directly into ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBenefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecures greenhouse to ground; adds height for headroom and growing space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-IIIS-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Foundation Frame Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDig a trench around the perimeter of your greenhouse site to the required depth\u003c\/li\u003e\n\u003cli\u003ePosition the foundation frame in the trench at the correct level\u003c\/li\u003e\n\u003cli\u003eBackfill the trench with soil and compact to secure the frame\u003c\/li\u003e\n\u003cli\u003eAttach the Riga IIIs greenhouse structure to the foundation frame\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method provides a secure, stable anchor without the cost or permanence of a concrete foundation. The raised frame height also gives you additional interior headroom and growing depth compared to a ground-level installation.\u003c\/p\u003e\n\n\u003ch3\u003eRiga IIIs vs. Riga III — Which Foundation Frame Do You Need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eFoundation Frame\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs (smaller \"S\" variant)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis frame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III (standard)\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/foundation-frame-for-riga-iii\"\u003eRiga III Foundation Frame\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe Riga IIIs is the shorter length variant of the Riga III series. Both share the same arch width and profile but differ in length — and each requires its own model-specific foundation frame. Make sure you order the frame that matches your exact greenhouse model.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Riga IIIs and Riga III foundation frames?\u003c\/strong\u003e\u003cbr\u003eThe Riga IIIs foundation frame ($1,049) is engineered for the shorter \"S\" variant of the Riga III series. The Riga III foundation frame ($1,299) is for the standard-length Riga III. Both use the same buried in-ground installation method but are sized to fit their respective greenhouse footprints. Order the frame that matches your exact model.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the foundation frame required for the Riga IIIs?\u003c\/strong\u003e\u003cbr\u003eA proper foundation is strongly recommended for structural integrity, stability, and warranty compliance. The foundation frame is the recommended solution for soil or lawn installations. If you are installing on an existing concrete pad, you may not need this frame — contact us to confirm the right foundation approach for your site.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the foundation frame add headroom inside the greenhouse?\u003c\/strong\u003e\u003cbr\u003eYes — because the frame raises the greenhouse above ground level, you gain additional interior height compared to a ground-level installation. This is a meaningful benefit for tall growers or for hanging baskets and vertical growing setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow deep does the trench need to be?\u003c\/strong\u003e\u003cbr\u003eThe required trench depth depends on your local frost line and soil conditions. Refer to your Riga IIIs installation instructions or contact us for the recommended trench depth for your climate zone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install the foundation frame myself?\u003c\/strong\u003e\u003cbr\u003eYes — the installation process (dig trench, position frame, backfill, attach greenhouse) is designed for DIY completion. Having two people is recommended for frame positioning and alignment. Refer to your Riga IIIs installation instructions for specific guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe foundation frame ships free when ordered together with a Riga IIIs greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size and weight.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517644210462,"sku":"RIGA-IIIS-BASE","price":1049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Base_Foundation_3.webp?v=1786480930"},{"product_id":"foundation-frame-for-riga-iii","title":"Foundation Frame for Riga III","description":"\u003ch2\u003e\u003cstrong\u003eFoundation Frame for Riga III Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga III Foundation Frame\u003c\/strong\u003e is the purpose-built ground installation solution for the Riga III greenhouse. Rather than requiring a concrete pad, this frame is buried in a trench and backfilled with soil to securely anchor the greenhouse directly to the ground — providing a stable, level foundation while also raising the greenhouse height for additional headroom and growing space.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, an additional shipping charge applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Riga III greenhouse model\u003c\/li\u003e\n\u003cli\u003eBuried in-ground installation — no concrete required\u003c\/li\u003e\n\u003cli\u003eBackfilled with soil to securely anchor the greenhouse\u003c\/li\u003e\n\u003cli\u003eRaises the greenhouse height — adds headroom and growing space\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — engineered to fit the Riga III footprint exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuried in trench, backfilled with soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoundation Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo concrete — installs directly into ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBenefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecures greenhouse to ground; adds height for headroom and growing space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-III-BASE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; additional charge when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Foundation Frame Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDig a trench around the perimeter of your greenhouse site to the required depth\u003c\/li\u003e\n\u003cli\u003ePosition the foundation frame in the trench at the correct level\u003c\/li\u003e\n\u003cli\u003eBackfill the trench with soil and compact to secure the frame\u003c\/li\u003e\n\u003cli\u003eAttach the Riga III greenhouse structure to the foundation frame\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method provides a secure, stable anchor without the cost or permanence of a concrete foundation. The raised frame height also gives you additional interior headroom and growing depth compared to a ground-level installation.\u003c\/p\u003e\n\n\u003ch3\u003eFoundation Frame vs. Concrete Foundation — Which Should You Choose?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eFoundation Frame (this product)\u003c\/th\u003e\n\u003cth\u003eConcrete Foundation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDig trench, backfill with soil\u003c\/td\u003e\n\u003ctd\u003ePour and cure concrete slab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCost\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLower — no concrete materials or labor\u003c\/td\u003e\n\u003ctd\u003eHigher — materials, labor, curing time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePermanence\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRemovable — can be relocated\u003c\/td\u003e\n\u003ctd\u003ePermanent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeadroom Benefit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes — raises greenhouse height\u003c\/td\u003e\n\u003ctd\u003eDepends on slab thickness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBest For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSoil or lawn installations without existing concrete\u003c\/td\u003e\n\u003ctd\u003eSites with existing concrete or maximum permanence required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the foundation frame required for the Riga III?\u003c\/strong\u003e\u003cbr\u003eA proper foundation is strongly recommended for structural integrity, stability, and warranty compliance. The foundation frame is the recommended solution for soil or lawn installations. If you are installing on an existing concrete pad, you may not need this frame — contact us to confirm the right foundation approach for your site.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow deep does the trench need to be?\u003c\/strong\u003e\u003cbr\u003eThe required trench depth depends on your local frost line and soil conditions. Contact us or refer to your Riga III installation instructions for the recommended trench depth for your climate zone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes the foundation frame add headroom inside the greenhouse?\u003c\/strong\u003e\u003cbr\u003eYes — because the frame raises the greenhouse above ground level, you gain additional interior height compared to a ground-level installation. This is a meaningful benefit for tall growers or for hanging baskets and vertical growing setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install the foundation frame myself?\u003c\/strong\u003e\u003cbr\u003eYes — the installation process (dig trench, position frame, backfill, attach greenhouse) is designed for DIY completion. Having two people is recommended for frame positioning and alignment. Refer to your Riga III installation instructions for specific guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe foundation frame ships free when ordered together with a Riga III greenhouse because it can be included in the same freight shipment. When ordered separately, it ships as a standalone item and an additional shipping charge applies due to its size and weight.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this foundation frame compatible with other Riga models?\u003c\/strong\u003e\u003cbr\u003eNo — this foundation frame is engineered specifically for the Riga III footprint. Other Riga models have their own dedicated foundation frames. Contact us to find the correct foundation frame for your specific Riga model.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517644275998,"sku":"RIGA-III-BASE","price":1299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Base_Foundation_3.webp?v=1786480930"},{"product_id":"riga-door-frame-extension-kit-20-taller-xl","title":"Riga Door Frame Extension Kit - 20\" taller (XL)","description":"\u003ch2\u003e\u003cstrong\u003eRiga XL Door Frame Extension Kit – +20\" Height | Both Doors Included\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga XL Door Frame Extension Kit\u003c\/strong\u003e adds 20 inches of height to \u003cstrong\u003eboth door frames\u003c\/strong\u003e of your Riga XL greenhouse when the structure is mounted on a raised foundation. It fills the gap above each door opening that results from elevating the greenhouse, eliminating the need to build a custom step-over or workaround. This kit includes all parts required to extend both of the Riga XL’s doors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, standard shipping rates apply.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdds 20\" of height to the Riga XL door frames\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCovers both doors\u003c\/strong\u003e — the Riga XL has two doors; this kit includes parts for both\u003c\/li\u003e\n\u003cli\u003eDesigned for raised foundation installations — fills the gap above each door opening\u003c\/li\u003e\n\u003cli\u003eCompatible with the Riga XL greenhouse model only\u003c\/li\u003e\n\u003cli\u003eEliminates the need for custom step-overs or workarounds at either door\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — no modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight Added\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 inches per door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDoors Covered\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBoth Riga XL doors (kit includes parts for 2 doors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga XL only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse Case\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRaised foundation installations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-DOOR-FRAME-EXT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; standard rates apply when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhy Is This Kit More Expensive Than Other Riga Extension Kits?\u003c\/h3\u003e\n\u003cp\u003eThe Riga XL is the only model in the Riga series with \u003cstrong\u003etwo doors\u003c\/strong\u003e. This extension kit includes parts to extend both door frames, which is why it is priced at $1,299 — compared to $379 (IIs\/IIIs\/IVs) and $439 (III\/IV\/V) for the single-door kits. You are getting a complete two-door solution in one purchase.\u003c\/p\u003e\n\n\u003ch3\u003eWhen Do You Need This Kit?\u003c\/h3\u003e\n\u003cp\u003eWhen a Riga XL greenhouse is installed on a raised foundation — such as a concrete pad, timber base, or elevated platform — both door frames sit higher than the standard ground-level installation. This creates a gap above each door opening between the top of the door frame and the greenhouse structure. The Door Frame Extension Kit fills both gaps cleanly and professionally, restoring both doors to their intended appearance and function without custom fabrication.\u003c\/p\u003e\n\u003cp\u003eIf your Riga XL will be installed at ground level on a standard base kit, you do not need this extension kit.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Extension Kit Do I Need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eKit\u003c\/th\u003e\n\u003cth\u003eCompatible Models\u003c\/th\u003e\n\u003cth\u003eDoors Covered\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/riga-door-frame-extension-kit-20-taller-iis-iiis-ivs\"\u003eIIs\/IIIs\/IVs kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IIs, IIIs, IVs\u003c\/td\u003e\n\u003ctd\u003e1 door\u003c\/td\u003e\n\u003ctd\u003e$379\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/riga-door-frame-extension-kit-20-taller-iii-iv-v\"\u003eIII\/IV\/V kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga III, IV, V\u003c\/td\u003e\n\u003ctd\u003e1 door\u003c\/td\u003e\n\u003ctd\u003e$439\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThis kit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga XL only\u003c\/td\u003e\n\u003ctd\u003e2 doors\u003c\/td\u003e\n\u003ctd\u003e$1,299\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy does the Riga XL kit cost so much more than the other extension kits?\u003c\/strong\u003e\u003cbr\u003eThe Riga XL is the only Riga model with two doors. This kit includes parts to extend both door frames, making it a complete two-door solution. The other extension kits ($379 and $439) cover a single door each. The per-door cost of the XL kit is comparable to the other kits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this kit compatible with any other Riga models besides the XL?\u003c\/strong\u003e\u003cbr\u003eNo — this kit is designed specifically for the Riga XL. For other Riga models, see the \u003ca href=\"\/products\/riga-door-frame-extension-kit-20-taller-iii-iv-v\"\u003eIII\/IV\/V kit ($439)\u003c\/a\u003e or the \u003ca href=\"\/products\/riga-door-frame-extension-kit-20-taller-iis-iiis-ivs\"\u003eIIs\/IIIs\/IVs kit ($379)\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo I need this kit if I’m using the standard Riga XL base kit?\u003c\/strong\u003e\u003cbr\u003eNot necessarily. The standard Riga base frame raises the greenhouse by 6 inches. Whether you need the door frame extension depends on the total height of your foundation. If you are installing on a raised concrete pad, timber platform, or other elevated foundation that significantly raises the greenhouse above ground level, this kit is recommended. Contact us with your foundation height and we’ll confirm whether the extension kit is needed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe door frame extension kit ships free when ordered together with a Riga greenhouse because it can be included in the same shipment. When ordered separately, it ships as a standalone item and standard shipping rates apply.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install this kit myself?\u003c\/strong\u003e\u003cbr\u003eYes — the extension kit is designed for straightforward installation without specialized tools. It attaches to the existing Riga XL door frames. Contact us if you need installation guidance specific to your setup.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517644308766,"sku":"RIGA-DOOR-FRAME-EXT","price":1299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_6.2.jpg?v=1786477795"},{"product_id":"riga-door-frame-extension-kit-20-taller-iis-iiis-ivs","title":"Riga Door Frame Extension Kit","description":"\u003ch2\u003e\u003cstrong\u003eRiga Door Frame Extension Kit – +20\" Height | Riga IIs, IIIs \u0026amp; IVs\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga Door Frame Extension Kit\u003c\/strong\u003e adds 20 inches of height to the door frame of your Riga IIs, IIIs, or IVs greenhouse when the structure is mounted on a raised foundation. It fills the gap above the door opening that results from elevating the greenhouse, eliminating the need to build a custom step-over or workaround for the raised door frame.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, standard shipping rates apply.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdds 20\" of height to the Riga door frame\u003c\/li\u003e\n\u003cli\u003eDesigned for raised foundation installations — fills the gap above the door opening\u003c\/li\u003e\n\u003cli\u003eCompatible with Riga IIs, Riga IIIs, and Riga IVs greenhouse models\u003c\/li\u003e\n\u003cli\u003eEliminates the need for a custom step-over or workaround at the door\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — no modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight Added\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IIs, Riga IIIs, Riga IVs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse Case\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRaised foundation installations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-DOOR-FRAME-EXT-234S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$379\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; standard rates apply when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhen Do You Need This Kit?\u003c\/h3\u003e\n\u003cp\u003eWhen a Riga greenhouse is installed on a raised foundation — such as a concrete pad, timber base, or elevated platform — the door frame sits higher than the standard ground-level installation. This creates a gap above the door opening between the top of the door frame and the greenhouse structure. The Door Frame Extension Kit fills this gap cleanly and professionally, restoring the door to its intended appearance and function without custom fabrication.\u003c\/p\u003e\n\u003cp\u003eIf your Riga greenhouse will be installed at ground level on a standard base kit, you do not need this extension kit.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Extension Kit Do I Need?\u003c\/h3\u003e\n\u003cp\u003eRiga offers two door frame extension kits — make sure you order the correct one for your model:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eKit\u003c\/th\u003e\n\u003cth\u003eCompatible Models\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThis kit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga IIs, Riga IIIs, Riga IVs\u003c\/td\u003e\n\u003ctd\u003e$379\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/riga-door-frame-extension-kit-20-taller-iii-iv-v\"\u003eOther kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga III, Riga IV, Riga V\u003c\/td\u003e\n\u003ctd\u003e$439\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe \"S\" suffix models (IIs, IIIs, IVs) are the smaller variants within each Riga size tier. If you are unsure which model you have, check your greenhouse documentation or contact us with your model number.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich Riga models is this kit compatible with?\u003c\/strong\u003e\u003cbr\u003eThis door frame extension kit is compatible with the Riga IIs, Riga IIIs, and Riga IVs greenhouse models — the smaller \"S\" suffix variants. It is not compatible with the standard Riga III, IV, or V models (those use a different kit priced at $439), or the Riga XL. If you are unsure which model you have, contact us with your greenhouse model number before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Riga \"S\" models and the standard models?\u003c\/strong\u003e\u003cbr\u003eThe \"S\" suffix (IIs, IIIs, IVs) denotes the smaller length variant within each Riga size tier. For example, the Riga IIIs is shorter than the standard Riga III. Both share the same width and arch profile but differ in length. The door frame extension kits are model-specific, so it’s important to order the correct kit for your exact model.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo I need this kit if I’m using the standard Riga base kit?\u003c\/strong\u003e\u003cbr\u003eNot necessarily. The standard Riga base frame raises the greenhouse by 6 inches. Whether you need the door frame extension depends on the total height of your foundation. If you are installing on a raised concrete pad, timber platform, or other elevated foundation that significantly raises the greenhouse above ground level, this kit is recommended. Contact us with your foundation height and we’ll confirm whether the extension kit is needed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe door frame extension kit ships free when ordered together with a Riga greenhouse because it can be included in the same shipment. When ordered separately, it ships as a standalone item and standard shipping rates apply.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install this kit myself?\u003c\/strong\u003e\u003cbr\u003eYes — the extension kit is designed for straightforward installation without specialized tools. It attaches to the existing Riga door frame. Contact us if you need installation guidance specific to your model.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517644341534,"sku":"RIGA-DOOR-FRAME-EXT-234S","price":379.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_5.3.webp?v=1786477861"},{"product_id":"riga-door-frame-extension-kit-20-taller-iii-iv-v","title":"Riga Door Frame Extension Kit","description":"\u003ch2\u003e\u003cstrong\u003eRiga Door Frame Extension Kit – +20\" Height | Riga III, IV \u0026amp; V\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga Door Frame Extension Kit\u003c\/strong\u003e adds 20 inches of height to the door frame of your Riga III, IV, or V greenhouse when the structure is mounted on a raised foundation. It fills the gap above the door opening that results from elevating the greenhouse, eliminating the need to build a custom step-over or workaround for the raised door frame.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, standard shipping rates apply.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdds 20\" of height to the Riga door frame\u003c\/li\u003e\n\u003cli\u003eDesigned for raised foundation installations — fills the gap above the door opening\u003c\/li\u003e\n\u003cli\u003eCompatible with Riga III, Riga IV, and Riga V greenhouse models\u003c\/li\u003e\n\u003cli\u003eEliminates the need for a custom step-over or workaround at the door\u003c\/li\u003e\n\u003cli\u003ePurpose-built Riga accessory — no modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight Added\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRiga III, Riga IV, Riga V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse Case\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRaised foundation installations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-DOOR-FRAME-345\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree when purchased with a Riga greenhouse; standard rates apply when ordered separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhen Do You Need This Kit?\u003c\/h3\u003e\n\u003cp\u003eWhen a Riga greenhouse is installed on a raised foundation — such as a concrete pad, timber base, or elevated platform — the door frame sits higher than the standard ground-level installation. This creates a gap above the door opening between the top of the door frame and the greenhouse structure. The Door Frame Extension Kit fills this gap cleanly and professionally, restoring the door to its intended appearance and function without custom fabrication.\u003c\/p\u003e\n\u003cp\u003eIf your Riga greenhouse will be installed at ground level on a standard base kit, you do not need this extension kit.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich Riga models is this kit compatible with?\u003c\/strong\u003e\u003cbr\u003eThis door frame extension kit is compatible with the Riga III, Riga IV, and Riga V greenhouse models. It is not compatible with the Riga XL or other Riga models. If you are unsure whether this kit fits your model, contact us with your greenhouse model number before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo I need this kit if I’m using the standard Riga base kit?\u003c\/strong\u003e\u003cbr\u003eNot necessarily. The standard Riga base frame raises the greenhouse by 6 inches. Whether you need the door frame extension depends on the total height of your foundation. If you are installing on a raised concrete pad, timber platform, or other elevated foundation that significantly raises the greenhouse above ground level, this kit is recommended. Contact us with your foundation height and we’ll confirm whether the extension kit is needed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is free shipping only available when purchased with a greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe door frame extension kit ships free when ordered together with a Riga greenhouse because it can be included in the same shipment. When ordered separately, it ships as a standalone item and standard shipping rates apply.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this a genuine Riga replacement\/accessory part?\u003c\/strong\u003e\u003cbr\u003eYes — this is a purpose-built Riga accessory designed specifically for the Riga III, IV, and V door frames. It requires no modifications and fits the existing door frame structure directly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I install this kit myself?\u003c\/strong\u003e\u003cbr\u003eYes — the extension kit is designed for straightforward installation without specialized tools. It attaches to the existing Riga door frame. Contact us if you need installation guidance specific to your model.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517644374302,"sku":"RIGA-DOOR-FRAME-345","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_6.2.jpg?v=1786477795"},{"product_id":"peco-tf115p-manual-dial-thermostat-greenhouse","title":"PECO TF115P Manual Dial Thermostat for Greenhouse Exhaust Fans","description":"\u003cp\u003eThe PECO TF115P-002 Manual Dial Thermostat gives you simple, reliable temperature control for your greenhouse exhaust fan, intake vent, or heater. Set your target temperature with the dial — the thermostat does the rest, automatically switching your cooling or heating device on and off to maintain the right growing environment.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple dial control:\u003c\/strong\u003e Set your desired temperature directly on the dial — no programming or digital interface required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-play setup:\u003c\/strong\u003e Plug into any standard 110\/120V outlet, then plug your exhaust fan or intake vent into the piggyback cord — no wiring needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-configured for cooling:\u003c\/strong\u003e Ships ready to control exhaust fans and intake vents; includes a wiring diagram to reconfigure for use with a heater\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather-resistant enclosure:\u003c\/strong\u003e Rugged housing designed to withstand the humid, temperature-variable conditions inside a greenhouse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile compatibility:\u003c\/strong\u003e Works with any 110\/120V exhaust fan, intake vent, or heater that plugs into a standard outlet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003ePlug the thermostat into a 110\/120V power source. Plug your exhaust fan or intake vent into the thermostat's piggyback outlet. Set the dial to your target temperature. When the greenhouse reaches that temperature, the thermostat automatically powers on your fan to cool it down — and shuts it off once the temperature drops back to the set point.\u003c\/p\u003e\n\u003ch2\u003eCooling \u0026amp; Heating Use\u003c\/h2\u003e\n\u003cp\u003eThe TF115P-002 is pre-wired for \u003cstrong\u003ecooling mode\u003c\/strong\u003e (powers on when temperature rises above the set point). It includes a wiring diagram to reconfigure it for \u003cstrong\u003eheating mode\u003c\/strong\u003e (powers on when temperature drops below the set point), making it a flexible year-round solution.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eCompatible with any 110\/120V plug-in exhaust fan, intake shutter vent, or heater. Pairs directly with Riga greenhouse exhaust fans (16\", 20\") and intake shutter vents (16\", 20\", 24\") for a complete automatic ventilation system.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e PECO TF115P-002\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 110\/120V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl type:\u003c\/strong\u003e Manual dial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefault mode:\u003c\/strong\u003e Cooling (rewirable for heating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Weather-resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Plug-in piggyback cord\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e TF115P-02\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat devices can I control with this thermostat?\u003c\/h3\u003e\n\u003cp\u003eAny 110\/120V plug-in device — including exhaust fans, intake shutter vents, and heaters. It pairs directly with Riga greenhouse exhaust fans and intake vents for a complete automatic ventilation system.\u003c\/p\u003e\n\u003ch3\u003eDoes it require any wiring or an electrician?\u003c\/h3\u003e\n\u003cp\u003eNo. The plug-in piggyback setup requires no hardwiring. Plug the thermostat into a standard 110\/120V outlet and plug your fan or vent into the thermostat's outlet — that's it.\u003c\/p\u003e\n\u003ch3\u003eIs it pre-configured for cooling or heating?\u003c\/h3\u003e\n\u003cp\u003eIt ships pre-configured for \u003cstrong\u003ecooling\u003c\/strong\u003e — it powers on your fan when the temperature rises above the set point. It includes a wiring diagram to reconfigure it for \u003cstrong\u003eheating mode\u003c\/strong\u003e if needed.\u003c\/p\u003e\n\u003ch3\u003eCan I use this with a Riga greenhouse exhaust fan?\u003c\/h3\u003e\n\u003cp\u003eYes. This thermostat is compatible with Riga 16\" and 20\" exhaust fans and all Riga intake shutter vents (16\", 20\", 24\"). Together they form a complete automatic greenhouse ventilation system.\u003c\/p\u003e\n\u003ch3\u003eIs the enclosure suitable for greenhouse humidity?\u003c\/h3\u003e\n\u003cp\u003eYes. The PECO TF115P features a \u003cstrong\u003eweather-resistant enclosure\u003c\/strong\u003e designed to handle the high humidity and temperature swings typical inside a greenhouse.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between this and a digital thermostat?\u003c\/h3\u003e\n\u003cp\u003eThis is a manual dial thermostat — straightforward to set with no programming required. A digital thermostat offers more precise temperature settings and may include additional features like timers or displays, but the TF115P is the simpler, more affordable option for growers who want reliable automatic control without complexity.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59734346236190,"sku":"TF115P-02","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/peco_thermostat.webp?v=1785879921"},{"product_id":"pro-temperature-control-kit-riga-xl-6-greenhouse","title":"Pro Temperature Control Kit for Riga XL 6 Greenhouse","description":"\u003cp\u003eThe Pro Temperature Control Kit for Riga XL 6 is a complete climate and growing accessory bundle designed to transform your Riga XL 6 greenhouse into a fully equipped, year-round growing environment. Everything you need for ventilation, heating, and organization is included — no separate sourcing required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e As of April 27, 2026, LED grow lights are no longer included in this kit.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRiga XL 6 Top \u0026amp; Table Shelf\u003c\/strong\u003e — maximizes vertical growing and workspace inside the greenhouse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24\" Intake Shutter Vent\u003c\/strong\u003e — motorized intake vent sized for Riga XL wall panels; draws in fresh air automatically\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20\" Exhaust Fan\u003c\/strong\u003e — high-capacity fan to expel hot air and maintain airflow in large greenhouse structures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostat Controller\u003c\/strong\u003e — automatically controls the exhaust fan and intake vent based on your set temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e17,500 BTU 220V Heater\u003c\/strong\u003e — powerful heater to maintain growing temperatures through cold months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 Heavy-Duty Seed Trays\u003c\/strong\u003e — for starting seeds and propagating plants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 Stainless Steel Hooks \u0026amp; 10 Heavy-Duty Plastic Hooks\u003c\/strong\u003e — for hanging tools, baskets, and accessories\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacilitation Kit\u003c\/strong\u003e — additional accessories to support setup and organization\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Kit\u003c\/h2\u003e\n\u003cp\u003eSourcing ventilation, heating, and growing accessories separately for a large greenhouse is time-consuming and risks compatibility mismatches. This kit is pre-matched to the Riga XL 6 — every component is sized and configured to work together out of the box, from the 24\" intake vent and 20\" exhaust fan to the thermostat that ties them together automatically.\u003c\/p\u003e\n\u003ch2\u003eYear-Round Growing Capability\u003c\/h2\u003e\n\u003cp\u003eThe combination of a \u003cstrong\u003ehigh-capacity ventilation system\u003c\/strong\u003e (24\" intake vent + 20\" exhaust fan + thermostat) and a \u003cstrong\u003e17,500 BTU heater\u003c\/strong\u003e means your Riga XL 6 can maintain stable growing temperatures in both summer heat and winter cold — extending your growing season to 12 months a year.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eDesigned exclusively for the \u003cstrong\u003eRiga XL 6\u003c\/strong\u003e greenhouse model. All components are sized and matched for Riga XL specifications.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake vent:\u003c\/strong\u003e 24\" motorized shutter vent (requires 24.25\" × 24.25\" opening)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust fan:\u003c\/strong\u003e 20\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 17,500 BTU, 220V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostat:\u003c\/strong\u003e Plug-in dial thermostat, pre-configured for cooling (rewirable for heating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeed trays:\u003c\/strong\u003e 5 heavy-duty trays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHooks:\u003c\/strong\u003e 10 stainless steel + 10 heavy-duty plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible model:\u003c\/strong\u003e Riga XL 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e RIGA XL 6 Pro Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat greenhouse model is this kit designed for?\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed exclusively for the \u003cstrong\u003eRiga XL 6\u003c\/strong\u003e greenhouse model. All components are sized and matched to Riga XL 6 specifications.\u003c\/p\u003e\n\u003ch3\u003eAre LED grow lights included?\u003c\/h3\u003e\n\u003cp\u003eNo. As of \u003cstrong\u003eApril 27, 2026\u003c\/strong\u003e, LED grow lights are no longer included in this kit.\u003c\/p\u003e\n\u003ch3\u003eDoes this kit make the Riga XL 6 suitable for year-round growing?\u003c\/h3\u003e\n\u003cp\u003eYes. The combination of the 24\" intake vent, 20\" exhaust fan, thermostat, and 17,500 BTU heater provides both summer cooling and winter heating — enabling year-round growing in your Riga XL 6.\u003c\/p\u003e\n\u003ch3\u003eDoes the thermostat control both the fan and the intake vent?\u003c\/h3\u003e\n\u003cp\u003eYes. The included thermostat automatically controls the exhaust fan and intake vent based on your set temperature, creating a fully automatic ventilation system.\u003c\/p\u003e\n\u003ch3\u003eWhat voltage does the heater require?\u003c\/h3\u003e\n\u003cp\u003eThe included heater requires \u003cstrong\u003e220V\u003c\/strong\u003e. Ensure you have a 220V outlet available in or near your greenhouse before purchasing.\u003c\/p\u003e\n\u003ch3\u003eCan I buy individual components from this kit separately?\u003c\/h3\u003e\n\u003cp\u003eYes. The 24\" intake shutter vent, 20\" exhaust fan, and thermostat are each available individually in the Riga Accessories and Ventilation collections if you only need specific components.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59734381560094,"sku":"RIGA XL 6 Pro Kit","price":3100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Super_ventilation_kit_from_Exaco.webp?v=1786478050"},{"product_id":"pro-temperature-control-kit-riga-xl-9-greenhouse","title":"Pro Temperature Control Kit for Riga XL 9 Greenhouse","description":"\u003cp\u003eThe Pro Temperature Control Kit for Riga XL 9 is a complete climate and growing accessory bundle designed to transform your Riga XL 9 greenhouse into a fully equipped, year-round growing environment. Every component needed for ventilation, heating, and organization is included — pre-matched to the Riga XL 9, no separate sourcing required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e As of April 27, 2026, LED grow lights are no longer included in this kit.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRiga XL 6 or 9 Top \u0026amp; Table Shelf\u003c\/strong\u003e — maximizes vertical growing space and workspace inside the greenhouse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24\" Intake Shutter Vent\u003c\/strong\u003e — motorized intake vent sized for Riga XL wall panels; draws in fresh air automatically\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20\" Exhaust Fan\u003c\/strong\u003e — high-capacity fan to expel hot air and maintain airflow in large greenhouse structures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostat Controller\u003c\/strong\u003e — automatically controls the exhaust fan and intake vent based on your set temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e17,500 BTU 220V Heater\u003c\/strong\u003e — powerful heater to maintain growing temperatures through cold months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 Heavy-Duty Seed Trays\u003c\/strong\u003e — for starting seeds and propagating plants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 Stainless Steel Hooks \u0026amp; 10 Heavy-Duty Plastic Hooks\u003c\/strong\u003e — for hanging tools, baskets, and accessories\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacilitation Kit\u003c\/strong\u003e — additional accessories to support setup and organization\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Kit\u003c\/h2\u003e\n\u003cp\u003eThe Riga XL 9 is one of the largest greenhouse structures in the Riga lineup. Sourcing ventilation, heating, and growing accessories separately risks compatibility mismatches and delays. This kit is pre-matched to the Riga XL 9 — every component is sized and configured to work together out of the box, from the 24\" intake vent and 20\" exhaust fan to the thermostat that ties them together automatically.\u003c\/p\u003e\n\u003ch2\u003eYear-Round Growing Capability\u003c\/h2\u003e\n\u003cp\u003eThe combination of a \u003cstrong\u003ehigh-capacity ventilation system\u003c\/strong\u003e (24\" intake vent + 20\" exhaust fan + thermostat) and a \u003cstrong\u003e17,500 BTU heater\u003c\/strong\u003e means your Riga XL 9 can maintain stable growing temperatures in both summer heat and winter cold — extending your growing season to 12 months a year.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eDesigned for the \u003cstrong\u003eRiga XL 9\u003c\/strong\u003e greenhouse model. The included top and table shelf is compatible with both Riga XL 6 and Riga XL 9. All ventilation and heating components are sized for Riga XL specifications.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake vent:\u003c\/strong\u003e 24\" motorized shutter vent (requires 24.25\" × 24.25\" opening)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust fan:\u003c\/strong\u003e 20\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 17,500 BTU, 220V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostat:\u003c\/strong\u003e Plug-in dial thermostat, pre-configured for cooling (rewirable for heating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeed trays:\u003c\/strong\u003e 5 heavy-duty trays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHooks:\u003c\/strong\u003e 10 stainless steel + 10 heavy-duty plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible model:\u003c\/strong\u003e Riga XL 9 (shelf also fits Riga XL 6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e RIGA XL 9 Pro Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat greenhouse model is this kit designed for?\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed for the \u003cstrong\u003eRiga XL 9\u003c\/strong\u003e greenhouse model. The included top and table shelf is compatible with both Riga XL 6 and Riga XL 9; all ventilation and heating components are sized for Riga XL specifications.\u003c\/p\u003e\n\u003ch3\u003eAre LED grow lights included?\u003c\/h3\u003e\n\u003cp\u003eNo. As of \u003cstrong\u003eApril 27, 2026\u003c\/strong\u003e, LED grow lights are no longer included in this kit.\u003c\/p\u003e\n\u003ch3\u003eDoes this kit make the Riga XL 9 suitable for year-round growing?\u003c\/h3\u003e\n\u003cp\u003eYes. The combination of the 24\" intake vent, 20\" exhaust fan, thermostat, and 17,500 BTU heater provides both summer cooling and winter heating — enabling year-round growing in your Riga XL 9.\u003c\/p\u003e\n\u003ch3\u003eDoes the thermostat control both the fan and the intake vent?\u003c\/h3\u003e\n\u003cp\u003eYes. The included thermostat automatically controls the exhaust fan and intake vent based on your set temperature, creating a fully automatic ventilation system.\u003c\/p\u003e\n\u003ch3\u003eWhat voltage does the heater require?\u003c\/h3\u003e\n\u003cp\u003eThe included heater requires \u003cstrong\u003e220V\u003c\/strong\u003e. Ensure you have a 220V outlet available in or near your greenhouse before purchasing.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between the Riga XL 6 Pro Kit and the Riga XL 9 Pro Kit?\u003c\/h3\u003e\n\u003cp\u003eThe ventilation and heating components are the same in both kits. The primary difference is the \u003cstrong\u003etop and table shelf\u003c\/strong\u003e, which is sized to fit both Riga XL 6 and Riga XL 9, and the overall kit is configured and priced for the larger Riga XL 9 structure. Choose the kit that matches your greenhouse model.\u003c\/p\u003e\n\u003ch3\u003eCan I buy individual components from this kit separately?\u003c\/h3\u003e\n\u003cp\u003eYes. The 24\" intake shutter vent, 20\" exhaust fan, and thermostat are each available individually in the Riga Accessories and Ventilation collections if you only need specific components.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59734396141854,"sku":"RIGA XL 9 Pro Kit","price":3799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Super_ventilation_kit_from_Exaco.webp?v=1786478050"},{"product_id":"wheelbarrow-access-ramp","title":"Wheelbarrow Access Ramp","description":"\u003cp class=\"p1\"\u003eWheelbarrow Access Ramp for greenhouses: heavy duty solid\u003c\/p\u003e\n\u003cp class=\"p1\"\u003erubber -20\" w x 12\" long x 4\" high\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59734426222878,"sku":"VI AP","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/wheelbarrow-ramp-700.webp?v=1785879050"},{"product_id":"exhaust-fan-12","title":"Exhaust Fan 12\" for Riga Greenhouses","description":"\u003cp\u003eThe \u003cstrong\u003eRiga 12\" Exhaust Fan\u003c\/strong\u003e is a compact, high-efficiency ventilation solution designed for small to mid-size hobby greenhouses. Recommended for \u003cstrong\u003eRiga 2, 3, and 4\u003c\/strong\u003e models, it actively exhausts hot air and excess humidity to keep your growing environment stable and healthy year-round.\u003c\/p\u003e\n\u003ch2\u003eWhy Proper Greenhouse Ventilation Matters\u003c\/h2\u003e\n\u003cp\u003eWithout active airflow, greenhouse temperatures can climb 20–30°F above outdoor levels on sunny days, triggering heat stress, fungal disease, and crop loss. Mounting an exhaust fan high on the back wall creates a negative-pressure draw that pulls fresh air through intake vents at the opposite end — the most effective ventilation strategy for structures under 100 sq ft.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12\" blade diameter\u003c\/strong\u003e — right-sized CFM airflow for Riga 2, 3, and 4 footprints\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequires a 12.25\" × 12.25\" wall opening\u003c\/strong\u003e — fits standard Riga and Victorian J-Vic panel cutouts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-wired with a 9-foot power cord\u003c\/strong\u003e — plug-and-play installation, no electrician required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-wall placement\u003c\/strong\u003e — installs near the ridge for maximum heat and humidity extraction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairs with a thermostat controller\u003c\/strong\u003e — add automatic temperature management for hands-free climate control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatible Greenhouse Models\u003c\/h2\u003e\n\u003cp\u003eThis fan is sized and rated for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRiga 2, Riga 3, and Riga 4 greenhouses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor larger Riga and Victorian models, see our \u003ca href=\"https:\/\/riga-greenhouses.myshopify.com\/products\/exhaust-fan-16\" title='16\" Exhaust Fan'\u003e16\" Exhaust Fan\u003c\/a\u003e and \u003ca href=\"https:\/\/riga-greenhouses.myshopify.com\/products\/exhaust-fan-20\" title='20\" Exhaust Fan'\u003e20\" Exhaust Fan\u003c\/a\u003e options.\u003c\/p\u003e\n\u003ch2\u003eInstallation Overview\u003c\/h2\u003e\n\u003cp\u003eMount the fan high on the back (leeward) wall of your greenhouse. Pair with passive intake vents or louvers on the front wall near ground level. Connect to a thermostat controller (sold separately) to automate on\/off cycling based on your target temperature threshold.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size opening does the 12\" exhaust fan require?\u003c\/strong\u003e\u003cbr\u003eThe fan requires a 12.25\" × 12.25\" square opening in your greenhouse wall panel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fan need to be hardwired?\u003c\/strong\u003e\u003cbr\u003eNo. It comes pre-wired with a 9-foot power cord and plugs into a standard outlet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this fan with a thermostat?\u003c\/strong\u003e\u003cbr\u003eYes. It is compatible with standard greenhouse thermostat controllers for automatic temperature-based operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Riga greenhouse models does this fit?\u003c\/strong\u003e\u003cbr\u003eThis fan is recommended for Riga 2, Riga 3, and Riga 4. For larger Riga models, see the 16\" or 20\" fan options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 12\" and 16\" exhaust fans?\u003c\/strong\u003e\u003cbr\u003eThe 12\" fan is sized for smaller greenhouse footprints (Riga 2–4 and Victorian J-Vic\/VI), while the 16\" fan is designed for the larger Riga 5 and Victorian VI 34–46 models. Choose based on your greenhouse model for optimal airflow.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59770561069342,"sku":"VES 12 C","price":325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Exhaust_1.webp?v=1786648234"},{"product_id":"exhaust-fan-16","title":"Exhaust Fan 16\" for Riga Greenhouses","description":"\u003cp\u003eThe Riga 16\" Exhaust Fan is a high-capacity ventilation solution engineered for larger hobby and professional greenhouses. Recommended for the \u003cstrong\u003eRiga 5\u003c\/strong\u003e models, it actively removes hot air and excess humidity to maintain the stable growing environment your plants need year-round.\u003c\/p\u003e\n\u003ch2\u003eWhy Proper Greenhouse Ventilation Matters\u003c\/h2\u003e\n\u003cp\u003eWithout adequate airflow, greenhouse temperatures can spike 20–30°F above outdoor levels on sunny days, causing heat stress, disease pressure, and crop loss. An exhaust fan mounted high on the back wall creates a negative-pressure draw that pulls fresh air through vents or louvers at the opposite end — the most effective passive-plus-active ventilation strategy for structures over 100 sq ft.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16\" blade diameter\u003c\/strong\u003e — delivers high CFM airflow suited to larger greenhouse footprints\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequires a 16.25\" × 16.25\" wall opening\u003c\/strong\u003e — fits standard Riga 5 and Victorian VI panel cutouts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-wired with a 9-foot power cord\u003c\/strong\u003e — plug-and-play installation, no electrician required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-wall placement\u003c\/strong\u003e — installs near the ridge for maximum heat extraction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairs with a thermostat controller\u003c\/strong\u003e — add automatic temperature management for hands-free climate control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatible Greenhouse Models\u003c\/h2\u003e\n\u003cp\u003eThis fan is sized and rated for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRiga 5 greenhouse\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor smaller Riga and Victorian models, see our \u003ca href=\"https:\/\/riga-greenhouses.myshopify.com\/products\/exhaust-fan-12\" title='12\" Exhaust Fan'\u003e\u003cstrong\u003e12\" Exhaust Fan\u003c\/strong\u003e\u003c\/a\u003e and \u003ca href=\"https:\/\/riga-greenhouses.myshopify.com\/products\/exhaust-fan-20\" title='20\" Exhaust Fan'\u003e\u003cstrong\u003e20\" Exhaust Fan\u003c\/strong\u003e\u003c\/a\u003e options.\u003c\/p\u003e\n\u003ch2\u003eInstallation Overview\u003c\/h2\u003e\n\u003cp\u003eMount the fan high on the back (leeward) wall of your greenhouse. Pair with passive intake vents or louvers on the front wall near ground level. Connect to a thermostat controller (sold separately) to automate on\/off cycling based on your target temperature threshold.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size opening does the 16\" exhaust fan require?\u003c\/strong\u003e\u003cbr\u003eThe fan requires a 16.25\" × 16.25\" square opening in your greenhouse wall panel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fan need to be hardwired?\u003c\/strong\u003e\u003cbr\u003eNo. It comes pre-wired with a 9-foot power cord and plugs into a standard outlet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this fan with a thermostat?\u003c\/strong\u003e\u003cbr\u003eYes. It is compatible with standard greenhouse thermostat controllers for automatic temperature-based operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Riga greenhouse models does this fit?\u003c\/strong\u003e\u003cbr\u003eThis fan is recommended for the Riga 5. For other Riga models, check the 12\" or 20\" fan options.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59770631291166,"sku":"VES 16 C","price":370.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Exhaust_1.webp?v=1786648234"},{"product_id":"exhaust-fan-20","title":"Exhaust Fan 20\" for Riga XL Greenhouses","description":"\u003cp\u003eThe Riga 20\" Exhaust Fan is the highest-capacity ventilation option in the Riga exhaust fan lineup, engineered specifically for \u003ca href=\"https:\/\/riga-greenhouses.myshopify.com\/collections\/riga-xl-series-greenhouses\" title=\"Riga XL\"\u003eRiga XL\u003c\/a\u003e greenhouses. Its extra-large 20\" blade delivers the high-volume air exchange needed to keep the largest hobby greenhouse structures cool, dry, and productive year-round.\u003c\/p\u003e\n\u003ch2\u003eWhy Proper Greenhouse Ventilation Matters\u003c\/h2\u003e\n\u003cp\u003eWithout active airflow, greenhouse temperatures can climb 20–30°F above outdoor levels on sunny days, triggering heat stress, fungal disease, and crop loss. In an XL-footprint structure, passive roof vents alone are rarely sufficient — a powered exhaust fan mounted high on the back wall creates a negative-pressure draw that pulls fresh air through intake vents at the opposite end, the most effective ventilation strategy for large greenhouse volumes.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20\" blade diameter\u003c\/strong\u003e — maximum CFM airflow for Riga XL footprints\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequires a 20.25\" × 20.25\" wall opening\u003c\/strong\u003e — fits standard Riga XL panel cutouts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-wired with a 9-foot grounded power cord\u003c\/strong\u003e — plug-and-play on standard 110–120V household power, no electrician required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-wall placement\u003c\/strong\u003e — installs near the ridge or above the rear door for maximum heat and humidity extraction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairs with a thermostat controller\u003c\/strong\u003e — add automatic temperature management for hands-free climate control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatible Greenhouse Models\u003c\/h2\u003e\n\u003cp\u003eThis fan is sized and rated for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRiga XL greenhouse models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor smaller Riga models, see our \u003ca href=\"https:\/\/riga-greenhouses.myshopify.com\/products\/exhaust-fan-12\" title='12\" Exhaust Fan'\u003e12\" Exhaust Fan\u003c\/a\u003e (Riga 2–4) and \u003ca href=\"https:\/\/riga-greenhouses.myshopify.com\/products\/exhaust-fan-16\" title='16\" Exhaust Fan'\u003e16\" Exhaust Fan\u003c\/a\u003e (Riga 5) options.\u003c\/p\u003e\n\u003ch2\u003eInstallation Overview\u003c\/h2\u003e\n\u003cp\u003eCut a 20.25\" × 20.25\" opening in the polycarbonate panel high on the back wall — typically above the rear door on XL models so the fan can rest on a structural member. Insert the fan, bolt it through the flange holes, and seal the edges with neutral-cure silicone. Pair with passive intake vents or louvers on the front wall near ground level for a full cross-ventilation circuit. Detailed steps are included in the Riga XL assembly manuals; Exaco also provides a dedicated installation video: \u003cem\u003e\"Riga XL Fan Kit Installation Instructions.\"\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size opening does the 20\" exhaust fan require?\u003c\/strong\u003e\u003cbr\u003eThe fan requires a 20.25\" × 20.25\" square opening in your greenhouse wall panel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fan need to be hardwired?\u003c\/strong\u003e\u003cbr\u003eNo. It comes pre-wired with a 9-foot grounded plug-in cord and runs on standard 110–120V household power — no electrician required for basic installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this fan with a thermostat?\u003c\/strong\u003e\u003cbr\u003eYes, and it is highly recommended. A thermostat controller automatically turns the fan on and off based on your target temperature. If you also use an intake shutter vent, a simple plug splitter lets both units run from the same thermostat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere should I mount the fan?\u003c\/strong\u003e\u003cbr\u003eHigh on the back (leeward) wall, ideally above the rear door on XL models so it rests on a structural member. Position it opposite or diagonal from an intake vent to create an effective cross-breeze.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 20\" fan come with a warranty?\u003c\/strong\u003e\u003cbr\u003eYes. It carries the manufacturer’s standard warranty (typically 2 years on the motor, 1 year on other parts). It is not covered under the Riga greenhouse’s 10–15 year structural warranty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 12\", 16\", and 20\" exhaust fans?\u003c\/strong\u003e\u003cbr\u003eThe 12\" fan fits Riga 2–4 and Victorian J-Vic\/VI models; the 16\" fan fits the Riga 5 and Victorian VI 34–46; and the 20\" fan is designed exclusively for the Riga XL. Choose based on your greenhouse model for optimal airflow.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59770633814302,"sku":"VES 20 C","price":425.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Exhaust_2.webp?v=1786648234"},{"product_id":"16-inch-intake-shutter-vent-riga-greenhouses","title":"16\" Intake Shutter Vent for Riga Greenhouses","description":"\u003cp\u003eThe 16\" Intake Shutter Vent is a motorized intake vent engineered to work alongside your exhaust fan system for complete, automatic greenhouse ventilation. Compatible with Riga 2, Riga 3, and Riga 4 greenhouse models, it automatically opens to draw in fresh air and closes to block insects and debris when the fan is off.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise fit:\u003c\/strong\u003e Requires a 16.25\" × 16.25\" rough opening — sized for Riga greenhouse wall panels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal placement:\u003c\/strong\u003e Install high in the lowest front-wall panel, directly opposite the exhaust fan, for effective cross-ventilation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-play installation:\u003c\/strong\u003e Pre-wired with a 9-foot power cord — no hardwiring or electrician required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorized shutters:\u003c\/strong\u003e Automatically open for airflow and close when idle to block pests and debris\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear-round performance:\u003c\/strong\u003e Supports consistent temperature control and air circulation in all seasons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eComplete Your Ventilation System\u003c\/h2\u003e\n\u003cp\u003eFor a fully automated setup, pair this intake vent with a compatible \u003cstrong\u003eexhaust fan\u003c\/strong\u003e and a \u003cstrong\u003ethermostat controller\u003c\/strong\u003e. Together, they regulate temperature and humidity automatically — no manual adjustments needed.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eDesigned for \u003cstrong\u003eRiga 2, Riga 3, and Riga 4\u003c\/strong\u003e greenhouse models. Requires a 16.25\" × 16.25\" wall opening.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent size:\u003c\/strong\u003e 16\" (requires 16.25\" × 16.25\" opening)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower cord:\u003c\/strong\u003e 9 feet, pre-wired (plug-in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Motorized, automatic open\/close\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible models:\u003c\/strong\u003e Riga 2, Riga 3, Riga 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e VRSG16A-PSC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat size opening does this vent require?\u003c\/h3\u003e\n\u003cp\u003eThe 16\" intake shutter vent requires a \u003cstrong\u003e16.25\" × 16.25\" opening\u003c\/strong\u003e in your greenhouse wall panel.\u003c\/p\u003e\n\u003ch3\u003eDoes it need to be hardwired by an electrician?\u003c\/h3\u003e\n\u003cp\u003eNo. It comes pre-wired with a 9-foot power cord and simply plugs into a standard outlet — no hardwiring required.\u003c\/p\u003e\n\u003ch3\u003eWhere should I install the intake vent?\u003c\/h3\u003e\n\u003cp\u003eFor best results, install it high in the \u003cstrong\u003elowest panel of the front wall\u003c\/strong\u003e, on the opposite side from your exhaust fan. This creates effective cross-ventilation and maximizes airflow through the greenhouse.\u003c\/p\u003e\n\u003ch3\u003eWhich Riga greenhouse models is this compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis vent is compatible with \u003cstrong\u003eRiga 2, Riga 3, and Riga 4\u003c\/strong\u003e models.\u003c\/p\u003e\n\u003ch3\u003eCan I use this without an exhaust fan?\u003c\/h3\u003e\n\u003cp\u003eThe vent is motorized and designed to work in tandem with an exhaust fan system. It can be used independently, but pairing it with an exhaust fan and thermostat delivers the best automatic ventilation performance.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59770636337438,"sku":"VRSG16A-PSC","price":340.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/in-take_1.webp?v=1786648234"},{"product_id":"20-inch-intake-shutter-vent-riga-greenhouses","title":"20\" Intake Shutter Vent for Riga Greenhouses","description":"\u003cp\u003eThe 20\" Intake Shutter Vent is a motorized intake vent built for larger greenhouse structures. Compatible with Riga 5 models, it automatically opens to draw in fresh air and closes to block insects and debris when the exhaust fan is off — delivering hands-free climate control for bigger growing spaces.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise fit:\u003c\/strong\u003e Requires a 20.25\" × 20.25\" rough opening — sized for Riga 5 and Victorian VI wall panels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal placement:\u003c\/strong\u003e Install high in the lowest front-wall panel, directly opposite the exhaust fan, for maximum cross-ventilation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-play installation:\u003c\/strong\u003e Pre-wired with a 9-foot power cord — no hardwiring or electrician required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorized shutters:\u003c\/strong\u003e Automatically open for airflow and close when idle to block pests and debris\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for larger structures:\u003c\/strong\u003e Sized to move the higher air volume needed in Riga 5 and Victorian VI greenhouses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eComplete Your Ventilation System\u003c\/h2\u003e\n\u003cp\u003eFor fully automatic climate control, pair this intake vent with a compatible \u003cstrong\u003e16\" or 20\" exhaust fan\u003c\/strong\u003e and a \u003cstrong\u003ethermostat controller\u003c\/strong\u003e. Together they regulate temperature and humidity automatically — no manual adjustments needed, even on the hottest days.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eDesigned for \u003cstrong\u003eRiga 5\u003c\/strong\u003e and \u003cstrong\u003eJanssens Victorian VI 34, 38, 42, and 46\u003c\/strong\u003e greenhouse models. Requires a 20.25\" × 20.25\" wall opening.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent size:\u003c\/strong\u003e 20\" (requires 20.25\" × 20.25\" opening)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower cord:\u003c\/strong\u003e 9 feet, pre-wired (plug-in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Motorized, automatic open\/close\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible models:\u003c\/strong\u003e Riga 5, Janssens Victorian VI 34–46\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e VRSG20A-PSC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat size opening does this vent require?\u003c\/h3\u003e\n\u003cp\u003eThe 20\" intake shutter vent requires a \u003cstrong\u003e20.25\" × 20.25\" opening\u003c\/strong\u003e in your greenhouse wall panel.\u003c\/p\u003e\n\u003ch3\u003eDoes it need to be hardwired by an electrician?\u003c\/h3\u003e\n\u003cp\u003eNo. It comes pre-wired with a 9-foot power cord and plugs into a standard outlet — no hardwiring required.\u003c\/p\u003e\n\u003ch3\u003eWhere should I install the intake vent?\u003c\/h3\u003e\n\u003cp\u003eFor best results, install it high in the \u003cstrong\u003elowest panel of the front wall\u003c\/strong\u003e, on the opposite side from your exhaust fan. This creates effective cross-ventilation and maximizes airflow through the greenhouse.\u003c\/p\u003e\n\u003ch3\u003eWhich greenhouse models is this compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis vent is compatible with \u003cstrong\u003eRiga 5\u003c\/strong\u003e and \u003cstrong\u003eJanssens Victorian VI 34, 38, 42, and 46\u003c\/strong\u003e models.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between the 16\" and 20\" intake vents?\u003c\/h3\u003e\n\u003cp\u003eThe 20\" vent is sized for larger greenhouse structures — specifically Riga 5 and Victorian VI models — which require a bigger opening and higher airflow capacity than the Riga 2, 3, and 4 models served by the 16\" vent.\u003c\/p\u003e\n\u003ch3\u003eCan I use this without an exhaust fan?\u003c\/h3\u003e\n\u003cp\u003eThe vent is motorized and designed to work in tandem with an exhaust fan system. Pairing it with an exhaust fan and thermostat delivers the best automatic ventilation performance.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59770638303518,"sku":"VRSG20A-PSC","price":360.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/in-take_2.webp?v=1786648234"},{"product_id":"24-inch-intake-shutter-vent-riga-xl-greenhouses","title":"24\" Intake Shutter Vent for Riga XL Greenhouses","description":"\u003cp\u003eThe 24\" Intake Shutter Vent is a high-capacity motorized intake vent engineered for the largest Riga greenhouse structures. Built for the Riga XL series, it automatically opens to draw in the high volume of fresh air these large greenhouses demand, and closes to block insects and debris when the exhaust fan is off.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise fit:\u003c\/strong\u003e Requires a 24.25\" × 24.25\" rough opening — sized for Riga XL wall panels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal placement:\u003c\/strong\u003e Install high in the lowest front-wall panel, directly opposite the exhaust fan, for maximum cross-ventilation across the full length of the greenhouse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-play installation:\u003c\/strong\u003e Pre-wired with a 9-foot power cord — no hardwiring or electrician required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorized shutters:\u003c\/strong\u003e Automatically open for airflow and close when idle to block pests and debris\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-capacity airflow:\u003c\/strong\u003e The largest intake vent in the Riga ventilation lineup, matched to the air volume requirements of XL-sized structures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eComplete Your Ventilation System\u003c\/h2\u003e\n\u003cp\u003eFor fully automatic climate control in your Riga XL, pair this intake vent with a \u003cstrong\u003e20\" exhaust fan\u003c\/strong\u003e and a \u003cstrong\u003ethermostat controller\u003c\/strong\u003e. Together they regulate temperature and humidity automatically — essential for maintaining healthy growing conditions in a large greenhouse year-round.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eDesigned for the \u003cstrong\u003eRiga XL series\u003c\/strong\u003e of greenhouses. Requires a 24.25\" × 24.25\" wall opening.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent size:\u003c\/strong\u003e 24\" (requires 24.25\" × 24.25\" opening)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower cord:\u003c\/strong\u003e 9 feet, pre-wired (plug-in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Motorized, automatic open\/close\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible models:\u003c\/strong\u003e Riga XL series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended exhaust fan pairing:\u003c\/strong\u003e 20\" exhaust fan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e VRSG24A-PSC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat size opening does this vent require?\u003c\/h3\u003e\n\u003cp\u003eThe 24\" intake shutter vent requires a \u003cstrong\u003e24.25\" × 24.25\" opening\u003c\/strong\u003e in your Riga XL greenhouse wall panel.\u003c\/p\u003e\n\u003ch3\u003eDoes it need to be hardwired by an electrician?\u003c\/h3\u003e\n\u003cp\u003eNo. It comes pre-wired with a 9-foot power cord and plugs into a standard outlet — no hardwiring required.\u003c\/p\u003e\n\u003ch3\u003eWhere should I install the intake vent in my Riga XL?\u003c\/h3\u003e\n\u003cp\u003eInstall it high in the \u003cstrong\u003elowest panel of the front wall\u003c\/strong\u003e, directly opposite the exhaust fan. This placement creates effective cross-ventilation and maximizes airflow through the full length of the greenhouse.\u003c\/p\u003e\n\u003ch3\u003eWhich exhaust fan should I pair with this vent?\u003c\/h3\u003e\n\u003cp\u003eFor Riga XL greenhouses, pair this 24\" intake vent with a \u003cstrong\u003e20\" exhaust fan\u003c\/strong\u003e and a thermostat controller for a complete automatic ventilation system.\u003c\/p\u003e\n\u003ch3\u003eHow does this compare to the 16\" and 20\" intake vents?\u003c\/h3\u003e\n\u003cp\u003eThe 24\" vent is the largest in the Riga intake vent lineup and is specifically sized for the Riga XL series. The \u003cstrong\u003e16\" vent\u003c\/strong\u003e fits Riga 2, 3, and 4 models, and the \u003cstrong\u003e20\" vent\u003c\/strong\u003e fits Riga 5 and Janssens Victorian VI 34–46 models. Choose the vent that matches your specific greenhouse model.\u003c\/p\u003e\n\u003ch3\u003eCan I use this without an exhaust fan?\u003c\/h3\u003e\n\u003cp\u003eThe vent is motorized and designed to work in tandem with an exhaust fan system. Pairing it with a 20\" exhaust fan and thermostat delivers the best automatic ventilation performance for Riga XL greenhouses.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59770642006302,"sku":"VRSG24A-PSC","price":385.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/in-take_2.webp?v=1786648234"},{"product_id":"riga-automatic-window-opener-1","title":"RIGA Automatic Window Opener with Quick-Release Arm","description":"\u003cdiv\u003e\n\u003cp\u003eKeep your greenhouse at the ideal growing temperature without lifting a finger. The RIGA Automatic Window Opener uses heat-activated paraffin oil technology to open and close roof or side windows automatically — no electricity, no wiring, no manual intervention required.\u003c\/p\u003e\n\u003cp\u003eEngineered specifically for Riga greenhouse models, this opener is the trusted solution for hands-free ventilation that protects plants from overheating and maintains healthy air circulation year-round.\u003c\/p\u003e\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eAs interior temperatures rise, paraffin oil inside the piston expands and pushes the arm open, beginning ventilation at approximately \u003cstrong\u003e72°F (22°C)\u003c\/strong\u003e. As temperatures cool, the oil contracts and the window closes automatically — a fully passive, energy-free cycle that runs every day without any input from you.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat-activated at 72°F\u003c\/strong\u003e — automatic opening triggered by rising greenhouse temperatures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick-release arm\u003c\/strong\u003e — disconnect instantly during high winds, storms, or severe weather to protect the window and opener\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo electricity required\u003c\/strong\u003e — 100% passive operation powered by thermal expansion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstalls on roof or side windows\u003c\/strong\u003e — versatile placement for optimal airflow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable, low-maintenance design\u003c\/strong\u003e — built for long-term reliability in outdoor greenhouse conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAt what temperature does the RIGA Automatic Window Opener activate?\u003c\/strong\u003e\u003cbr\u003eThe opener begins to open at approximately 72°F (22°C) and closes as temperatures drop below that threshold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it require electricity or batteries?\u003c\/strong\u003e\u003cbr\u003eNo. The opener is entirely self-powered using heat-activated paraffin oil — no wiring, batteries, or power source needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the quick-release arm for?\u003c\/strong\u003e\u003cbr\u003eThe quick-release arm lets you manually disconnect the opener during storms or high winds, preventing damage to both the window frame and the opener mechanism.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Riga greenhouse models is it compatible with?\u003c\/strong\u003e\u003cbr\u003eDesigned for Riga greenhouse models — verify window size compatibility for your specific greenhouse before ordering.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the RIGA Automatic Window Opener?\u003c\/h3\u003e\n\u003cp\u003eOverheating is one of the most common causes of plant stress and crop loss in hobby and professional greenhouses. The RIGA Automatic Window Opener provides a reliable, set-and-forget solution that responds to real-time temperature changes — giving your plants consistent ventilation without daily monitoring. Paired with a Riga greenhouse, it's the complete passive climate management system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with:\u003c\/strong\u003e Riga greenhouse models (confirm window compatibility for your specific size and model).\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Riga Greenhouses","offers":[{"title":"Default Title","offer_id":59770860667166,"sku":"RIGA Auto Opener","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_Roof_Vent_Opener.webp?v=1786733836"},{"product_id":"solar-powered-exhaust-fan-kit","title":"Solar Powered Exhaust Fan Kit – 16\" for Greenhouses","description":"\u003cp\u003eThe Exaco Solar Powered Exhaust Fan Kit delivers fully automatic, off-grid ventilation for your greenhouse — no electrical outlet, no hardwiring, and no running costs. Powered entirely by an included 50W solar panel, it runs whenever the sun shines and switches to optional backup battery power when it doesn’t. Available in black only.\u003c\/p\u003e\n\u003ch2\u003eWhy Solar Ventilation Makes Sense for Greenhouses\u003c\/h2\u003e\n\u003cp\u003eGreenhouse temperatures can spike 20–30°F above outdoor levels on sunny days — the same conditions that generate the most solar power. That natural alignment means a solar exhaust fan works hardest exactly when your plants need it most, without drawing a single watt from your home’s electrical system. It’s the ideal solution for greenhouses located away from a power source, or for growers who want a fully self-sufficient growing environment.\u003c\/p\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16\" solar exhaust fan\u003c\/strong\u003e with brushless motor and lifetime motor guarantee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50W high-efficiency solar panel\u003c\/strong\u003e with 20-foot power cord\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostat controller\u003c\/strong\u003e for automatic temperature-based on\/off operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery case\u003c\/strong\u003e for two 12V backup batteries (batteries not included) — enables operation during cloudy periods or at night\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFan\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlade diameter: 16\"\u003c\/li\u003e\n\u003cli\u003eUnit dimensions: 16\" × 16\" × 8.5\" deep\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 12–26V DC\u003c\/li\u003e\n\u003cli\u003eMotor speed: 1,000 RPM\u003c\/li\u003e\n\u003cli\u003eMotor type: Brushless (lifetime guarantee)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSolar Panel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax power output: ~50W\u003c\/li\u003e\n\u003cli\u003eMax power voltage: 25.5V\u003c\/li\u003e\n\u003cli\u003eMax power current: 1.97A\u003c\/li\u003e\n\u003cli\u003eOpen circuit voltage: 30.0V\u003c\/li\u003e\n\u003cli\u003eShort circuit current: 2.1A\u003c\/li\u003e\n\u003cli\u003ePanel dimensions: 29.5\" × 20\" × 1\"\u003c\/li\u003e\n\u003cli\u003eCertification: CE approved\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGreenhouse Compatibility\u003c\/h2\u003e\n\u003cp\u003eBecause this kit uses a 16\" fan, it is physically compatible with all Riga greenhouse models — but it fits some better than others based on greenhouse volume and the fan size each model is designed around.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBest match\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRiga 5\u003c\/strong\u003e — The Riga 5 is the model that normally uses the corded 16\" electric fan, making the solar kit a direct size match. It uses the same 16.25\" × 16.25\" wall opening and delivers optimal airflow for this footprint.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAlso compatible\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRiga 2, 3, 4 \/ 2s, 3s, 4s\u003c\/strong\u003e — The solar kit will work on these models, but they are typically fitted with the smaller 12\" fan. The 16\" unit is slightly oversized for their greenhouse volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRiga XL series (XL 5–9)\u003c\/strong\u003e — The fan will physically fit the same 16.25\" × 16.25\" opening, but XL models are designed for the larger 20\" electric fan. A single 16\" solar kit may be underpowered for the biggest XL structures; some dealers recommend using two solar kits on very large XL units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExaco and authorized dealers describe the solar kit as usable on “any greenhouse, including Riga models.” There is no official restriction limiting it to a single size — the key variable is matching fan capacity to greenhouse volume.\u003c\/p\u003e\n\u003ch2\u003eInstallation Overview\u003c\/h2\u003e\n\u003cp\u003eMount the 16\" fan high on the back wall of your greenhouse (requires a 16.25\" × 16.25\" opening). Position the solar panel on the roof or an adjacent south-facing surface with the 20-foot cord reaching the fan. Connect the thermostat between the panel and fan to enable automatic temperature control. Optionally install backup batteries in the included battery case for cloudy-day and nighttime operation.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Riga greenhouse models is this solar fan kit compatible with?\u003c\/strong\u003e\u003cbr\u003eThe kit is compatible with all Riga models. It is the best match for the Riga 5, which is designed around a 16\" fan. It also works on Riga 2, 3, and 4 models (though those are typically fitted with a 12\" fan) and on Riga XL series models (though XL units are designed for a 20\" fan — very large XL structures may benefit from two solar kits).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the solar fan work on cloudy days?\u003c\/strong\u003e\u003cbr\u003eIn direct sun the fan runs at full speed. On overcast days output is reduced. Adding two 12V backup batteries (not included) to the included battery case allows the fan to continue operating when solar input is low or at night.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size wall opening does this fan require?\u003c\/strong\u003e\u003cbr\u003eThe fan requires a 16.25\" × 16.25\" square opening, the same as the corded 16\" exhaust fan.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with a thermostat?\u003c\/strong\u003e\u003cbr\u003eYes. A thermostat controller is included in the kit and enables automatic on\/off operation based on your set temperature threshold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need an electrician to install it?\u003c\/strong\u003e\u003cbr\u003eNo. The system runs on 12–26V DC from the solar panel — low-voltage DC that does not require a licensed electrician for installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the motor warranty?\u003c\/strong\u003e\u003cbr\u003eThe brushless motor carries a lifetime guarantee. The kit is manufactured by a factory with a long track record producing exhaust fans for major retailers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this compare to the corded 16\" exhaust fan?\u003c\/strong\u003e\u003cbr\u003eBoth use a 16\" blade and require the same wall opening. The solar kit adds a 50W panel, thermostat, and battery case for fully off-grid operation, making it ideal for greenhouses without a nearby power outlet. The corded fan ($370) is the lower-cost option when a standard outlet is available.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59770874790174,"sku":"Exaco Solar Ex B","price":849.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/solar-exhaust-1.webp?v=1786656855"},{"product_id":"boss-157-neutral-cure-silicon","title":"Boss 157 Neutral Cure Silicon","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eBoss 157 Neutral Cure Silicone Sealer – Clear\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe ideal silicone for sealing polycarbonate panels in aluminum greenhouse framing. Boss 157 is a 100% neutral-cure silicone that creates a long-lasting, weather-tight seal around panel edges to block cold, rain, heat, and sunlight.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Features\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect for greenhouse construction\u003c\/strong\u003e: Specifically recommended for sealing polycarbonate panels inserted into aluminum frames\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% neutral cure\u003c\/strong\u003e: Safe for use on polycarbonate and aluminum without damaging materials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow odor\u003c\/strong\u003e: More pleasant to work with than traditional acetoxy silicones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet-weather application\u003c\/strong\u003e: Can be applied even in damp conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear finish\u003c\/strong\u003e: Blends cleanly with polycarbonate and aluminum for a professional look\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMade in the USA\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eUse Boss 157 to seal panel edges, joints, and gaps for a durable, weatherproof greenhouse that stays tighter against the elements year-round.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59770887536926,"sku":"Boss 157","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/BOSSSilicone.webp?v=1786657891"},{"product_id":"light-my-shed-4-solar-powered-led-greenhouse-light-kit-gs-16b02","title":"Light My Shed 4 – Solar Powered LED Greenhouse Light Kit - GS-16B02","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eLight My Shed 4 – Solar Powered LED Greenhouse Light Kit \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eSolar-powered lighting for your greenhouse with no electrical wiring required. The Light My Shed 4 kit includes one solar panel and two LED lights, delivering bright, reliable illumination after a sunny day.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Features\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar panel\u003c\/strong\u003e: 3-watt (80 mA) panel mounted outside on an adjustable arm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBright output\u003c\/strong\u003e: Produces 250 lumens for up to 4 hours after an average sunny day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor temperature\u003c\/strong\u003e: 6000K bright white light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery\u003c\/strong\u003e: Rechargeable Ni-MH 4.8V 2000 mAh battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight dome\u003c\/strong\u003e: 6\" diameter × 7\" high LED housing mounted inside the greenhouse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy connection\u003c\/strong\u003e: 9-foot wire between solar panel and lights\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: Limited 2-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eIdeal for growers who want simple, off-grid lighting to extend work time in the greenhouse during early mornings or evenings without running power cords.\u003c\/p\u003e","brand":"Gama Sonic","offers":[{"title":"Default Title","offer_id":59777329070366,"sku":"GS-16B02","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/shed-light-6.webp?v=1786732857"},{"product_id":"greenhouse-misting-system","title":"Greenhouse Misting System","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eGreenhouse Misting System – 14' with 5 Misters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eEasy-to-install misting system that helps increase humidity and gently cool your greenhouse. Standard equipment with Royal Victorian greenhouses and fully compatible with most other greenhouse models.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Features\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 14 feet — ideal for greenhouses up to 20' long; can be cut shorter for smaller structures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoverage\u003c\/strong\u003e: Includes 5 misters for even moisture distribution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible shipping\u003c\/strong\u003e: Ships in 2 pieces with a connector for easy UPS\/FedEx delivery and simple on-site assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile use\u003c\/strong\u003e: Designed as standard equipment for Royal Victorian greenhouses but works well in most other greenhouse brands and sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003ePerfect for growers looking to raise humidity levels, reduce plant stress, and provide light cooling during warmer weather. Simply install along the greenhouse length and connect to a water source.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59777417543966,"sku":"VI-BER","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/misting-kit.webp?v=1786736322"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/collections\/riga_ventilation.jpg?v=1782510530","url":"https:\/\/rigagreenhousekit.com\/collections\/riga-accessories.oembed?page=2","provider":"Riga Greenhouses","version":"1.0","type":"link"}