{"product_id":"riga-iii-9x10-greenhouse","title":"Riga 3 9x10 Greenhouse","description":"\u003ch2\u003e\u003cstrong\u003eRiga III (Riga 3) 9x10 Greenhouse\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRiga III\u003c\/strong\u003e is the standard-width model in the Riga series — wider and taller than the Riga IIIs, with 102 sq ft of growing area in a space-efficient footprint that fits comfortably in smaller yards and urban gardens. Designed, engineered, and manufactured in Germany by Exaco with 28 years of experience, the Riga III is built for serious year-round growing, not just season extension. The signature “onion” arch profile sheds snow automatically, maximizes interior headroom, and minimizes wind resistance — tested against winds up to 100 mph and never blown away when properly anchored.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eWhat’s Included — Basic Package\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e8mm UV-coated translucent twin-wall polycarbonate panels — sides and roof\u003c\/li\u003e\n\u003cli\u003e10mm translucent twin-wall polycarbonate panels — front and rear gables (added strength)\u003c\/li\u003e\n\u003cli\u003e1 roof window (40\" W × 24\" D) with automatic opener\u003c\/li\u003e\n\u003cli\u003e1 oversized rear wall window (30\" W × 42\" H) with adjustment arm\u003c\/li\u003e\n\u003cli\u003eHeavy-duty Dutch barn-style door with keyed lock (30\" W × 72\" H)\u003c\/li\u003e\n\u003cli\u003eFirst-class insulation — R\/K-value up to 1.89\u003c\/li\u003e\n\u003cli\u003e15-year warranty on aluminum frame\u003c\/li\u003e\n\u003cli\u003e10-year pro-rated warranty on polycarbonate panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuild Your Package — Available Add-Ons\u003c\/h3\u003e\n\u003cp\u003eConfigure your Riga III using the options above. Each add-on is included in the same shipment:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eOption\u003c\/th\u003e\n\u003cth\u003eWhat It Does\u003c\/th\u003e\n\u003cth\u003eAdded Cost\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnchor Option\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnchoring hardware to secure the greenhouse to a concrete pad or foundation\u003c\/td\u003e\n\u003ctd\u003e+$99.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBase Kit (Foundation Frame)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6\" H × 116\" W × 126\" D ground-installation frame; buried in trench and backfilled with soil to anchor the greenhouse and add interior height. Strongly recommended for soil\/lawn installations.\u003c\/td\u003e\n\u003ctd\u003e+$1,299.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePremium Upgrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUpgrades glazing or components to premium specification — contact us for details on what’s included in the current premium upgrade\u003c\/td\u003e\n\u003ctd\u003eSee pricing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eRiga Series Comparison — Which Model Is Right for You?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003cth\u003eArea\u003c\/th\u003e\n\u003cth\u003eExpandable\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e7'4\"\u003c\/td\u003e\n\u003ctd\u003e7'\u003c\/td\u003e\n\u003ctd\u003e7'\u003c\/td\u003e\n\u003ctd\u003e~48 sq ft\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e7'4\"\u003c\/td\u003e\n\u003ctd\u003e10'4\"\u003c\/td\u003e\n\u003ctd\u003e7'\u003c\/td\u003e\n\u003ctd\u003e~72 sq ft\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRiga III (this model)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e9'8\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10'6\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e7'7\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e102 sq ft\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNo\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IVs\u003c\/td\u003e\n\u003ctd\u003e9'8\"\u003c\/td\u003e\n\u003ctd\u003e13'10\"\u003c\/td\u003e\n\u003ctd\u003e7'7\"\u003c\/td\u003e\n\u003ctd\u003e~130 sq ft\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e9'8\"\u003c\/td\u003e\n\u003ctd\u003e13'10\"\u003c\/td\u003e\n\u003ctd\u003e7'7\"\u003c\/td\u003e\n\u003ctd\u003e~130 sq ft\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga V\u003c\/td\u003e\n\u003ctd\u003e9'8\"\u003c\/td\u003e\n\u003ctd\u003e17'6\"\u003c\/td\u003e\n\u003ctd\u003e7'7\"\u003c\/td\u003e\n\u003ctd\u003e165 sq ft\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL series\u003c\/td\u003e\n\u003ctd\u003e9'8\"\u003c\/td\u003e\n\u003ctd\u003eUp to 30'+\u003c\/td\u003e\n\u003ctd\u003e7'7\"\u003c\/td\u003e\n\u003ctd\u003eUp to 300+ sq ft\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe Riga III is the entry point to the 9'8\" wide Riga series — wider and taller than the IIs\/IIIs models, with the same premium German construction. If you need more length, the Riga IVs, IV, and V extend the same 9'8\" width footprint.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Riga III and the Riga IIIs?\u003c\/strong\u003e\u003cbr\u003eThe Riga IIIs (7'4\" wide × 10'4\" long × 7' tall, ~72 sq ft) is narrower and shorter than the Riga III (9'8\" wide × 10'6\" long × 7'7\" tall, 102 sq ft). The Riga III is the entry point to the wider 9'8\" Riga series, offering significantly more interior headroom and working width. Both are non-expandable and use the same German manufacturing and polycarbonate glazing system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need the base kit (foundation frame)?\u003c\/strong\u003e\u003cbr\u003eThe base kit is strongly recommended for soil or lawn installations. It is a 6\" H × 116\" W × 126\" D aluminum frame that is buried in a trench and backfilled with soil to anchor the greenhouse and raise the interior height by 6\". Without a proper foundation, the greenhouse may shift over time and the warranty may be affected. If you are installing on an existing concrete pad, the anchor option may be more appropriate than the base kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the automatic roof opener work?\u003c\/strong\u003e\u003cbr\u003eThe automatic roof opener uses a wax-cylinder mechanism that expands and contracts with temperature changes — no electricity required. When the interior temperature rises above a set threshold (typically around 65–70°F), the opener automatically pushes the roof window open to ventilate. When the temperature drops, it closes automatically. It requires no power and no manual adjustment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the Riga III handle heavy snow loads?\u003c\/strong\u003e\u003cbr\u003eYes — the “onion” arch profile is specifically designed to shed snow. Snow slides off the curved surface rather than accumulating, which prevents the structural loading that causes flat or low-pitch greenhouse roofs to collapse. The Riga III has been tested against winds up to 100 mph and has never been blown away when properly anchored with the base kit or anchor option.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does assembly take?\u003c\/strong\u003e\u003cbr\u003eAssembly takes approximately one full day for two people. Written instructions are included. The Riga assembly facilitation kit (metric tape, 10mm wrenches, ratchet straps, Boss 399 silicone caulk, window restraint cables) is available separately and contains all the specialized tools needed for the build.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Riga III expandable?\u003c\/strong\u003e\u003cbr\u003eNo — the Riga III is a fixed-length model and cannot be extended. If you anticipate needing more space in the future, consider the Riga XL series, which is designed to be expandable by adding additional sections.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"No - Skip Foundation Frame \/ No Upgrade","offer_id":59734408855838,"sku":"RIGA-III-NOBASE","price":5399.0,"currency_code":"USD","in_stock":false},{"title":"No - Skip Foundation Frame \/ Add Premium Upgrade","offer_id":59734408888606,"sku":"RIGA-III-UPG-NOBASE","price":7499.0,"currency_code":"USD","in_stock":false},{"title":"Yes \/ No Upgrade","offer_id":59517635461406,"sku":"RIGA-III-FREEBASE","price":5399.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Add Premium Upgrade","offer_id":59517635428638,"sku":"RIGA-III-UPG-FREEBASE","price":7499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_3.1.webp?v=1786470063","url":"https:\/\/rigagreenhousekit.com\/products\/riga-iii-9x10-greenhouse","provider":"Riga Greenhouses","version":"1.0","type":"link"}