{"title":"Riga XL Greenhouses","description":"\u003cp\u003e\u003cspan\u003eThe Riga XL (Extra Large) Greenhouses - Featuring the amazingly insulating 16 mm polycarbonate. This is the largest commercial quality hobby-kit type offered by Riga and is a fantastic choice for the truly serious gardener. The Riga Extra Large Greenhouses come standard with Triple Wall Polycarbonate with a 10 year warranty. It features 16 mm UV coated TRIPLE-wall Polycarbonate Glazing, 10 MM twin wall polycarbonate in front \u0026amp; back walls for extra strength. Also includes: 4 ea. large roof windows: 37.5\" W x 39.5\" L, large Dutch style doors: 37.5\" W x 74\" H, and standard automatic roof openers. The Riga XL greenhouse is attractive and beautiful to look at – and will definitely fit in well to an upscale garden setting.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"riga-xl-9-professional-greenhouse","title":"Riga XL 9 14 x 29 Greenhouse","description":"\u003ch2\u003e\u003cstrong\u003eRiga XL 9 Greenhouse — 14’ × 29’6” | 413 sq ft | Professional-Grade\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRiga XL 9\u003c\/strong\u003e is the largest model in the Riga XL series — 413 sq ft of growing area in a 14-foot wide, 9'10\" tall structure with \u003cstrong\u003e8 automatic roof openers\u003c\/strong\u003e for full-length ventilation control. Built for serious gardeners, plant enthusiasts, schools, and small commercial growers who need maximum capacity and professional-grade winter performance. Like all Riga XL models, it features 16mm triple-wall polycarbonate glazing (R\/K-value up to 2.5), two Dutch doors (front and rear), and is expandable by adding additional sections. Designed, engineered, and manufactured in Germany by Exaco with 28 years of experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShips in 1–2 weeks.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\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\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16mm UV-coated triple-wall polycarbonate glazing\u003c\/strong\u003e — significantly higher insulation than standard twin-wall models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 roof windows\u003c\/strong\u003e with automatic openers — full-length ventilation control\u003c\/li\u003e\n\u003cli\u003eTwo wide Dutch barn-style doors with keyed locks (37.5\" W × 74\" H) — one front, one rear\u003c\/li\u003e\n\u003cli\u003eFirst-class insulation — R\/K-value up to 2.5\u003c\/li\u003e\n\u003cli\u003eExtremely heavy-duty aluminum frame construction\u003c\/li\u003e\n\u003cli\u003e15-year warranty on aluminum frame\u003c\/li\u003e\n\u003cli\u003e10-year pro-rated warranty on polycarbonate panels (pro-rated after year 5)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuild Your Package — Available Add-Ons\u003c\/h3\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\u003eBase Kit (Foundation Frame)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty I-beam foundation frame; buried in trench and backfilled to anchor the greenhouse and add interior height. Strongly recommended for soil\/lawn installations.\u003c\/td\u003e\n\u003ctd\u003e+$3,149.00\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\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\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eRiga XL Series Comparison — XL 6 vs. XL 9\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/riga-xl-6-professional-greenhouse\"\u003eRiga XL 6\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003eRiga XL 9 (this model)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e19'10\"\u003c\/td\u003e\n\u003ctd\u003e29'6\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrowing Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e280 sq ft\u003c\/td\u003e\n\u003ctd\u003e413 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoof Windows\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 (auto openers)\u003c\/td\u003e\n\u003ctd\u003e8 (auto openers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBase Kit Cost\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+$2,199\u003c\/td\u003e\n\u003ctd\u003e+$3,149\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStarting Price\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$18,499\u003c\/td\u003e\n\u003ctd\u003e$22,999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBest For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLarge home gardens; serious hobbyists\u003c\/td\u003e\n\u003ctd\u003eMaximum capacity; schools; small commercial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eBoth XL models share the same 14' width, 9'10\" peak height, 16mm triple-wall glazing, R\/K-value 2.5, and two Dutch doors. The XL 9 adds 9'8\" of length, 133 sq ft of growing area, and 4 additional automatic roof openers. Both are expandable by adding sections.\u003c\/p\u003e\n\u003ch3\u003eRiga XL vs. Standard Riga Series\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eRiga XL 9 (this model)\u003c\/th\u003e\n\u003cth\u003eStandard Riga (e.g., \u003ca href=\"\/products\/riga-iv-9x14-greenhouse\"\u003eRiga IV\u003c\/a\u003e)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGlazing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16mm triple-wall polycarbonate\u003c\/td\u003e\n\u003ctd\u003e8mm twin-wall (sides\/roof)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation R\/K-Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 2.5\u003c\/td\u003e\n\u003ctd\u003eUp to 1.89\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 feet\u003c\/td\u003e\n\u003ctd\u003eUp to 9'8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9'10\"\u003c\/td\u003e\n\u003ctd\u003e7'7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrowing Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e413 sq ft\u003c\/td\u003e\n\u003ctd\u003eUp to 165 sq ft (Riga V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoof Windows\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 (auto openers)\u003c\/td\u003e\n\u003ctd\u003e1–2 (auto openers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDoors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Dutch doors (front + rear)\u003c\/td\u003e\n\u003ctd\u003e1 Dutch door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExpandable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does the Riga XL 9 have 8 roof windows?\u003c\/strong\u003e\u003cbr\u003eThe 29'6\" length of the Riga XL 9 requires 8 automatic roof openers to provide adequate ventilation across the full interior. Each opener covers a section of the greenhouse, allowing independent temperature regulation along the full length. Without sufficient roof ventilation, the far ends of a long greenhouse can overheat on warm days even when the center is comfortable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Riga XL 9 suitable for schools and educational programs?\u003c\/strong\u003e\u003cbr\u003eYes — the Riga XL 9 is well-suited for school greenhouse programs, horticultural education, and community growing projects. The 413 sq ft interior provides ample space for multiple growing stations, the 9'10\" peak height accommodates tall plants and vertical growing systems, and the front and rear Dutch doors allow easy access from both ends for classroom groups. The 15-year frame warranty and professional-grade construction make it a sound long-term investment for institutional use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Riga XL 9 and the Riga XL 6?\u003c\/strong\u003e\u003cbr\u003eBoth models share the same 14' width, 9'10\" peak height, 16mm triple-wall glazing, R\/K-value 2.5, and two Dutch doors. The XL 9 is 9'8\" longer (29'6\" vs. 19'10\"), adds 133 sq ft of growing area (413 vs. 280 sq ft), and includes 8 automatic roof openers vs. 4. The XL 9 base kit costs $3,149 vs. $2,199 for the XL 6. Choose the XL 6 if 280 sq ft meets your needs; choose the XL 9 for maximum capacity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Riga XL 9 expandable?\u003c\/strong\u003e\u003cbr\u003eYes — the Riga XL series is designed to be expanded by adding additional sections. Contact us to discuss expansion options and pricing for your specific configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need the base kit?\u003c\/strong\u003e\u003cbr\u003eThe heavy-duty I-beam base kit (+$3,149) is strongly recommended for soil or lawn installations. It provides a robust foundation appropriate for the large footprint and heavy construction of the XL 9. If installing on an existing concrete pad, contact us to discuss anchoring options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does assembly take?\u003c\/strong\u003e\u003cbr\u003eAssembly requires 2–3 people and approximately 2 full days. Written instructions are included. Due to the scale and weight of the XL 9 components, we recommend 3 people and the Riga assembly facilitation kit (metric tape, 10mm wrenches, ratchet straps, Boss 399 silicone caulk, window restraint cables), available separately.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"No - Skip Foundation Frame \/ No Upgrade","offer_id":59517634609438,"sku":"RIGA-XL-9","price":22999.0,"currency_code":"USD","in_stock":true},{"title":"No - Skip Foundation Frame \/ Add Premium Upgrade","offer_id":59517634576670,"sku":"RIGA-XL-9-UPG","price":26798.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ No Upgrade","offer_id":59517634543902,"sku":"RIGA-XL-9-BASE","price":26148.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Add Premium Upgrade","offer_id":59517634511134,"sku":"RIGA-XL-9-UPG-BASE","price":29947.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_XL_7.1.jpg?v=1786475564"},{"product_id":"riga-xl-6-professional-greenhouse","title":"Riga XL 6 14 x 19 Greenhouse","description":"\u003ch2\u003e\u003cstrong\u003eRiga XL 6 Greenhouse — 14’ × 19’10” | 280 sq ft | Professional-Grade\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRiga XL 6\u003c\/strong\u003e is the entry point to the Riga XL series — a professional-grade, large-format greenhouse engineered for serious growers, serious hobbyists, and small-scale commercial operations. At 280 sq ft with 9'10\" of peak headroom, it is a fundamentally different product from the standard Riga series: \u003cstrong\u003e16mm triple-wall polycarbonate glazing\u003c\/strong\u003e (vs. 8mm twin-wall on the standard Riga), \u003cstrong\u003e4 automatic roof openers\u003c\/strong\u003e, \u003cstrong\u003etwo Dutch doors\u003c\/strong\u003e (front and rear), and an insulation R\/K-value of up to 2.5 (vs. 1.89 on the standard series). Designed, engineered, and manufactured in Germany by Exaco with 28 years of experience. Expandable — additional sections can be added to increase length.\u003c\/p\u003e\n\u003ch3\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\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16mm UV-coated triple-wall polycarbonate glazing\u003c\/strong\u003e — significantly higher insulation than standard twin-wall models\u003c\/li\u003e\n\u003cli\u003e4 roof windows with automatic openers\u003c\/li\u003e\n\u003cli\u003eTwo wide Dutch barn-style doors with keyed locks (37.5\" W × 74\" H) — one front, one rear\u003c\/li\u003e\n\u003cli\u003eFirst-class insulation — R\/K-value up to 2.5\u003c\/li\u003e\n\u003cli\u003eExtremely heavy-duty aluminum frame construction\u003c\/li\u003e\n\u003cli\u003e15-year warranty on aluminum frame\u003c\/li\u003e\n\u003cli\u003e10-year pro-rated warranty on polycarbonate panels (pro-rated after year 5)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuild Your Package — Available Add-Ons\u003c\/h3\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\u003eBase Kit (Foundation Frame)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty I-beam foundation frame; buried in trench and backfilled to anchor the greenhouse and add interior height. Strongly recommended for soil\/lawn installations.\u003c\/td\u003e\n\u003ctd\u003e+$2,199.00\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\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\n\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eRiga XL vs. Standard Riga Series — Key Differences\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eRiga XL 6 (this model)\u003c\/th\u003e\n\u003cth\u003eStandard Riga (e.g., \u003ca href=\"\/products\/riga-iv-9x14-greenhouse\"\u003eRiga IV\u003c\/a\u003e)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGlazing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16mm triple-wall polycarbonate\u003c\/td\u003e\n\u003ctd\u003e8mm twin-wall (sides\/roof)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation R\/K-Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 2.5\u003c\/td\u003e\n\u003ctd\u003eUp to 1.89\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 feet\u003c\/td\u003e\n\u003ctd\u003eUp to 9'8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9'10\"\u003c\/td\u003e\n\u003ctd\u003e7'7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrowing Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e280 sq ft\u003c\/td\u003e\n\u003ctd\u003eUp to 165 sq ft (Riga V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoof Windows\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 (auto openers)\u003c\/td\u003e\n\u003ctd\u003e1–2 (auto openers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDoors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Dutch doors (front + rear)\u003c\/td\u003e\n\u003ctd\u003e1 Dutch door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExpandable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAssembly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2–3 people, ~2 days\u003c\/td\u003e\n\u003ctd\u003e2 people, ~1 day\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStarting Price\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$18,499\u003c\/td\u003e\n\u003ctd\u003eFrom $5,939\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe Riga XL series is not simply a larger version of the standard Riga — it is a different product tier with heavier construction, superior glazing, and significantly more interior volume. The 9'10\" peak height allows full-size fruit trees, tall tomato cages, and standing-height work throughout the entire interior.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes the Riga XL different from the standard Riga series?\u003c\/strong\u003e\u003cbr\u003eThe Riga XL uses 16mm triple-wall polycarbonate glazing (vs. 8mm twin-wall on the standard series), achieving an R\/K-value of up to 2.5 vs. 1.89. It is 14 feet wide (vs. 7'4\"–9'8\" for standard models), 9'10\" tall (vs. 7'–7'7\"), has 4 automatic roof openers (vs. 1–2), two Dutch doors (vs. one), and is expandable by adding sections. It requires 2–3 people and approximately 2 days to assemble. The Riga XL is designed for growers who need professional-grade performance, maximum interior volume, and long-term expandability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Riga XL 6 expandable?\u003c\/strong\u003e\u003cbr\u003eYes — unlike the standard Riga series (which are all fixed-length), the Riga XL series is designed to be expanded by adding additional sections. Contact us to discuss expansion options and pricing for your specific configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between 16mm triple-wall and 8mm twin-wall polycarbonate?\u003c\/strong\u003e\u003cbr\u003eTriple-wall polycarbonate has three layers of material with two air channels, vs. twin-wall’s two layers and one air channel. The additional layer significantly improves insulation — the Riga XL achieves R\/K-value up to 2.5 vs. 1.89 for the standard Riga series. This translates to lower heating costs in winter and better temperature stability year-round. The 16mm thickness also provides greater structural rigidity and impact resistance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does the Riga XL have two Dutch doors?\u003c\/strong\u003e\u003cbr\u003eThe 14-foot width and 280 sq ft interior of the Riga XL 6 benefits from front and rear access for workflow efficiency — bringing in supplies from one end and moving harvests out the other without navigating the full length of the greenhouse. The rear door also provides additional ventilation options independent of the roof windows.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need the base kit?\u003c\/strong\u003e\u003cbr\u003eThe heavy-duty I-beam base kit (+$2,199) is strongly recommended for soil or lawn installations. It provides a more robust foundation than the standard Riga base kits, appropriate for the larger footprint and heavier construction of the XL series. If installing on an existing concrete pad, contact us to discuss anchoring options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does assembly take?\u003c\/strong\u003e\u003cbr\u003eAssembly requires 2–3 people and approximately 2 full days. Written instructions are included. Due to the larger scale and heavier components of the XL series, we recommend having 3 people for the assembly and using the Riga assembly facilitation kit (metric tape, 10mm wrenches, ratchet straps, Boss 399 silicone caulk, window restraint cables), available separately.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"No - Skip Foundation Frame \/ No Upgrade","offer_id":59517634740510,"sku":"RIGA-XL-6","price":18499.0,"currency_code":"USD","in_stock":true},{"title":"No - Skip Foundation Frame \/ Add Premium Upgrade","offer_id":59517634707742,"sku":"RIGA-XL-6-UPG","price":21599.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ No Upgrade","offer_id":59517634674974,"sku":"RIGA-XL-6-BASE","price":20698.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Add Premium Upgrade","offer_id":59517634642206,"sku":"RIGA-XL-6-UPG-BASE","price":23798.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/Riga_XL_7.1.jpg?v=1786475564"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/collections\/rigaxl_5_1_1.jpg?v=1782508403","url":"https:\/\/rigagreenhousekit.com\/collections\/riga-xl-series-greenhouses.oembed","provider":"Riga Greenhouses","version":"1.0","type":"link"}