{"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","url":"https:\/\/rigagreenhousekit.com\/products\/riga-xl-9-professional-greenhouse","provider":"Riga Greenhouses","version":"1.0","type":"link"}