{"product_id":"grandio-greenhouses-summit-12x28","title":"Grandio Greenhouses Summit 12x28","description":"\u003ch3 class=\"features-heading\"\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/grandiogreenhouses.com\/cdn\/shop\/files\/barbell_icon_a00bb9bf-467c-402f-a792-33e476a4e737.png?v=1773964924\u0026amp;width=64\" alt=\"Heavy-Duty Construction \u0026amp; Rust Proof\" width=\"64\" height=\"64\" loading=\"lazy\"\u003e\u003cspan class=\"feature-text\"\u003eHeavy-Duty Construction \u0026amp; Rust Proof\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/grandiogreenhouses.com\/cdn\/shop\/files\/thermometer_icon_da48a2c5-fab4-456d-8dcd-e870b92d5e23.png?v=1773964925\u0026amp;width=64\" alt=\"Exceptional Year-Round Insulation\" width=\"64\" height=\"64\" loading=\"lazy\"\u003e\u003cspan class=\"feature-text\"\u003eExceptional Year-Round Insulation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/grandiogreenhouses.com\/cdn\/shop\/files\/house_icon_15b1fa68-5d02-4819-8cc3-9cf823d73b8b.png?v=1773964925\u0026amp;width=64\" alt=\"Impressive 9.25' Peak Height Maximum Headroom \u0026amp; Vertical Space\" width=\"64\" height=\"64\" loading=\"lazy\"\u003e\u003cspan class=\"feature-text\"\u003eImpressive 9.25' Peak Height Maximum Headroom \u0026amp; Vertical Space\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/grandiogreenhouses.com\/cdn\/shop\/files\/ventilation_icon_feb4fc0c-0e1e-4741-a6a5-1d86bcd9d4f8.png?v=1773964925\u0026amp;width=64\" alt=\"Advanced Ventilation \u0026amp; All-Weather Performance\" width=\"64\" height=\"64\" loading=\"lazy\"\u003e\u003cspan class=\"feature-text\"\u003eAdvanced Ventilation \u0026amp; All-Weather Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/grandiogreenhouses.com\/cdn\/shop\/files\/doors_icon_8f8e266a-a51f-4903-8e14-b9d77b7021eb.png?v=1773964925\u0026amp;width=64\" alt=\"Wide, Lockable, Double Sliding Doors\" width=\"64\" height=\"64\" loading=\"lazy\"\u003e\u003cspan class=\"feature-text\"\u003eWide, Lockable, Double Sliding Doors\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 id=\"tinymce_scroll_sign\"\u003eExplore the Features of the Grandio Greenhouse Summit\u003c\/h2\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWelcome to the Grandio Summit Greenhouse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis is the ultimate large-format greenhouse for serious gardeners — built commercial-grade yet perfect for dedicated hobbyists.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eWith an impressive 9.25-foot peak height, over 12 feet of width, and massive sliding doors, the Summit delivers exceptional headroom and spacious growing area. Its bold barn-style design combines rugged strength with beautiful aesthetics that stand out in any backyard or garden.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eCrafted with premium 10mm twin-wall polycarbonate panels and Grandio’s heaviest-duty powder-coated aluminum frame, the Summit offers superior insulation and durability that handles harsh weather with ease. Enjoy smooth-gliding lockable doors, excellent roof ventilation, built-in rain gutters, and the included snow load kit — all backed by Grandio’s reliable long-term warranties.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe Grandio Summit is the perfect choice when you want maximum space, professional-level performance, and a greenhouse that grows with you.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eCustomize Your Setup\u003c\/strong\u003e\u003cbr\u003eAdd a back door transformation kit to replace the rear wall with a second entrance for even more flexibility.\u003c\/p\u003e\n\u003ch3\u003eRobust and Durable Construction\u003c\/h3\u003e\n\u003cp\u003eThe Grandio Greenhouse Summit boasts a robust design that ensures long-lasting use in varied weather conditions. Built with heavy-duty galvanized steel frames, it provides strong resistance against rust and corrosion. Its durable polycarbonate panels allow optimal light transmission while protecting plants from harsh UV rays. This greenhouse is ideal for gardeners who need a reliable structure that can withstand wind, rain, and snow, securing your plants all year round.\u003c\/p\u003e\n\u003ch3\u003eSpacious Interior for Versatile Gardening\u003c\/h3\u003e\n\u003cp\u003eWith dimensions measuring 12 by 28 feet, the Grandio Greenhouse Summit offers an expansive growing area, ideal for both hobbyists and professional gardeners. The spacious interior allows ample room for shelving, potting benches, and large plant arrangements. This generous space not only maximizes your planting potential but also ensures ease of movement inside the greenhouse, making routine care and harvesting efficient and comfortable.\u003c\/p\u003e\n\u003ch3\u003eEfficient Ventilation and Climate Control\u003c\/h3\u003e\n\u003cp\u003eThis Grandio Greenhouse Summit is equipped with multiple roof vents and adjustable side vents that create an optimal airflow system. Effective ventilation helps regulate temperature and humidity, reducing the risk of mold and promoting healthy plant growth. The greenhouse design supports easy environmental control, making it simpler to create a perfect microclimate for a variety of plants regardless of external weather variations.\u003c\/p\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a0d7c56-46ec-83ec-91b9-8c2d0d4a731c-20\" data-turn-id-container=\"request-6a0d7c56-46ec-83ec-91b9-8c2d0d4a731c-20\" data-testid=\"conversation-turn-14\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"455ecb72-4806-4184-a3cf-7d7c95691e97\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch3 data-start=\"0\" data-end=\"18\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"20\" data-end=\"852\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-start=\"20\" data-end=\"41\"\u003e\n\u003cstrong data-start=\"22\" data-end=\"33\"\u003eHeight:\u003c\/strong\u003e 9' 3\"\u003c\/li\u003e\n\u003cli data-start=\"42\" data-end=\"60\"\u003e\n\u003cstrong data-start=\"44\" data-end=\"54\"\u003eWidth:\u003c\/strong\u003e 12'\u003c\/li\u003e\n\u003cli data-start=\"61\" data-end=\"79\"\u003e\n\u003cstrong data-start=\"63\" data-end=\"74\"\u003eLength:\u003c\/strong\u003e 8'\u003c\/li\u003e\n\u003cli data-start=\"80\" data-end=\"159\"\u003e\n\u003cstrong data-start=\"82\" data-end=\"101\"\u003eFrame Material:\u003c\/strong\u003e 1.2 mm heavy-duty aluminum with reinforced 1.5 mm areas\u003c\/li\u003e\n\u003cli data-start=\"160\" data-end=\"226\"\u003e\n\u003cstrong data-start=\"162\" data-end=\"180\"\u003eReinforcement:\u003c\/strong\u003e Cross roof trusses and cross corner bracing\u003c\/li\u003e\n\u003cli data-start=\"227\" data-end=\"268\"\u003e\n\u003cstrong data-start=\"229\" data-end=\"246\"\u003eFrame Finish:\u003c\/strong\u003e Powder-coated green\u003c\/li\u003e\n\u003cli data-start=\"269\" data-end=\"322\"\u003e\n\u003cstrong data-start=\"271\" data-end=\"285\"\u003eDoor Type:\u003c\/strong\u003e Bind-resistant double sliding door\u003c\/li\u003e\n\u003cli data-start=\"323\" data-end=\"373\"\u003e\n\u003cstrong data-start=\"325\" data-end=\"342\"\u003eLatch System:\u003c\/strong\u003e Magnetic latch with key lock\u003c\/li\u003e\n\u003cli data-start=\"374\" data-end=\"414\"\u003e\n\u003cstrong data-start=\"376\" data-end=\"396\"\u003eDoor Dimensions:\u003c\/strong\u003e 3' 6\" x 7' 1.5\"\u003c\/li\u003e\n\u003cli data-start=\"415\" data-end=\"459\"\u003e\n\u003cstrong data-start=\"417\" data-end=\"451\"\u003ePolycarbonate Panel Thickness:\u003c\/strong\u003e 10 mm\u003c\/li\u003e\n\u003cli data-start=\"460\" data-end=\"481\"\u003e\n\u003cstrong data-start=\"462\" data-end=\"477\"\u003eRoof Vents:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli data-start=\"482\" data-end=\"512\"\u003e\n\u003cstrong data-start=\"484\" data-end=\"501\"\u003eRain Gutters:\u003c\/strong\u003e Built-in\u003c\/li\u003e\n\u003cli data-start=\"513\" data-end=\"552\"\u003e\n\u003cstrong data-start=\"515\" data-end=\"534\"\u003eSteel Base Kit:\u003c\/strong\u003e Sold separately\u003c\/li\u003e\n\u003cli data-start=\"553\" data-end=\"584\"\u003e\n\u003cstrong data-start=\"555\" data-end=\"573\"\u003eSnow Load Kit:\u003c\/strong\u003e Included\u003c\/li\u003e\n\u003cli data-start=\"585\" data-end=\"626\"\u003e\n\u003cstrong data-start=\"587\" data-end=\"614\"\u003eOptional Back Door Kit:\u003c\/strong\u003e Available\u003c\/li\u003e\n\u003cli data-start=\"627\" data-end=\"675\"\u003e\n\u003cstrong data-start=\"629\" data-end=\"644\"\u003eExtendable:\u003c\/strong\u003e Yes, in 4' length extensions\u003c\/li\u003e\n\u003cli data-start=\"676\" data-end=\"726\"\u003e\n\u003cstrong data-start=\"678\" data-end=\"703\"\u003eAnchor Compatibility:\u003c\/strong\u003e Wood, concrete, dirt\u003c\/li\u003e\n\u003cli data-start=\"727\" data-end=\"780\"\u003e\n\u003cstrong data-start=\"729\" data-end=\"745\"\u003eSnow Rating:\u003c\/strong\u003e Maximum snow load of 25 lbs.\/ft²\u003c\/li\u003e\n\u003cli data-start=\"781\" data-end=\"852\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"783\" data-end=\"799\"\u003eWind Rating:\u003c\/strong\u003e Withstands winds up to 76 mph when properly anchored\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBasic Includes:\u003cbr\u003e\u003c\/strong\u003e  14 Roof Windows, Rain Gutters, Drain Kit, Extreme Snow Load Kit\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrandio Summit 12x28 Accessories Upgrade\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e:  14 Auto Window Openers, 2 Packs (10) Plant Hangers, 1 Trellis Kit, 1 Drip Kit, 2 Bottles of Cleaner (8oz.)v\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Grandio Greenhouses","offers":[{"title":"Wood \/ No Upgrade","offer_id":49447452606602,"sku":"SUMMIT-1228","price":8899.0,"currency_code":"USD","in_stock":true},{"title":"Wood \/ Add Premium Upgrade","offer_id":49447452639370,"sku":"SUMMIT-1228-SUMMIT-1224-UPG","price":10328.0,"currency_code":"USD","in_stock":true},{"title":"Concrete \/ No Upgrade","offer_id":49447452672138,"sku":"SUMMIT-1228","price":8899.0,"currency_code":"USD","in_stock":true},{"title":"Concrete \/ Add Premium Upgrade","offer_id":49447452704906,"sku":"SUMMIT-1228-SUMMIT-1224-UPG","price":10328.0,"currency_code":"USD","in_stock":true},{"title":"Dirt (Adds Base kit $1499) \/ No Upgrade","offer_id":49447452737674,"sku":"SUMMIT-1228-BAS-1228","price":10398.0,"currency_code":"USD","in_stock":true},{"title":"Dirt (Adds Base kit $1499) \/ Add Premium Upgrade","offer_id":49447452770442,"sku":"SUMMIT-1228-BAS-1228-SUMMIT-1224-UPG","price":11827.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/4621\/4282\/files\/summit_greenhouse_12x8_v1.webp?v=1779310088","url":"https:\/\/www.venturebeyondhq.com\/products\/grandio-greenhouses-summit-12x28","provider":"Venture Beyond HQ","version":"1.0","type":"link"}