Special Offers
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Vendor: 23ZERO
23ZERO Kabari Z Aluminum Hardshell Roof Top Tent - 2 Person, 4 Season
Regular price $4,495.00 -
Vendor: 23ZERO
23ZERO Armadillo Horizon 3 Aluminum Hardshell Roof Top Tent - Left Opening
Regular price $4,295.00 -
Vendor: 23ZERO
23ZERO Armadillo Horizon 2 Aluminum Hardshell Roof Top Tent - Left Opening
Regular price $3,995.00 -
Vendor: 23ZERO
23ZERO Bushman 90 in Straight Pull-Out Awning with Awning Room
Regular price $815.00
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Vendor: Grandio
Grandio Summit 12x28 Greenhouse Kit, 10mm Twin-Wall Polycarbonate
The Grandio Summit 12x28 is Grandio's largest and tallest greenhouse, with a 12-foot width, cross roof trusses, corner bracing and a lockable double sliding door. It gives you 336 square feet of growing space under a...Sale price From $8,899.00Regular price $9,789.00Sale price From $8,899.00Regular price $9,789.00 -
Vendor: Grandio
Grandio Summit 12x32 Greenhouse Kit, 10mm Twin-Wall Polycarbonate
The Grandio Summit 12x32 is Grandio's largest and tallest greenhouse, with a 12-foot width, cross roof trusses, corner bracing and a lockable double sliding door. It gives you 384 square feet of growing space under a...Sale price From $9,899.00Regular price $10,889.00Sale price From $9,899.00Regular price $10,889.00 -
Vendor: Grandio
Grandio Element Steel Base Kit with Dirt Anchors
The Grandio Element Steel Base Kit is the foundation for setting an Element greenhouse directly on soil. The galvanized steel frame matches the Element footprint, and the included dirt anchors lock it to the ground so...Sale price From $249.00Regular price $274.00Sale price From $249.00Regular price $274.00 -
Vendor: Grandio
Grandio Summit Steel Base Kit with Dirt Anchors
The Grandio Summit Steel Base Kit is the foundation for installing a Summit greenhouse directly on soil. Galvanized steel rails match the Summit footprint exactly, and the included dirt anchors tie the base to the ground,...Sale price From $499.00Regular price $549.00Sale price From $499.00Regular price $549.00 -
Vendor: Grandio
Grandio Automatic Roof Vent Opener
The Grandio Automatic Roof Vent Opener opens and closes a greenhouse roof vent on its own as the temperature changes, with no power, wiring or batteries. A wax-filled cylinder expands as the greenhouse warms and pushes...Sale price $89.00Regular price $98.00Sale price $89.00Regular price $98.00 -
Vendor: Grandio
Grandio Greenhouse Wall Louver Window
The Grandio Wall Louver Window adds low, side-wall ventilation to a Grandio greenhouse. Paired with the roof vents, it sets up a natural convection loop: cool air enters at plant level through the louver while hot...Sale price From $139.00Regular price $153.00Sale price From $139.00Regular price $153.00
Grandio makes polycarbonate greenhouse kits for home growers, from the compact 6-foot-wide Element to the 12-foot-wide Summit. Every kit uses a powder-coated aluminum frame, twin-wall polycarbonate panels, roof vents and built-in rain gutters, and Grandio rates its greenhouses for up to 25 lb/ft² of snow and 76 mph winds when properly anchored. OffGrid Horizon is an authorized Grandio dealer.
How to choose
- Element (6' wide) – 6x4, 6x8 and 6x12 with 10mm panels. Best for patios, decks and smaller yards.
- Ascent (8' wide) – 8x8 to 8x24 with 6mm panels, 7' 9" peak, steel base kit and snow load kit included.
- Elite (8' wide) – 8x8 to 8x24 with 10mm panels, a barn-style roof, 8' peak, steel base kit and snow load kit included.
- Summit (12' wide) – 12x8 to 12x32 with 10mm panels, 9' 3" peak, reinforced trusses and a lockable door.
Most kits can be ordered for wood, concrete or dirt installation, with an optional accessories upgrade that adds automatic vent openers, plant hangers, a trellis kit, a drip kit and panel cleaner. Add shade nets, moisture control kits, louver windows and back door kits to finish your setup.