Collections
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Greenhouse Kits
Greenhouse KitsComplete greenhouse kits with frames, panels, and hardware — designed for simple setup and all-season growing.
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Greenhouse Panels
Greenhouse PanelsStrong, UV-protected polycarbonate panels. Ideal for both DIY projects and commercial builds.
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Featured products
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Smoke Tinted Bronze Polycarbonate Panels – UV-Resistant & Insulated Greenhouse Sheets
Vendor:FORTRESS INTERNATIONALRegular price From $73.00 CADRegular priceUnit price per$78.00 CADSale price From $73.00 CADSale -
Wavy Corrugated Panels.
Vendor:FORTRESS INTERNATIONALRegular price From $32.00 CADRegular priceUnit price per$36.00 CADSale price From $32.00 CADSale -
Smoke Tinted Twin Wall Polycarbonate Panels – UV Resistant Greenhouse & Roofing Sheets
Vendor:FORTRESS INTERNATIONALRegular price From $73.00 CADRegular priceUnit price per -
Clear Triple Wall Polycarbonate Sheets for Greenhouses – Multiple Sizes & Thickness (4mm–12mm)
Vendor:FORTRESS INTERNATIONALRegular price From $59.00 CADRegular priceUnit price per$84.00 CADSale price From $59.00 CADSale -
Triple Wall Clear Polycarbonate Greenhouse Panels – 4’x 10’ | 4mm to 8mm (Flat Sheets)
Vendor:FORTRESS INTERNATIONALRegular price From $75.00 CADRegular priceUnit price per$82.00 CADSale price From $75.00 CADSale -
Wavy, Corrugated Panels 1.5mm & 2mm Thick, Hail Proof,UV Resistant. 4’ft wide, comes in 20’ 14’ 12’ 10’ and 8’ft Lengths
Vendor:FORTRESS INTERNATIONALRegular price From $105.00 CADRegular priceUnit price per$110.00 CADSale price From $105.00 CADSale -
Lexan Polycarbonate Sheet – 4’ x 19’ | Solid Bulletproof Urethane – 4mm Thickness
Vendor:FORTRESS INTERNATIONALRegular price $690.00 CADRegular priceUnit price per$720.00 CADSale price $690.00 CADSale -
Lexan Polycarbonate Sheet – 4’ x 10’ | Solid Bulletproof Panel – 3mm & 5mm Thickness
Vendor:FORTRESS INTERNATIONALRegular price From $270.00 CADRegular priceUnit price per$285.00 CADSale price From $270.00 CADSale -
Pre-Assembled Greenhouse Kits – Durable, Ready-to-Use Polycarbonate Greenhouses (Multiple Sizes)
Vendor:FORTRESS INTERNATIONALRegular price From $1,700.00 CADRegular priceUnit price per -
Greenhouse Kit 2026 – DIY to Fully Assembled Options (Polycarbonate Panels)
Vendor:FORTRESS INTERNATIONALRegular price From $660.00 CADRegular priceUnit price per -
4 ft Clear U End Cap for Panels
Vendor:FORTRESS INTERNATIONALRegular price $10.00 CADRegular priceUnit price per$14.00 CADSale price $10.00 CADSale -
Aluminum H Connector for Polycarbonate Panels – 8ft, 10ft, 20ft Sizes
Vendor:FORTRESS INTERNATIONALRegular price From $45.00 CADRegular priceUnit price per$49.00 CADSale price From $45.00 CADSale -
4 ft Foam Closure Strip for Corrugated Panels
Vendor:FORTRESS INTERNATIONALRegular price $9.00 CADRegular priceUnit price per$12.00 CADSale price $9.00 CADSale -
Commercial Grade 6 Mil Greenhouse Poly Film – UV Resistant, Anti-Condensation, 10+ Year Clear Greenhouse Plastic (Made in Canada)
Vendor:FORTRESS INTERNATIONALRegular price From $82.00 CADRegular priceUnit price per -
Aluminum Dome Washer 1.25” – 3/16” Hole Size | Rust-Resistant Fastener Washer
Vendor:FORTRESS INTERNATIONALRegular price $0.90 CADRegular priceUnit price per$1.50 CADSale price $0.90 CADSale -
Pressure Treated Wooden Greenhouse Strapping 1”x2”x8ft – Outdoor Weather-Resistant Wood Support Lumber
Vendor:FORTRESS INTERNATIONALRegular price $12.00 CADRegular priceUnit price per$16.00 CADSale price $12.00 CADSale -
Rubber Dome Washer Screw for Polycarbonate Panels – $0.30 each
Vendor:FORTRESS INTERNATIONALRegular price $0.30 CADRegular priceUnit price per$1.00 CADSale price $0.30 CADSale
Durable & lightweight, Polycarbonate panels
Perfect for greenhouse, Sheds and DIY project. Our Polycarbonate panel offer superior light diffusion, UV protection and long– lasting strength in all weather condition, easy to cut and install. They are a smart choice for any build