Build your own greenhouse to extend the growing season in your backyard with quality materials and expert advice from your local Co-op Home Centre.

Follow our comprehensive and easy-to-understand assembly instructions to ensure your project will be a success. These greenhouses will protect your seedlings from harsh weather conditions and allow you to grow a variety of plants that require more controlled growing conditions than they can find outdoors.

Pressure-treated wood construction ensures these greenhouses can withstand Western Canadian elements. This is a multi-weekend project for experienced DIYers. Assembly will require at least two people.

8’ x 12’ Gable Greenhouse

Dimensions

Length: 12’ Width: 8’ Height: 8’ 7”

Materials List

• Concrete Sidewalk Slab – 24” x 30”, 28 slabs
• TUFTEX Multi-Wall Polycarbonate Sheet – 4’x8’, 13 sheets
• 32’ TUFTEX Anti Dust Tape – 3 rolls
• TUFTEX U-Channel – 8’, 16 required
• TUFTEX H-Channel – 8’, 11 required
• TUFTEX Universal Ridge – 51”, 3 required
• Shed Window – 17” x 35”, 6 required
• Window and Door Caulking – 1 required
• Storm Door – 36” x 80”, 1 required

Lumber:

• 2x4 Pressure Treated – 8’, 2 boards
• 2x4 Pressure Treated – 12’, 2 boards
• 2x4 SPF #2 & Better – 8’, 45 boards
• 2x4 SPF #2 & Better – 10’, 8 boards
• 2x4 SPF #2 & Better – 12’, 5 boards
• 2x6 SPF #2 & Better – 8’, 1 board
• 2x6 SPF #2 & Better – 12’, 1 board
• 1x4 PVC Trim – 12’, 2 lengths
• Aluminum drip edge – 10’, 2 lengths

Hardware:

• 3” Screws, 1.5 lbs.
• Ridge Rafter Connector for 2” lumber – 10 connectors
• 0.148x1.5” Connector Nails – 80 nails
• 2.75” Finishing Screws and Plugs – 1.5 lbs.
• 0.148x1.5” Aluminum Nails – 80 nails
• TUFTEX 2” Fasteners – 250 fasteners

8’ x 12’ 6” Angled Greenhouse

Dimensions

Length: 12’ 6” Width: 8’ Height: 6’ 1” – 8’ 8”

Materials List

• Concrete Sidewalk Slab – 24” x 30”, 20 slabs
• TUFTEX Corrugated Polycarbonate Panels – 26”x8’, 18 required
• Silicone Caulking Windows – 1 required
• Silicone Caulking Polycarbonate Panels – 3 required
• Foam Closure Strips, 36” – 37 required
• Shed Window – 17” x 35”, 2 required
• Storm Door – 36” x 80”, 1 required
• L-Flashing, 4” x 4” x 10, 7 required

Lumber:

• 2x4 Pressure Treated – 8’, 2 boards
• 2x4 Pressure Treated – 12’, 2 boards
• 2x4 SPF #2 & Better – 8’, 14 boards
• 2x4 SPF #2 & Better – 12’, 22boards
• 2x6 SPF #2 & Better – 8’, 8 boards
• 2x6 SPF #2 & Better – 12’, 1 board
• 2x8 SPF #2 & Better – 12’, 1 board

Hardware:

• 3” Screws, 6 lb.
• TUFTEX 2” Fasteners – box of 50, 9 required

Recommended Tools

• Safety glasses
• Step ladders
• Tape measure
• Pencil
• Square
• Miter saw
• Sanding block
• Clamps
• Drill and bits
• Screwdrivers
• White paint

Power tools can be substituted with the applicable hand tools. If available, additional power tools, such as a table saw, impact driver or power sander, can be used to improve efficiency. Be sure to follow the manufacturer's operating instructions when using power tools and take all required safety precautions.