20' Greenhouse Kits

Upgrade your gardening setup with our 20ft Wide Quonset Style Greenhouse Kits, engineered for strength and durability. Each greenhouse stands 10-10.5ft tall at the peak and is built with 1 5/8" commercial-grade steel for a sturdy structure.

What's in the Kit:

• 3-piece Quonset hoop for a robust frame

• (3) Top/side mount purlins for added support

• 3ft structural ground tubes for stability

• Sway bars (2 for up to 10ft long, 4 for longer structures)

• All necessary connection hardware, base board hardware, and screws included (you’ll need 2in wood screws to attach the base board with our clamps)

• Channel lock and wire for securing the poly to the hoops and base boards

• 6MIL clear 4-year rated poly top cover with an extra 5ft for easier installation (upgrade to reinforced woven poly available)

Options:

• Roll-up sides

• 20ft steel end wall kits with an 8x7ft doorway

• Auto shade/blackout kits

• Manual blackout kits

• Ventilation fans

Additional Info:

• This is a complete open-ended kit; simply add lumber for the base boards and 2in wood screws from your local hardware store.

Customize your greenhouse with optional features and enjoy a more efficient gardening experience.