12' Greenhouse Kits

Enhance your gardening space with our 12ft Wide Quonset Style Greenhouse Kits, offering durability and efficiency. Each greenhouse reaches 7.5-8ft at the peak, crafted from 1 3/8" commercial-grade steel, with a solid structure including a 1 3/8" center purlin and 1 5/8" structural ground tubes.
 
What's in the Kit:
Quonset hoop for a reliable frame
Top mount center purlin for added support
3ft structural ground tubes for stability
Sway bars (2 for up to 15ft long, 4 for longer structures)
All necessary connection hardware, base board hardware, and screws included
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
 
End Walls:
Front end wall with a 3x6.5ft door, made from 1.5x1.5 16 gauge square tubing
Back wall plain with no entry, featuring 2 uprights and 2 horizontal supports
 
Options:
Roll-up sides
End wall kits
Shade cloth
Ground cover
Ventilation fans
 
Additional Info:
This is a complete open-ended kit; you’ll need double the length of your greenhouse in 2x6 lumber for base boards, which you can source from your local hardware store.