20ft. Quonset Style Greenhouse Plans .pdf

Greenhouse Fitting Kit for 20ft wide with 5 purlins.

All of our kits are fittings only.

Picture is for example only.

This 20x20 Fitting kit includes the following greenhouse fittings:
4- ghf104 Corner fittings
2- ghf109 Peak T fittings
4- ghf102 Peak Cross fitting
32 - ghf101 T's fittings
20-ghf103 Cross fittings
12-ghf105 Angled T's fittings
8-ghf106 90 degree elbows
4- ghf107 Hinges
2-ghf108 Latch

2-Door cable with clamps

•This fitting kit uses 1-3/8" Fittings used with 1-3/8" Top Rail chain link tubing.
•This tubing can be purchased at your local hardware or fence supply store.
•The tubing comes in approx.  21ft sections.

••20x24 adds these additional fittings: 4  Cross fittings, 2 "T" fittings and 1 "Peak Cross" fitting.
••20x28 adds these additional fittings: 8  Cross fittings, 4 "T" fittings and 2 "Peak Cross" fitting.
••20x32 adds these additional fittings: 12  Cross fittings, 6 "T" fittings and 3 "Peak Cross" fitting.
••20x36 adds these additional fittings: 16  Cross fittings, 8 "T" fittings and 4 "Peak Cross" fitting.
••20x40 adds these additional fittings: 20  Cross fittings, 10 "T" fittings and 5 "Peak Cross" fitting.
••20x44 adds these additional fittings: 24  Cross fittings, 12 "T" fittings and 6 "Peak Cross" fitting.
••20x48 adds these additional fittings: 28  Cross fittings, 14 "T" fittings and 7 "Peak Cross" fitting.
••20x52 adds these additional fittings: 32  Cross fittings, 16 "T" fittings and 8 "Peak Cross" fitting.
••20x56 adds these additional fittings: 36  Cross fittings, 18 "T" fittings and 9 "Peak Cross" fitting.
••20x60 adds these additional fittings: 40  Cross fittings, 20 "T" fittings and 10 "Peak Cross" fitting.

and so on...

*email us if you have any questions. @ coloradometalworx@gmail.com


The Greenhouse pictured is a 20ft wide x 44ft, Pricing and Fittings in this listing are for a 5 purlin kit.
Picture is for example only.


These fittings were designed by Shane Dodge and manufactured at colorado metal worx, all rights reserved 2026.