Larger steel 2 5/16 arches that are stronger than the smaller pipe

30x60 30x90 30x110 Arches are 5 apart WIND BRACING Roll up sides Large steel arches 2 5/16" wide

A structure that is put together with quality materials and with a plan is what makes a greenhouse frame stronger than the basic cheap system. I take pride in the frame structure because of the thought that has went into building a frame that can be a permanent structure. I can sell the greenhouse and know they will be able to use this system for a long time.

2 1/4 steel pipe hoops 3 PC hoop Each hoop 18" in set in concrete. 3 steel perlings full length 2x10 board around the bottom 2x6 4ft...