Your green house looks good. I built mine for about 70 bucks. Used 1 inch PVC (pre-cut @ 10 ft.) and 2 rolls of clear plastic 4ml, which comes on a 25 ft roll that is 10 ft wide. My greenhouse is 8'w X 12'l X 9 1/2'T. Oh and I am running 2 fans as well. So far, so good.
As you can see in my...