Here is the frame fully constructed. It looks real nice, but the design had a fatal flaw. The triangular shape had a 10-foot base and 9.5-foot upright sides. The calculated angle at the top is 63.5 degrees forced into a 90-degree fitting using rigid drinking water PVC pipe. This puts strain on the uprights. They want to fit in the 90-degree connector, so they start spreading at the other end, causing the sides to spread. I did not realize this at the time. I corrected this problem later.