Originally Posted by top cat
Dad used to take 10' sections of PVC and put a T between to make a domed one. Drive rebar in the ground to hold it. Cover with clear poly. Worked pretty well and cheap


My grandfather did the same, but used fiberglass roofing panels. He built it in the 70s for my grandmother's flowers, and except for replacing panels that were busted from us playing baseball in his backyard, it has stood the test of time. He had to replace /repair some panels that got busted from us playing baseball in the backyard, but other than that, it is still standing.