Have an old trampoline? The frame of them make a greatgreenhouse frame. Most have 4 sections of round pipe & several straight piecesthat were the legs. We just slapped this together quickly to protect sometender new plant in the early spring last season. We will finish it off thisspring. We’ll put plywood under the arch & build end walls with doors thatwill open. The sides will be able to be rolled up about 5’ for circulation whenwe install new covering. In the winter it’s a great place to store equipment. We got this one for free at the dump. Post an ad for one & you may have someone give you one for no charge, or very little cost.