Alternative Gardening: Make Your Own Greenhouse -Materials : -3 standard "cattle panels". -2 rolls of 10'x50' clear plastic. I used 6 mil. -1 16-foot 2'x'4, 3 8-foot 2'x2's, 1 8-foot 1'x2'. -A package (100) of 8-inch zip-ties. -2 rolls of clear duct tape. -1 roll of standard electrical tape. -2 simple door hinges, and a simple handle and latch. -4 2-foot sections of rebar. -2 20-foot pieces of PVC. Schedule 40 is okay, but lighter grade will work better for this. -2-inch wood screws.