both tractor supply and harbor freight sell a 36 inch wide folding brake that is with a floor stand. this is the red one. I use galvinised steel 24 or 26 gauge. a 4x8 sheet will do 8 of the 10 frame covers and costs me about $18 for 26 gauge, 9 or 10 more for 24 gauge, the 24 gauge is a bit harder to work with. I punch the holes with a hand punch and do the corners with a hand seamer, both are available from harbor freight . it is worth it to get a good set of hand shears, either malco or weiss. the brake costs between 2 and 300 but you will actually use it for a lot of projects if you have it... the steel will hold up a lot longer than the thin aluminum flashing, paint it well. the steel is heavier it stays on the hive better. ..my first brake is 52 inches wide, I made it from scratch for a stainless job many years ago. the red one is very quick and easy to use and gives nice sharp corners.