I have 2 ironing boards, same height. I have 2 thin sheets of plywood,6 x 4. I put up my ironing boards to my height, lay the plywood sheets acrooss (I have blue-taped the edges) and start layering the backing first, then the batting, and finally the top. I then use rubber-tipped C-clamps from Lowe's or Home Depot to clamp the whole shebang to my ironing boards. I don't have to bend over or crawl around to either pinbaste or glue and it works every time.