I used 3/4 inch insulation board form Lowes which my DH attached to a frame he had built in the wall. I only have room for 6 feet wide but 8 would be better for the queens sized quilts. I then covered it with batting and it works perfect. The only time I use pins is when I'm spray basting a quilt together and want things snug. I don't know what I would do without it.