I used yardage of polar fleece. the length of the yardage was my width, the width of the fabric was my length (60"). I rolled slats the size of a yeardstick over the top of the fabric and DH screwed it into the studs. At the bottom, use two widths of the slats and roll to the back and staple. The bottom slats give it body and strength so it doesn't flap around. the extra slat at the bottom gives an angle to the fabric as it hangs, so your blocks won't need as much pinning to stay on. the fleece like flannel hold the fabrics well.