I used some leftover batting but I attached mine to the wall permanently and added a wood trim around it. I use my vacuum to suck up all the strings that accumulate from time to time and when my blocks don't seem to want to stick to the wall I spray some quilt spray, let it dry a little and then throw my blocks onto the wall. Seems to work for me. I made mine as large as I could which still isn't as large as I'd like since I've been making larger quilts lately. Still its 67"H x 88W. Have baseboard heat so that took about a foot on my height and I'm situated in the basement with low ceilings (open studs). But it works for the most part for me. My last sewing room didn't even have a design wall so I count myself lucky now.