My first design wall was a vinyl tablecloth with that fuzzy backing. It was too small. My second wall was a flannel king size sheet tacked up in the hallway. I use my hallway because it's very wide, and because there's no other uninterrupted wall in my house large enough. The flannel worked okay, but every time someone walked down the hallway the blocks would fall off. Now I'm using batting yardage, and it works GREAT! The batting is very "sticky", the blocks don't get knocked off, and it's large enough for multiple quilts in progress.