I'm rather frugal so when I decided to make a design wall I began looking around at what I have. Remembered getting our king size mattress in a heavy cardboard box so I cut the top and bottom off the side pieces, glued them together and bought what I needed in flannel and covered the whole thing stapling it on the back side. Made a wonderful design wall and it leans at a very slight angle so I very seldom have to pin. Right now I have two projects on it. Have made smaller design pannels from cardboard and I carry them around with me. Can't do without them. From cheapo in MD, happy quilting.