If you have room foam board is great! I bought 2 four by eight sheets and taped them together......like a hinge... and pinned flannel on. I will eventually make it 7'x7' because it really is too LARGE but you could make it any size you want. When you are not using it, fold the boards together and take them to the garage or where ever you want. The only reason I did this is because I didn't have a place to hang flannel and this board can be propped up anywhere.