I've been wanting a design wall for so long and I finally tackled it this weekend! I had originally planned to buy stretcher frame sections, but after I priced them out ($60!), I opted for the budget foam core version ($16.50). I used 1/2" thick foam core in white, which doesn't deflect at all, and wrapped it in a slightly off-white flannel, attaching the flannel to the back of the board with straight pins. Tape would probably work better, but the pins seemed more forgiving. I initially mounted it to the wall with adhesive strips, but the board fell during the night. Plan B will use binder clips and picture wire, with hopefully better results!
