I have 2 of the foam boards from Home Depot. One I left 4X8' with a 2' extension to make it 6' x 8'. The other I made 6'x6'. I just lean them up against the wall because I like to use both sides and I can move them from room to room if I need to. Also, I use pins, not flannel because I sandwich my quilts on my boards so I don't have to get down on the floor, and I don't pin my quilts to the flannel.