I used 2 4x8 ft sheets of insulation material from Home Depot. A friend and I duct taped them together in a hinge fashion. The we sprayed the insulation with a 3M spray adhesive bought at an office supply store and covered it al with batting, though we could have used flannel. I then duct taped the edges so it would look 'pretty.'
It is folded and behind a large bookcase in my living room. The top is draped with a Mola and it looks like a design element of the room. Whenever I need it I pull it our and unfold it for use. I lay out my quilt and take pictures then carefully remove the blocks and number the rows appropriately.
This is ideal for a small place when you want a large quilt wall.
enjoy.