I needed an assembly platform for the shop but space, as always, was at a premium. There was not enough real estate for a fixed unit so I devised one that knocks down for easy storage. The platform is 36" x 36" and sits 18" high. It will be used for assembling chairs and casework. The top platform is made from birch plywood and with poplar edge banding and turnbuckles. The supports are built from birch plywood and poplar. Construction of the supports are similar to an I-joist. Photo 2 and 3 show how the support is assembled. One of the major elements in designing this platform was storage. Two of the support legs store within the frame of the top platform (photo 4). The cross support then stores at the bottom and it helps hold the other supports in place (photo 5). The entire unit is meant to hang on the wall on french cleats or it can easily store in a corner. The disassembled unit is only 2.5" thick. The platform and supports are sealed with 2 coats of satin polyurethane to prevent glue drips from sticking. The platform is remarkably strong and easily supports over 250 pounds.