My order of 2×2x18 wood stakes arrived at Ace today, so I ran over to pick ‘em up as soon I got home from work. Made a little “assembly line” in the garage and in 4 passes cut the tip off all ‘em to make a 2×2x15 wood brace. Each of these will be attached to a shelf bracket, plywood on top, and then 1″ blue foam.