Diy Wood Slat Bench . Place the legs in the corners of the top and square them off with the apron. (4) @ 27” long for the legs and. Slat Bench from Palettes Ana White Bench, Slats, Diy furniture from www.pinterest.com It requires a single 8' long 2x12, one 8' long 2x4, and three 1/2 deck screws. This post features a tutorial for a diy slatted bench with hairpin legs, and also features new power tools from ryobi. These will be the support boards for the bench.