I had made shelving units for the wood shop that hung on my French cleat system. The shelves do not work well for smaller items as there is no way to organize small pieces and the space of the shelf above the small pieces goes unused. I made simple drawers from 3/8 inch Russian birch plywood. I cut dados in the bottom piece and attached sides and dividers with those dados. I butt jointed a back and front to that. The front is a 1/2 inch wider than the drawer to hide the maple runners that the drawers slide on. This was a prototype and when I do this again, I will try making a frame with the vertical pieces first, then attaching the bottom to that.