Stationary shelves come in widths to fit 24" wide panel spaces and all cabinet rack depths. Shelves are one-piece, 16-gauge steel with flanged front and rear to support up to 200 lbs. All shelves come with necessary mounting hardware. Additional brackets are furnished to allow flexibility in mounting. Shelves allow sufficient room in rear for cables and power outlet strips. Requires two pairs of panel mounting rails per cabinet rack. Finish: smooth black. 29-1/4" Maximum clear inside depth.