Stack-On IWC-22 In-Wall Cabinet Includes 2 removable steel shelves. The bottom of the cabinet and the selves have foam padding to protect your valuables. The steel door has a 3 point locking system that secures the door at the top and bottom as well as the opening side of the door. External Dimensions: 15-3/8"W x 3-7/8"D x 22-1/4"