Outside: 12-7/8″ x 23-3/4″. Cut-Out: 10-1/8″ x 21-1/8″. Locking hatches. Features stainless steel lock – prevents unauthorized access. Cam style locks hold lid securely. Positive lid seal for watertight fit. Hidden fasteners in frame. Stainless steel hinges allow 160� opening. Structurally engineered “Walk On” lids. Height above deck: 5/8″. Polar White.