Iconic MetalGear 1501 Step Box - Smooth Aluminum Door - 16W x 24"H  x 28"D Automotive grade bulb seal provide superior protection against water to keep contents dry and rust-free Strong lightweight 0.125" aluminum used to provide durable secure storage while adding minimum weight to your tractor trailer Durable, padlockable T-Handle is great for independents and fleets alike Available with smooth and checker plate aluminum doors in many useful sizes Mounting brackets sold separately