The DEWALT DXST4500BLK 4 Foot Tall, 3 Shelf Industrial Rack was designed and engineered to provide heavy-duty storage for both professional and home use. This rack features innovative details that aren't typically found on industrial racks such as solid laminate decks, safety straps with weld nuts for ease of assembly and top caps that protect both you and your items from possible damage. The three black laminate wood composite decks can each support an evenly distributed 1, 500 lb. for a total of 4, 500 lbs. The uprights, crossbeams and support straps are all made from powder-coated steel and are designed so that each shelf has 5 support straps to prevent them from twisting or buckling under pressure. The shelves are adjustable in 2.35 in. increments and the locking pins ensure that each shelf is properly installed. For added security and peace of mind the rack has glass-filled nylon feet so it will not damage flooring and a wall mount bracket so you can secure your rack against any accidental tipping. Each rack also includes 2 stacking plates to join 2 racks together vertically or connect them horizontally using the shelves alone. For easy assembly 2 uprights come with pre-installed horizontal and diagonal support beams making getting started fast and stress-free. In addition to the standard hex key and wrench tool we've even included a hex bit to use with your favorite DEWALT driver so you'll be in, out and organized in no time.