2300 Rivet shelving is designed for heavy-duty use. The boltless design allows for quick and easy assembly. The powder coated finish is rust resistant and durable. The Iron Horse shelving unit can be assembled either horizontally or vertically, depending on your storage needs. Each unit includes rugged particle board shelves. Steel four-shelf unit holds a total capacity of 2,300 lb evenly distributed. Assemble with a rubber mallet (not included) in less than 30 minutes. Shelving is made of heavy-duty riveted steel construction. Shelf Count: 4; Shelf Depth: 17.06"; Shelf Thickness: 0.38"; Shelf Capacity (Weight): 575 lbs.