Unique construction requires no nuts or bolts & assembles quickly & easily without tools. Versatile design allows two different set-ups: a five-shelf, 72" high storage unit, or a 36" high workbench. Shelves adjust in 1" increments for storage flexibility. Steel frame with a durable powder coat finish. Number of Shelves: 5; Shelf Thickness: 0.5"; Shelf Capacity (Weight): 800 lbs; Material(s): Particleboard; Steel.