Mayline Steel Utility Cabinets, 30 by 21 by 26-1/2-Inch, Gray/Gray Mobile Utility Cabinets have all steel cabinets with low-pressure laminate top and roll formed steel doors Casters for mobility (2 locking) Does not include interior middle shelf 150# weight capacity The rest of the cabinet is made of steel Roll-formed steel doors protect interior storage compartment Cabinet supports up to 150 lb.