Two-shelf bookcase features a strong, 24-gauge steel exterior and shelf construction together with a solid fiberboard back for sturdy, dependable value. Plastic, snap-in radius corners along with quick-lock fasteners make assembly easy and add to the overall strength of the bookcase. Generously 12" deep shelves accommodate three-ring binders and oversized materials and adjust in 1" increments during assembly. Shelves hold 70 lb. evenly distributed. Steel construction has a powder-coat finish for extra durability..