The professional Alera Valencia Standard Bookcase comes in a variety of size options to match any office’s needs. The contemporary, commercial-grade design is crafted from espresso woodgrain laminate with protective 3mm edge banding for added dent and scratch resistance. All shelves are 11.75 inches deep and the larger sized bookcase you purchase, the more of those shelves will be adjustable. The topmost panel is 14 inches deep for optional door installation. Some assembly is required.