We have commercial bookshelves and high end bookcases with 3, 4, 5, and 6 (or more) adjustable shelves. Available in a number of different finishes including espresso, modern walnut, mahogany, honey, cherry and dark walnut (close to black). We frequently have used metal and consumer grade laminate bookcases in stock which are an oak finish or painted white, putty, beige or black. Most bookcases are 36 inches wide and 30 inches, 48 inches (4FT) or 72 inches (6FT) tall and 14 inches deep. Our new bookcases feature high end commercial grade manufacturing with a heavy duty laminate back that will not fall apart and includes a 5 year warranty so you can rest easy that you are purchasing a high quality product.