This add-on library shelf is the perfect addition to any library shelf needing more space for books, magazines and binders. Enables individual solutions for small and large rooms. Frames are robust and durable with open and colored decorative backs which makes them long-lasting and pleasing in any decor. Ideal storage for offices, libraries, classrooms or waiting areas. Comes with one side frame and five standard connecting shelves. Weight: 64 lbs. Made of ¾"thick 3-layer beech MDF with powder-coated steel bars.