Fifteen folders standing upright is what you can expect from a wall board that boasts a length of 40 inches. Not to mention the many books it can carry. It is also much more than a shelf, a wall shelf, or a folding wall shelf. As a discrete wall console, it is a fine rack for this and that, it is always there when additional storage space is needed. And when it is folded up, it is much less than all that. Then it is a discrete, mysterious frame on the wall.