With thirteen 1 ¾" H. sections that gradually get larger from top to bottom and removable shelves to hold taller items such as floor puzzle boxes. Place several small puzzles on the same shelf or store our large oversized puzzles with room to spare. Measures 30" H. x 18" W. 9 ½" D. at the top and 13" D. at the bottom. ( Puzzles sold separately).