Six cubes in a wide low frame make this 41 inch bookshelf a good fit under a window or behind a sofa. Each cube measures 13 inches square and holds 44 lbs, and the top surface takes up to 154 lbs. An open back with a guardrail keeps contents reachable from either side, and thickened boards with anti-tipping kits and non-slip pads finish a stable piece for a busy room.