Eighteen shelf positions is an unusual amount of adjustment for a cabinet this size, and it means the interior can be set for paperbacks one year and box files the next. The top surface takes 66 lbs, the adjustable shelf 33 lbs and the bottom 55 lbs. Inner shelf width is 18.5 x 11 in inside a 19.5 x 12 x 29.5 in frame that weighs 27 lbs. The wide flat top doubles as display space for lamps or plants. White engineered wood and MDF suit a bedroom or a study where dark wood would feel heavy.