Five open decks on a welded steel frame, each fitted with a raised back panel so books and picture frames cannot push off the rear edge and drop behind the unit. The 22-in by 11-in shelves clear 11.5 in of headroom, enough for hardcovers standing upright, and each carries up to 33 lbs. The frame stands 61 in tall on a 24-in by 12-in footprint, light at 26.5 lbs so one person can slide it into place, and adjustable foot pads square it on an uneven floor. Wooden decks wipe clean, and the supplied anti-toppling devices fix it to the wall.