At 13 in wide, this ten-tray cart fits the gap between a desk and the wall where a full-size unit would block the walkway, yet it still runs 34 in tall for ten separate layers. Each tray is 2.5 in deep, which suits mail, letterhead, stamps, model paints, cable ties, and other small items that vanish inside a deep bin. Trays glide on metal channels and lift free when a project moves to the table. The top panel takes another 15 lbs, each tray carries 3 lbs, and four 1.5-in casters with two locks keep the 9.5-lb frame rolling or parked as needed.