One rack that changes shape with the room: the frame stretches from 19.5-in to 30-in wide, splits into two independent racks, or joins a second unit into one long run along a garage wall. Shelves set at thirteen positions in 4-in steps, so paint cans on the bottom and cereal boxes on top each get the clearance they need, with 12.5-in between tiers as standard. The steel frame folds to 2.5-in thick for storage behind a door, and slot joints mean no bolts to sort. Eight casters roll a 165-lb load, and four lock to park the rack.