Two 4-tier shelving units arrive in one box and cover a full 48-in wall run in a garage, basement, or laundry room. Each shelf carries up to 800 lb for a 3200-lb total across the four tiers, held by V-shaped wire decks that spread the load toward the corner posts rather than sagging in the middle. Shelves reposition along the uprights in set increments, so paint cans, totes, and power tools all get the clearance they need. Clips lock each tier without tools, adjustable foot pads level the frame on a sloped slab, and an anti-tip kit ties the unit to the wall.