The Grainger Freestanding Metal Shelving Racks are industrial-grade steel shelving units designed for warehouses, distribution centers, retail stores, and other commercial applications. They feature a boltless design for quick assembly and adjustable shelves to accommodate various storage needs. The uprights and beams are made from roll-formed steel with a durable powder coat finish available in gray, blue, or black. Shelves can hold up to 800 lbs evenly distributed. Multiple sizes and configurations are offered, like 36"W x 18"D shelves in 5-tier or 7-tier units up to 96"H. Bulk storage racks can be combined into a larger system.