Heavy-Duty Warehouse Shelving. Capacity: 500 kg per level (UDL). Structure: Premium powder-coated steel (rust & scratch resistant). Features: Boltless easy assembly, height-adjustable shelves, and high stability. Best For: Warehouses, workshops, and industrial storage. : Heavy-Duty Warehouse Shelving. Capacity: 500 kg per level (UDL). Structure: Premium powder-coated steel (rust & scratch resistant). Features: Boltless easy assembly, height-adjustable shelves, and high stability. Best For: Warehouses, workshops, and industrial storage.