Hirsh Industries Steel Galvanized Metal Shelving Unit, 48 by 18 by 72-Inch Medium-duty, industrial shelving holds up to 1,700-pound of evenly distributed weight on rugged particleboard shelves Sleek galvanized styling and hidden shelf attachments deliver a clean look Medium-duty, industrial shelving holds up to 1,700 lb Of evenly distributed weight on rugged particleboard shelves Sleek galvanized styling and hidden shelf attachments deliver a clean look