Iron Horse Shelving Features A Rugged, Boltless Design For Easy Assembly And Professional Appearance. Each Five-Shelf Unit Holds A Total Capacity Of 3,200 Lb. Of Evenly Distributed Weight. Black Laminated Shelves Are Water-Resistant And Supported By A Heavy-Duty Steel Frame With A Smooth, Rust-Resistant, Powder-Coat Finish. Shelves Are Made Of Sturdy Particleboard That Is Carb Phase Ii Compliant. Assemble Vertically Or Horizontally In Less Than 30 Minutes With A Rubber Mallet. Concealed Rivets Deliver A Clean Look..