DURHAM Heavy-Duty Reinforced Shelving handles your most demanding storage requirements. Perfect for heavy storage, industrial supply storage or as tool and die rack. Huge 3000-lb. capacity per shelf when distributed evenly! Shelves are 13-ga. steel, channel-formed on 4 sides with stiffener underneath. Galvanized posts are 2x2", 12-ga. steel, punched on 1" centers. Consists of 4 posts, 5 bolt-on shelves and all hardware for assembly. Ships unassembled. Made in USA.