The Dewalt DXST4500 4FT 3-Shelf Industrial Rack Was Designed And Engineered To Provide Heavy-Duty Storage For The Professional And Home User. This Upright Storage System Features Three Adjustable Shelves With Composite Wood Decks That Provide A 4,500 Lb Total Load Capacity When Weight Is Evenly Distributed. There Are Two Types Of Safety Straps For Each Shelf That Prevent The Crossbeams From Spreading Under Heavy Loads Or Twisting Out, Ensuring Your Tools, Boxes, And Other Heavy Storage Items Are Secure. Locking Shelf Pins Ensure Proper Crossbeam Installation While Extreme Load Straps Prevent Those Crossbeams From Spreading Under Heavy Loads. The Steel Uprights And Beams Feature An Industrial Powder-Coated Finish That Won’t Fade Or Chip, So The DXST4500 Will Remain Looking Dewalt Tough For Years To Come.