Wire Shelving Unit Steel Zinc-Plated Silver Overall Depth 18 in Overall Height 69 in Overall Width 48 in Caster Wheel/Configuration (2) Swivel (2) Swivel with Brakes Caster Wheel/Tread Material Polyurethane Caster Wheel Diameter 6 in Load Capacity per Shelf 250 lb Whole Unit Load Capacity 1 000 lb Number of Shelves 3 Shelf Adjustment Type Split Sleeve Shelf Adjustment Increments 1 in Shelving Configuration Standalone Adjustability Adjustable Duty Rating Heavy-Duty