Accommodating an assortment of items, our 21"d 3-tier chrome wire shelving supports several storage needs. Perfect for optimizing organization in your business or at home. Constructed of chrome-plated steel Open design reduces dust accumulation 21-48"w shelves hold up to 800 lbs, evenly distributed 60/72"w shelves hold up to 500 lbs, evenly distributed Made for indoor use, dry storage only To securely set and easily release shelves, tap their corners with arubber mallet. View ourWire Shelving Size Guideto see actual outer and inner dimensions.