Seville Classics Commercial-Grade NSF-Certified Bin Rack Shop Tool Storage Steel Wire Shelving System, 21, Gray DIMENSIONS — 48” W x 14.25” D x 56” H (53” H on leveling feet) 7 TIERS — Shelving system includes seven steel wire shelves (48” x 14”) in a durable silver powder-coated finish. 21 BINS — Featuring 21 removable high-impact polypropylene (HIPP) gray bins made of 20% post-consumer recycled content: 6 X-Large (16” W x 14” D x 7” H) and 15 Large (10.5” W x 14” D x 7” H); Plus 4 bin dividers and 33 bin labels. MOBILE SYSTEM – Durable 3” diameter rubber wheels (two locking) allow for easy mobility. PATENTED BIN TILT LOCKING DESIGN — The bins feature a patented design (US Pat. #7,325,697) with a tilt locking feature allowing easy access to the bin’s contents. WEIGHT CAPACITY —800 lb. total for the entire system (on leveling feet) or 500 lbs. for the entire system (on wheels); 25 lbs. per bin or 115 lbs. per shelf (on leveling feet). NSF CERTIFIED – Bin rack system is NSF-certified for commercial use.