Justrite 29937 SpillSlope Shelf for 17/30/40/45 Gal Cabinet, Expand storage, add new convenience to existing cabinets, or customize your new cabinet with additional shelves to meet specific workflow needs. Galvanized steel shelves hold up to 350 lbs. and adjust on 3" increments for versatile storage. Meets ANSI MH28.1. Shelf only, cabinet not included.