28" Rotabin® Revolving Shelves - 6 permanent dividers create (6) 14-1/2"W x 12"D x 5-3/4"H compartments per shelf on these 28" Rotabins®. A 1-piece bottom disc is flanged for rigidity. Adjustable bin dividers can be inserted on 1" centers creating up to 24 compartments per shelf. Shelf capacity is 500 lbs. (evenly distributed weight).