Storage Steel trays are available in two heights, 5" and 12", for 39" wide units only. They slide out for rapid re-arrangement or multi-stacking. Rest on support rails. Available in Blue color only. Dividers install without nuts or bolts. 05"H x 39"W x 16"D Storage Trays for R3000 Industrial Shelving Blue (SKU# ST.163905PT2)