Create a 4-tier unit that will effectively organize your items. Pick your shelf and post size, then add casters if you need mobile storage. Ideal for commercial kitchens, restaurants, and climate-controlled and refrigerated environments such as walk-in coolers and freezers. shelves of the same size can be used together on one unit. Call us to order customized kits at no additional cost! Not enough storage? For additional 15"d T-Bar Aluminum Shelves, clickHERE. Need a different height? Call our friendly, helpful sales staff at 1-800-637-9508.