With interlocking dunnage racks like these, however, you can lock your dunnage racks together and ensure that they stay in place until you’re ready to move them. This simple but ingenious feature helps eliminate gaps between racks, uneven storage surfaces and shifting racks that can lead to spills or damage to your products. Here at FoodServiceWarehouse.com, we offer a wide variety of interlocking dunnage racks that can be arranged in almost any fashion to fit almost any existing storage system or layout.