For the busiest and largest warehouses, pallet racking systems are usually treated as the centerpiece of the operation. Typically, pallet racking systems are made out of wood, metal, or plastic and hold inventory that is received in large boxes. Depending on the height, the boxes are placed on the pallet racking system with the help of a forklift or an automated mechanism.
There are a variety of sub-categories of pallet racking systems, including carton-flow racking, cantilever racking, coil racking, double-deep racking, drive-in racking, drive-through racking, high-bay racking, mobile racking, narrow aisle racking, pallet live racking, push back racking, shuttle racking, and vertical racking. Most often, warehouses will choose systems based on weight limits, flexibility, and whether or not the system demands a change in infrastructure