Drive-In racking is used where high-density storage is required. Pallets are stored in a block system with two blocks generally served by one operating aisle.
The trucks drive into the racking to load or retrieve pallets, which stored on cantilevered rails running throughout the system. The first pallet in is the last one out FILO (First in, last out) unless a Drive-through system is used whereby pallets can be loaded or retrieved from either side.
Forklifts trucks drive into lanes on racking specially built to provide support to the pallet along the pallet sides. Stacking often to 10 meters high and 4 or 5 but occasionally even more than 10 deep. This system can provide very dense storage capacity, often low in access and rotation of products. As the truck enters the racking, special precautions apply to ensure the compatibility of design between the truck, pallet and load and the racking. Flat floors are advantageous. Usually the rack design incorporates a stability structure at the rear of the rack and therefore drive in indicates single access from one side. Drive through requires this same stability to be provided by a variation in design.
Advantages
Very dense storage, ideal for few SKU with high pallet quantities.
Prevents product crushing, and offers free damage storage.
Accessible to single or double pallets stacked on floor.
Low capital costs using conventional handling equipment.