allows a lift truck to drive within the rack frame to access the interior loads; but, again to avoid double-handling, all the levels of each lane must be devoted to a single sku. With drive-in rack the put-away and retrieval functions are performed from the same aisle.
With drive-through rack the pallets enter from one end of the lane and leave from the other, so that product can be moved according to a policy of First-In-First-Out (FIFO). Drive-in/through rack may be thought of as floor-storage for product that is not otherwise stackable. It does not enable the flexibility of access that other types of pallet rack achieve. In addition, there are some concerns; for example, in this rack each pallet is supported only by the edges, which requires that the pallets be strong. In addition, it requires a more skilled forklift driver to navigate within the lane, and such a person will be more expensive.