Drive In Racking
What inventory policy does drive-in racking impose?
Standard drive-in racking imposes LIFO/FILO logic because the last pallet placed in a lane is the first pallet retrieved. It is unsuitable for lots that require strict expiry rotation unless the rack is configured as drive-through and the process is managed for FIFO flow.
When is drive-in racking a better choice than selective racking?
Drive-in racking is better when pallet counts per SKU are high, SKU variety is low, and space cost is high. Selective racking provides direct access to every pallet but yields materially lower storage density; drive-in eliminates most aisles and maximizes cube utilization.
What operational control is most important for raw-material tracking?
Lane-level discipline is the critical control: each lane should be assigned to one material, lot family, or batch rule, with strict WMS/location control so the physical LIFO/FIFO flow matches the system record. Without that discipline, mixed lanes create traceability failures.
Drive-in racking is a high-density pallet storage system where forklifts enter rack lanes to place and retrieve pallets on continuous rails, eliminating most aisles and maximizing cube utilization. It is used for homogeneous SKUs, bulk storage, and low-turnover inventory, normally operating on LIFO/FILO logic since the last pallet in is first out.
In a manufacturing facility, drive-in racking appears near production lines as a staging buffer for batch-produced materials such as steel coils, plastic granules, castings, or finished goods awaiting shipment. Because each lane is dedicated to one homogeneous material family, receiving can put away full truckloads quickly, and forklift travel distance drops when the same SKU is consumed in large batches. The rack converts former aisle space into storage volume, which is especially valuable in cold storage or high-rent buildings where every cubic metre affects energy and occupancy cost. A drive-through arrangement can support FIFO flow, making it a buffer between production, quality control, and shipping. The practical rhythm is simple: bulk receipts fill the lane from one end, operators retrieve from the front (LIFO), and inventory control relies on strict lane-level WMS discipline to prevent mixing lots.
SKU mix-up in a single lane: When operators place different materials in the same drive-in lane, traceability disappears and cycle counting fails, causing mispicks, wrong lot issuance, and record errors because the lane is designed for one homogeneous product family.
Stockout hidden by deep-lane density: A drive-in lane can look full when only the front pallet is retrievable, so an unplanned demand spike strands needed inventory deeper in the lane and creates line-side shortages due to LIFO sequence.
Forklift damage and bottlenecked receiving: Forklifts must enter the structure, so tight lane clearances, poor operator alignment, or high inbound peak volume can damage uprights and rails, slow receiving, and create dock congestion while pallets wait for lane assignment.