Drive-in racking
Drive-in sits at the density end of the axis this whole silo runs on: the forklift drives inside the rack structure itself, between rails that carry the pallets, and gives up individual pallet access almost entirely in exchange for the best floor density of any forklift-served system.
Last updated 2026-08-23
The far end of the density axis
Drive-in racking removes aisles from most of the floor. Instead of one aisle per row, a block of racking shares a single entry aisle, and the forklift drives directly into the lane, along rails that support the pallets from the sides rather than a beam underneath each one. Compared with selective racking, which gives up roughly half its floor to aisles, drive-in can push density to something close to double that — the honest trade-off is that almost none of the stock inside a lane is individually reachable.
That's the whole deal: density bought by removing access, not by any cleverness in the components themselves.
Last in, first out — by construction
Drive-in is a LIFO system, full stop. Pallets go in from the open end and come out the same end, so the last pallet loaded into a lane is the first one out. There's no way to pull a pallet from partway down a lane without first clearing everything in front of it. Any stock that needs strict FIFO rotation is a poor match for drive-in — that need is exactly what pushes people toward pallet flow racking instead, which is drive-in's density with FIFO added back in.
The stock profile it suits
Drive-in earns its keep at the opposite end of the SKU spectrum from selective racking: a small number of SKUs, each held in real depth, where the same product sits many pallets deep in a single lane. Cold storage, seasonal bulk, and single-product manufacturers running large batches are the classic fits.
- Low SKU count, high pallets per SKU
- Same product loaded and cleared in batches, not picked individually
- LIFO rotation is acceptable — product doesn't degrade or date-expire in a way that punishes it
Drive-through: the variant that opens both ends
Drive-through racking is the same rail structure open at both ends instead of one. Load from one side, unload from the other, and you get true FIFO — first pallet in is the first one pushed out the far end — without adding pallet flow's rollers or gravity lane. The cost is that a drive-through block needs clear access on two sides of the building rather than one, which isn't always available, and it still shares drive-in's core limitation: a forklift working inside a lane, with all the manoeuvring constraints that implies.
What it costs you beyond LIFO
Because the forklift drives inside the structure, drive-in is unforgiving of layout and truck mismatches. Rail spacing has to match the truck and pallet exactly, and a driver working inside a lane has far less room to correct a bad approach than one working an open aisle — which raises the stakes on forklift contact with the racking specifically inside the lane, where a knock isn't a bent frame at one bay but a rail supporting several pallets deep. It also concentrates risk: damage to a rail can take an entire lane out of use rather than a single position.
Density this high also means the floor underneath has to be genuinely flat and level along the full run — see floor slab — since the rails, not adjustable beams, are doing the load-bearing work.
Sites weighing drive-in against a shallower, forklift-out-of-the-lane alternative usually land on drive-in versus push-back as the real decision, since push-back keeps LIFO and most of the density without the in-lane manoeuvring risk.
Common questions
- What's the difference between drive-in and drive-through racking?
- Drive-in is open at one end only, so it's LIFO — last pallet in is the first out. Drive-through is open at both ends, giving true FIFO, but needs clear building access on two sides.
- Can drive-in racking handle mixed SKUs in one lane?
- Not well. Mixing SKUs in a single lane means digging past unrelated stock to reach what you need — drive-in works best with one SKU, or one batch, per lane.
- Why is drive-in racking riskier for forklift damage?
- Because the truck operates inside the rack structure rather than in an open aisle, with less room to correct a misjudged approach, and a single damaged rail can affect every pallet in that lane rather than one position.
- How much more pallet capacity does drive-in give over selective?
- It varies with lane depth and building shape, but drive-in commonly gets close to double the density of selective racking for the same footprint, because it removes most internal aisle space.
Part of our guide to racking configurations.