Push-back racking
Push-back racking loads pallets onto inclined nested carts from a single aisle: each new pallet pushes the one behind it further back, and gravity brings the front pallet forward again as they're unloaded. It sits between double-deep and drive-in on density, without a forklift ever entering the lane.
Last updated 2026-08-23
Where it sits on the axis
Push-back trades selectivity for density in a specific, mechanical way. A forklift always works from the front of the lane — it never drives inside the structure the way drive-in requires — but the lane itself holds two to typically four or five pallets deep on nested carts running down a slight incline. That lands push-back between double-deep and drive-in on the density line: more depth than double-deep gives you, less than a full drive-in bay, with an access pattern that stays entirely at the aisle face. Whether that trade beats going all the way to drive-in for a given site is really a question of how much depth you need against how much in-lane risk you're prepared to accept — the two systems compared directly sets that out.
How the mechanism actually works
Each pallet sits on its own cart. Push a new pallet in and it shoves the whole stack back one position on the rails; pull the front pallet out and gravity lets the next cart roll forward to take its place. Nothing needs powered assistance — the incline does the work — which is the main thing that separates push-back from shuttle racking, where a powered cart does the same job under remote control.
LIFO, and why that matters here
Push-back is LIFO, the same as drive-in and double-deep: the last pallet pushed in is the first one pulled back out. Unlike drive-through or pallet flow, there's no way to get FIFO out of a push-back lane — the loading and unloading happen from the same end by definition. Any SKU that needs strict first-in-first-out rotation belongs somewhere else in this silo; push-back suits stock where LIFO is a fair trade for the density and the single-aisle convenience.
The stock profile it suits
Push-back fits a mid-range SKU profile: more pallets per SKU than a pure selective or double-deep layout justifies, but not so many that dedicating a full drive-in lane to one product makes sense. It also suits sites where building access only allows a single working aisle — push-back gets meaningful density without needing the second face that drive-through demands.
- Moderate pallets per SKU — deeper than double-deep, shallower than a typical drive-in run
- Single-aisle access only
- LIFO rotation acceptable for the product
What it costs you
Push-back carries more moving parts than any static racking in this silo — rails, carts, wheels — which means more to check at each racking inspection and more that can wear or jam over time compared with a welded selective or drive-in frame. It's also more expensive per position than double-deep for a similar depth, because you're paying for the cart mechanism as well as the steel. The payoff is real: a forklift operator never leaves the aisle face, which removes the in-lane manoeuvring risk that makes drive-in unforgiving, while still getting several pallets deep out of a single aisle.
| System | Typical depth per lane | Rotation | Forklift enters lane? |
|---|---|---|---|
| Double-deep | 2 pallets | LIFO (per pair) | Partially — deep-reach forks only |
| Push-back | 2–5 pallets | LIFO | No — stays at aisle face |
| Drive-in | Many pallets | LIFO | Yes — drives inside the structure |
Common questions
- Is push-back racking FIFO or LIFO?
- LIFO. Pallets load and unload from the same end of the lane, so the last one in is always the first one out.
- How is push-back different from drive-in racking?
- Push-back keeps the forklift at the aisle face and lets nested, inclined carts move the pallets; drive-in requires the forklift to drive inside the rack structure itself. Push-back typically holds fewer pallets deep than a drive-in lane.
- How is push-back different from shuttle racking?
- Push-back moves pallets with gravity and nested carts, no power involved. Shuttle racking uses a powered, remote-controlled cart to do a similar job, usually across greater lane depths.
- Does push-back racking need special maintenance?
- It has more moving parts than static racking — carts, wheels and rails — so it needs those mechanical components checked as well as the usual frame and beam condition covered in a general racking inspection.
Part of our guide to pallet racking types.