011. Buying a footprint that lets product overhang
This is the expensive one, and it is almost always invisible until a load arrives crushed. When product hangs over the pallet edge, the deck stops supporting it and the case corner carries load it was never designed to carry.
| Overhang | Compression strength lost | What you see |
|---|---|---|
| 0.5 in | ~10% | Nothing, usually |
| 1 in | ~20% | Corner crush on the bottom tier |
| 2 in | ~32% | Load failure risk in transit |
| 3 in | ~43% | Do not ship it |
The fix is often cheaper than people expect. Before ordering a custom footprint, check whether a top cap, a different case tile or a slip sheet solves it. A sixty-cent accessory frequently beats a twenty-eight dollar custom deck.
022. Writing '4-way' and meaning it
A notched stringer pallet gives forklift access from four sides. It does not give pallet jack access from four sides, because a jack's load wheels cannot drop through a notch that is only an inch and a half deep.
If your operation runs manual jacks in tight aisles and someone specified 'partial 4-way' without noticing the word partial, you will find out on the receiving dock. True four-way jack access requires block construction, which costs 15–25% more and is worth every cent in that situation.
033. Never specifying squareness
I have read hundreds of pallet purchase orders. Perhaps five specified a squareness tolerance. It is the criterion that determines whether a pallet stacks cleanly, sits properly on a rack beam and passes through a conveyor without jamming — and it is essentially never written down.
Checking it takes five seconds: measure both diagonals with a tape. If they differ by more than an inch, the pallet is out of square. Put a number in the PO — 0.5 inch for Grade A, 0.75 for Grade B — and sample ten units per five hundred on arrival.
044. Designing to static capacity when the load gets racked
Every pallet has three load ratings and they are not interchangeable. Static is what it holds at rest on a floor. Dynamic is what it holds while a forklift moves it. Racked is what it holds spanning two beams with nothing underneath.
Racked is always the lowest and frequently under a third of static. A Grade A recycled 48x40 rated 6,000 lb static holds about 2,000 lb racked. If someone read the static figure and specified accordingly, there is a load sitting on a beam right now with three times its safe weight on it.
There is a second trap inside this one: orientation. Rack beams should support the stringers along their length. Rotate the pallet ninety degrees and the thin deck boards do the spanning instead, costing 40% or more of the racked rating. The full breakdown is in weight and load capacity.
055. Forgetting that dunnage is packaging
This one only bites on export shipments, and when it bites it stops a container. ISPM-15 covers solid wood packaging over 6 mm thick — which includes the blocking and bracing your team cut from untreated 2x4 on the loading dock that morning.
Nobody thinks of loose dunnage as packaging. Border inspectors do, and it is often the first thing they see when the doors open. The pallets can be perfectly compliant and the shipment still gets held.
The same logic catches internal bracing inside plywood crates. The plywood is exempt; the solid cleats holding it together are not. ISPM-15 explained covers the whole scope, and the stamp decoder will read a mark if you are unsure whether yours is valid.
06The pattern underneath all five
Every one of these is a specification written from the catalogue rather than from the load. Somebody picked a pallet that looked right, or that the last supplier sent, and the actual handling conditions were never described to anyone who could act on them.
When we quote, we ask about the load, not the part number: weight, distribution, handling method, whether it is racked, whether it comes back, whether it crosses a border. Five minutes of that conversation prevents all five of these.
