# Wood packaging rules for imports: keeping pallets and crates from stopping your shipment | LandEdgeHQ

Source: https://landedgehq.com/blog/2026-10-23-wood-packaging-rules-imports-ispm15/

Cross-border operations guide · October 23, 2026


More shipments are delayed by their pallets than by their paperwork. Wood packaging material is regulated worldwide to stop plant pests, and non compliant wood can mean treatment, destruction, or re export of the whole consignment. This guide explains the ISPM 15 standard and the checks importers should put in supplier instructions.

## The mark is the passport

The ISPM 15 mark is a specific stamp: the standard's symbol, country code, producer code, and treatment code, legible and on the required faces of the packaging. A supplier's assurance that wood was treated, without the mark applied by a licensed producer, does not clear an inspection, because the officer at the border can only act on evidence attached to the wood itself. Photographs of marks, requested from suppliers before dispatch for new lanes, are a cheap way to learn whether the chain understands the rule.

Some wood is outside the standard: thin wood below the thickness threshold, processed wood products such as plywood and particle board in many implementations, and certain other categories are exempt because their manufacture removes the pest risk. Exemptions are specific, though. Assuming a wooden crate is exempt because it looks manufactured is how a consignment ends up in a treatment yard. Check the category against the destination's current plant health guidance, in writing, per packaging type.

## Supplier instructions carry the rule

Most wood failures originate with a supplier or consolidator who was never told, or who swapped packaging at the warehouse door. Purchase and packing instructions should name the requirement plainly: all solid wood packaging ISPM 15 treated and marked, no unmarked repairs or added dunnage, and bark and pest free condition on arrival. Where a forwarder consolidates and repacks, the instruction must follow the goods contractually, because the last hands to touch the wood decide the shipment's fate.

Reused and repaired pallets are the grey zone. A repaired unit with replacement wood needs that wood treated and the unit remarked under the rules, which in practice means many casually repaired pallets in circulation are non compliant however honest their history. Importers with regular lanes should specify pallet standards with their pool or supplier, and treat a bargain pallet source as what it often is: a future treatment bill with a delivery date.

## When packaging fails inspection

Outcomes vary by destination and severity, from supervised treatment of the packaging, to separation and destruction of the wood, to refusal of the consignment in serious or infested cases. All of them cost time, handling, and storage, and the goods' own delivery promise absorbs the delay. Live pest findings escalate everything, including scrutiny of the importer's next shipments, which is why one sloppy lane can raise costs across the whole import programme for months.

If a failure happens, document the cause precisely before paying and moving on: unmarked wood, wrong mark, infested wood, exempt category misjudged. Each cause has a different owner in the chain and a different fix. Importers who log packaging failures like quality defects, by supplier and lane with rates, watch the problem shrink. Those who log them as bad luck meet the same pallet again, because bad luck, in logistics, is usually an unnamed process repeating itself faithfully.

## Plastic and alternatives are a calculation, not a reflex

Switching to plastic or fully processed wood packaging removes ISPM 15 from the lane, at a higher unit cost and with its own handling and sustainability questions. For high value, time critical, or repeatedly failing lanes the maths often favours the switch. For low value bulk on a compliant wood supply, it usually does not. Run the comparison with real failure costs included, treatment, delay, and the management time each incident consumes, rather than comparing pallet prices alone.

Whatever the material decision, put packaging on the import checklist as a first class item, beside classification, value, and origin. It is the only compliance element an inspector can assess by looking at the shipment before opening a single document, and it decides, in the first five minutes, whether this consignment's day is routine or memorable. Importers rarely get to choose which of their details an inspector meets first. With wood packaging, they do.

Keep reading: [Forced labour rules for importers: building a supply chain file that can answer the question](https://landedgehq.com/blog/2026-10-23-forced-labour-rules-importer-evidence), [Rules of origin and supplier declarations: proving where your goods really come from](https://landedgehq.com/blog/2026-10-23-rules-of-origin-supplier-declarations-guide), and [Importer Security Filing basics: the 10 plus 2 data ocean carriers need before loading](https://landedgehq.com/blog/2026-10-23-importer-security-filing-basics-importers) cover the nearby cases in this series.

## Frequently asked questions

## What is ISPm 15 in plain terms?

The international standard for wood packaging in trade: solid wood pallets, crates, and dunnage must be treated by an approved method and carry the standard's mark from a licensed producer, so plant pests do not travel with the packaging.

## Does a supplier promise that wood was treated satisfy an inspector?

No. Border officers act on the mark on the wood itself. Unmarked wood is treated as untreated whatever the emails say, which is why importers should request mark photos from new suppliers before dispatch.

## Are plywood crates exempt?

Processed wood such as plywood is exempt in many implementations because manufacturing removes the pest risk, and thin wood below a threshold is also outside the standard. Exemptions are specific, so each packaging type should be checked against current destination guidance.

## When does switching to plastic packaging pay?

When failure costs, treatment, delays, storage, and management time on a lane, plus its value and time sensitivity, outweigh the higher unit cost. The comparison should use real incident costs, not pallet prices alone.