On this page
- 1. Define the product at the stage being purchased
- 2. Turn a moisture limit into an inspection method
- 3. Agree what an inspection result means
- 4. Separate receipt from technical acceptance
- 5. State delivery, payment and dispute arrangements separately
- 6. Keep the approved specification connected to production
- References and next steps
Prepared by LEFAMI · Reference review: 25 October 2026
A shipment may have the expected number of packages and still fail the buyer's intended use. The buyer and seller need a shared inspection language before production starts. This guide suggests how to describe that agreement. It does not prescribe universal timber tolerances, moisture limits, sampling standards or pallet load ratings.
1. Define the product at the stage being purchased
Identify whether the order is for rough-sawn material, kiln-dried boards, planed stakes, assembled silt fence or finished pallets. State the final required dimensions and the stage at which they are to be measured. Rough blanks and finished goods should not share an ambiguous dimension description.
Agree the quantity unit and calculation basis. Pieces, cubic metres and weight describe different measures. If volume is used, record the dimensional basis and agreed rounding. If a board is sold before planing, do not evaluate the price as though it necessarily includes the same finished section as a planed product.
For assembled silt fence, specify the timber, fabric or mesh, fastening, stake number and spacing, roll or bundle arrangement and labelling. The performance of the assembly cannot be described solely by the timber dimensions.
2. Turn a moisture limit into an inspection method
The specification should explain the target, measurement method, sampling locations, instrument suitability, timing and result-recording procedure. Agree how a different result at the destination will be investigated, including changes in storage and exposure after the earlier measurement.
Do not use a single undocumented meter reading as proof of an entire shipment's condition. Keep the package or lot reference, inspection date and measurement record. An agreed independent check can help resolve disagreement, but the scope and decision rules must be established rather than assumed.
Moisture inspection also needs to remain separate from plant-health treatment. A commercial drying target is not, by itself, a complete record of a regulated treatment process or an authorization to apply a treatment mark. See the packaging guide for that distinction.
3. Agree what an inspection result means
| Item to agree | Practical question |
|---|---|
| Population and sampling | Which lots and packages are represented by the sample? |
| Characteristics | Which dimensions, moisture readings, defects or assembly details are checked? |
| Method | How are measurements made and recorded? |
| Decision | What makes the lot accepted, rejected, reworked or subject to further checking? |
| Responsibility | Who inspects, signs and communicates the result? |
These are the building blocks of a plan, not a published acceptance standard. If the contract cites a standard, confirm its exact title, edition, scope and agreed application. Do not invent a sample size or acceptance level merely to make the contract look technical.
4. Separate receipt from technical acceptance
Record whether a signature confirms the number of packages, visible condition, measured quantity or technical quality. If a package is received without opening, the record should say so. Agree who may reserve a question for a later inspection and how the supplier is notified.
For an overseas shipment, distinguish a pre-shipment inspection from checks at destination. Explain what happens if the goods are exposed, repacked or changed between the two. Photos and measurement records are useful when they identify the correct package and condition; unlabelled pictures are much harder to reconcile.
5. State delivery, payment and dispute arrangements separately
Record the named place or port and the selected trade rule and edition. ICC separates rules for any transport mode from rules for sea and inland-waterway transport, including FOB and CIF. Choose the rule appropriate to the agreed handover and route; a familiar abbreviation is not enough.
The contract should separately address payment, ownership, inspection and remedies. Agree which law and dispute mechanism apply to the international transaction. This English guide does not assume Vietnamese domestic commercial rules automatically govern every overseas contract.
For a possible defect, agree the notice method, evidence to preserve, response process and available next steps. Avoid a generic promise that every issue will be solved by replacement when the parties have not agreed inspection, freight responsibility or the treatment of affected goods.
6. Keep the approved specification connected to production
Give revisions a reference and identify who may approve a change. If an order changes section size, moisture criteria or assembly spacing, check whether the quotation, production instruction and inspection plan were all updated. A change accepted by a sales contact should not disappear before the factory receives the instruction.
Before shipment, reconcile the approved version with the inspection and packing records. Keep unresolved exceptions visible. “Ready to load” should reflect the agreed release process rather than a conclusion inferred from one signed document.
References and next steps
- ICC: official Incoterms 2020 overview.
- ICC Digital Library: rule groups and sea / inland-waterway rules.
- The inspection framework, document organization and examples in this guide are LEFAMI's practical suggestions. Product limits and acceptance rules must be agreed for the transaction.
Create a document-review checklist, read shipping-document coordination, or explore kiln-dried acacia timber and wooden stakes.