Guides / Choosing a Supplier
What to Check When the Plywood Container Opens
September 21, 2026
The hour after the doors open decides whether a problem is a claim or an argument. Almost every plywood dispute that fails, fails on documentation rather than on the facts.
Before anything is unloaded
- Photograph the sealed doors, the seal number and the container number
- Photograph the stow as the doors open, before a single bundle moves
- Note the condition of the wrapping, the desiccant and any water marks
Two minutes, and it is the difference between a claim and a story.
The first hour checks
| Check | How | What it catches |
|---|---|---|
| Thickness | Caliper, five points per sheet, ten sheets from different bundles | The most common gap between order and delivery |
| Sheet size and squareness | Tape, diagonal measurement | Short or out of square sheets |
| Count | Sheets per bundle against the packing list | Short shipment |
| Core | Cut one sheet across, photograph the edge | Species substitution, gaps, ply count |
| Glue line | Same cut sample, in daylight | Bond downgrade, see MR, melamine or WBP |
| Moisture | Meter, several sheets | Panels packed wet, the cause of later warping |
| Face grade | Against your retained sample, both sides | Grade substitution, see plywood face grades |
| Marking and labels | Against the order and the market requirement | Missing certification labels |
Record every reading with the sheet it came from. A list of numbers is evidence. A sentence saying the panels were thin is not.
Claimable, arguable, yours
Claimable. Measurable against the order: thickness outside the stated tolerance, wrong core species, wrong bond, wrong grade against the approved sample, short count, delamination, damage inside intact packing.
Arguable. Things that depend on when they happened: cupping, surface marks, edge damage on the outer sheets, moisture related movement. The seal photographs and the first hour readings decide which way these go.
Yours. Warping after weeks in a damp warehouse, damage from leaning sheets, movement because the panels were cut the day they arrived. Those are storage, and they are covered in packing and storing plywood.
Documenting a claim that holds
- Photographs with a scale in frame: a tape, a caliper, a ruler
- The retained sample photographed next to the delivered panel, both sides
- Measurement sheets with bundle numbers
- The packing list and the pre shipment inspection report, if there was one
- A single written summary that states what the order required, what arrived and what you want done
Send it within days, not weeks, and send it once, complete. A claim that arrives in five emails over a month reads as an attempt to renegotiate the price.
What to ask for
Be specific, because a mill can act on a specific request. Rework, sort and replace the failing bundles, a discount tied to the measured shortfall, a credit against the next order, or rejection. Naming the remedy is what turns a complaint into a decision, and a mill that settles the first claim properly is worth keeping. The inspection step that prevents most of this is in third party inspection.
For everything that comes before the container opens, read our guide to import plywood from Vietnam.
Frequently asked questions
What should I check first when a plywood container arrives?
Photograph the doors before anything is unloaded, then check thickness with a caliper at several points, cut one sheet to look at the core and glue line, and measure moisture content. Do it before the container leaves your yard and before the panels are mixed into stock.
How long do I have to raise a claim?
Whatever your contract says, and in practice a few days. Every day the panels sit in your warehouse weakens the claim, because the mill can argue the damage happened after delivery. Photograph first, argue second.
Which defects are actually claimable?
Anything measurable against the order: thickness outside tolerance, wrong core, wrong bond, wrong grade against the approved sample, short count, delamination. Cupping after two weeks in your warehouse is much harder to claim, which is why the first hour matters.
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