What AQL level should I use for a dining chair inspection?

AQL (Acceptance Quality Limit) sets how many defective units are acceptable in a random sample. For contract dining chairs most buyers use AQL 2.5 for major defects and AQL 4.0 for minor, with the sample size fixed by order quantity under General Inspection Level II. A single critical defect (structural or safety) is usually an automatic reject regardless of the AQL score.

When in the production cycle should the inspection happen?

Book the pre-shipment inspection when 80-100% of units are finished and at least 80% are packed. Too early and the sample is not representative; too late and you cannot correct a systemic fault. Agree the date with the factory before you release the final balance payment, so the inspection result can gate that payment.

Can I inspect chairs without a third-party company?

Yes. A factory self-inspection or a live video walkthrough is better than nothing, but a neutral third party (SGS, TUV, Bureau Veritas or a local Foshan inspection agent) removes bias and gives you a document you can use in a claim or dispute. Many buyers run a factory self-check at 50% completion and a third-party PSI at the end.

Pre-Shipment Inspection Checklist: How to QC Dining Chairs Before They Leave China

Published by JIANGPIN · Dining chair manufacturer in Foshan, China

When you import dining chairs from China, the container is often halfway across the ocean before you ever see the goods. A pre-shipment inspection (PSI) is the last practical checkpoint that lets you reject a bad batch before it ships and becomes your problem on arrival. As a Foshan chair manufacturer, JIANGPIN welcomes third-party PSI on every order, and this guide walks through what to check, what the report should contain, and how to turn inspection into a contract lever rather than a formality.

1. What a pre-shipment inspection actually covers

A PSI happens when 80–100% of production is complete and at least 80% is packed. An independent inspector draws a random sample — usually to AQL 2.5 for major defects — and checks each unit against your approved sample and purchase order, not against a generic standard. Before the inspector arrives, send them the right reference for every style you ordered: review our solid wood chair catalogue and the stainless-steel range so measurements target the exact spec you bought.

A good PSI is not a single pass/fail glance; it is a structured check across dimensions, materials, structure, packaging and paperwork. The more precisely your purchase order defines each of those, the more useful the report becomes — vague POs produce vague reports that protect no one.

2. Dimensions, tolerances and the signed sample

Every chair is measured against the signed sample: seat height, seat width and depth, back height, and stacked height for stacking models. Tolerances are where buyers get burned — a 1 cm drift on one chair is invisible, but across a 200-seat floor it reads as a misaligned, unprofessional row. Pair each chair with its table early so the inspector confirms the gap: our commercial table range lists matching heights, and the bar stool specs define the clearance you must hold between seat and counter.

Write the tolerances into the PO in millimetres, not “about the sample.” A written +/- number is something an inspector can measure and you can enforce; a feeling cannot survive a dispute.

3. Material and finish checks

For wood, confirm the species, the finish colour against your approved chip, and coating evenness. For metal, check weld smoothness, coating thickness and scratch resistance, since a thin or uneven powder coat is the first thing that rusts in a humid venue. Our iron-frame chairs and outdoor aluminium chairs are finished on proven lines, but the PSI still verifies that the production batch matches the sample batch rather than a looser run.

Finish defects are the most common “major” call on a furniture PSI, so give the inspector good light and a defined scratch/colour standard. Catching a colour shift here costs a phone call; catching it after delivery costs a return container.

4. Structural and load testing

A dining chair is a load-bearing product, not decor. The inspector should run a static load test (commonly 100–150 kg on the seat for contract use), a backrest test, and a fatigue or dynamic test if your market requires EN 16139 or BIFMA. Our leisure and lounge models and contract restaurant chairs are built to these contract standards — ask the factory to show the test method so the PSI replicates the same load and cycle count.

Treat any structural or safety failure as a hard stop, not a negotiation point. A chair that fails a load test is a liability claim waiting to happen, and no discount makes that acceptable for a commercial floor.

5. Packaging, labeling and quantity

Inspect carton count, inner packing (EPE, corner protectors, frame separators for stacking chairs), and carton marking: SKU, quantity, gross weight and your shipping mark. Wrong carton counts are the most common “small” error and the most expensive to fix once the vessel has sailed. If your order mixes seating heights on one floor, confirm the tatami and floor chair specs are packed and labelled separately so the wrong model never lands in the wrong room.

Photograph the packed cartons and the container loading, not just the loose chairs. A clean loading photo closes the loop between “inspected at the factory” and “what arrived at the port.”

6. The inspection report and the defect decision

A real PSI report carries photos (defect close-ups, overall line, packing), a measurements table, the AQL sampling result, and a clear pass/fail call. Use it as a contract lever: a “minor” fail lets you negotiate a discount or a free replacement batch; a “major” fail (structural, safety, or wholesale spec miss) should stop the shipment and trigger a rework. Before you even book the container, run the same checks on a prototype through our sample and QA process so mass production is measured against the exact chair you already approved.

Time the inspection before the final balance payment. The single strongest leverage a buyer has is the ability to withhold the last payment until the report shows pass — build that gate into the contract from day one.

Conclusion

A pre-shipment inspection is cheap insurance against an ocean of wrong chairs. Define the spec in writing, hold the factory to the signed sample, let an independent PSI be your last gate before the container seals, and keep the final payment as the lever that enforces it. JIANGPIN supports third-party inspection on every Foshan order and ships stock chairs from a 6-piece MOQ — request a quote with your QC requirements and we will build inspection into the production plan, not bolt it on afterwards.