A steel structure pre shipment TPI checklist helps EPC buyers decide whether fabricated steel components are ready for packing, loading, and export. Pre-shipment third-party inspection is often the last practical chance to catch missing marks, damaged coating, incomplete documents, unresolved comments, or packing problems before the goods leave the factory.
This checklist is different from a general pre-shipment inspection checklist. It focuses on steel structure packages where component marks, bundle sequence, small parts, coating condition, quality records, and release status can directly affect site erection.
1. Confirm the inspection scope before the visit
The inspection notice should state what the third-party inspector will check. Typical pre-shipment scope includes finished component quantity, visual condition, dimensions if required, coating or galvanizing condition, component marking, packing method, loose parts, quality documents, and loading readiness.
If the inspection scope is unclear, the buyer may receive a report that confirms only general appearance while missing the items needed for shipment release. Define the scope before the inspector arrives, especially when several batches or containers are involved.
2. Match inspected items to the packing and shipment plan
The inspection should identify which component marks, bundles, crates, bolt packages, and small parts are included in the shipment. The inspector should compare the inspected items with the packing list, mark list, shipping list, and latest drawing revision.
For EPC projects, missing small parts can delay site work even when the main frames are acceptable. Anchor bolts, high-strength bolts, washers, nuts, clips, stairs, handrails, and connection plates should be checked against the shipment scope.
3. Check physical condition before packing or loading
The inspection should look for visible damage, deformation, missing holes, wrong marks, coating scratches, rust, galvanizing defects, weld repair areas, sharp edges, and loose or mixed parts. Each issue should be recorded with component mark, photo, affected quantity, and release impact.
| Inspection area | Pre-shipment check |
|---|---|
| Component marks | Readable, correct, and consistent with packing list. |
| Coating or galvanizing | No unapproved damage, repair status clear, evidence available. |
| Loose parts | Separated, labeled, counted, and packed by package or area. |
| Bundles | Protected, stable, marked, and matched to loading sequence. |
4. Review hold items and open comments
Before shipment release, all TPI comments and quality hold items should be reviewed. The checklist should show whether each item is closed, conditionally accepted, transferred to site, rejected, or still open. An open item should not disappear just because loading is scheduled.
If a hold item remains open, record who accepted the shipment risk and what evidence or action is still required. Related resource: steel structure inspection comment closeout checklist.
5. Check packing evidence
Pre-shipment inspection should confirm that packing protects the steel during handling, inland trucking, port movement, sea transport, unloading, and site storage. Evidence may include bundle photos, label photos, crate photos, waterproof protection for documents, small parts packing photos, and container loading sequence if loading has started.
Packing evidence should show marks clearly. Photos that do not identify the package, component mark, or container number are difficult to use later if the site reports missing or damaged material.
6. Review document readiness
Do not release shipment only on physical inspection if required documents are still missing. The pre-shipment package may include material certificates, welding records, NDT reports, dimension inspection reports, coating reports, NCR closeout evidence, packing list, mark list, loading photos, and TPI report.
The buyer should check whether documents match the inspected batch. A certificate or report from another shipment should not be used to close a pre-shipment hold item.
7. Confirm loading readiness
Loading readiness means the inspected goods can move into packing or container loading without creating new risk. Check whether bundles are accessible, labels are visible, small parts are complete, packing materials are ready, container plan is approved, and weather or yard conditions will not damage coatings during loading.
If loading starts after inspection, decide whether the third-party inspector must witness loading or whether loading photo evidence is sufficient. For sensitive packages, witnessed loading may reduce later disputes.
8. Use a pre-shipment TPI release scorecard
A simple scorecard helps decide whether the shipment can proceed. It also gives procurement a consistent record for supplier review after delivery.
| Review item | Suggested weight | Evidence to check |
|---|---|---|
| Inspection scope | 15% | Inspection notice, report scope, batch and mark list. |
| Physical condition | 20% | Photos, defect list, repair status, visual acceptance. |
| Packing readiness | 20% | Bundle protection, labels, small parts, packing photos. |
| Document readiness | 20% | Quality records, TPI report, packing list, release records. |
| Open item control | 15% | Closed, conditional, transferred, held, or rejected status. |
| Loading readiness | 10% | Container plan, loading sequence, witness requirement. |
Warning signs
- The inspection report does not identify inspected component marks or shipment batch.
- Open comments remain unresolved while loading is requested.
- Packing photos do not show labels, bundle numbers, or small part package IDs.
- Quality documents are incomplete or do not match the inspected shipment.
- Coating damage is accepted without repair evidence or concession.
- Loading begins before release status is confirmed.
Buyer note
Pre-shipment TPI should produce a clear release decision, not only a visit report. Before approving shipment, confirm that the inspected scope is traceable, open items are controlled, packing evidence is usable, and the final release status is recorded.