Direct Answer
Pre-shipment inspection verifies: dimensional conformance to shop drawings (length, hole pattern, cope dimensions), weld visual inspection pass, surface preparation and primer DFT compliance, piece mark legibility, correct assembly marking, and load organization matching the delivery schedule. Discovering an error after shipping is exponentially more expensive than catching it at the shop.
Full Explanation
Pre-shipment checklist elements: (1) Dimensional check — verify overall length, connection plate location, and hole pattern on at least a sample of each assembly type. (2) Weld check — visual inspection of all accessible welds; confirm no obvious cracks, undercut, or incomplete fusion. (3) Coating — measure DFT in key locations, verify no bare areas. (4) Markings — piece mark, heat number, and orientation marks are legible and correct. (5) Assembly completeness — all bolt holes are drilled, all weld-attached items are present. (6) Load organization — assemblies are sorted and blocked on the truck in delivery-sequence order. (7) Shipping documentation — packing list matches the load; delivery address and contact are correct.
What This Means for Your Shop
A thorough pre-shipment inspection adds 30–60 minutes per truck load. The cost of discovering an error at the job site — crane standby, ironwork crew standby, emergency re-fabrication — typically exceeds $5,000–
Common Mistakes
Skipping pre-shipment inspection under schedule pressure. The pressure to ship fast is real; the cost of shipping wrong material is higher. Establish pre-shipment inspection as a non-negotiable step in your shipping procedure.
Recommended Process
Implement a pre-shipment inspection hold: no truck leaves until the shipping supervisor has signed off on the packing list verification and spot-checked dimensional and marking compliance. Document the sign-off.