Steel structure manufacturer since 2009 · 8 fabrication bases in China
Design drawings say what the structure must be. Shop drawings say how each piece is made. Confusing them is a common cause of delays and claims.
| Set | Made by | Shows | Used for |
|---|---|---|---|
| Design / IFC | Engineer of record | Member sizes, grades, loads, typical connections | Pricing and detailing |
| Shop drawings | Fabricator’s detailer | Every piece: dimensions, holes, welds, marks | Fabrication |
| Erection drawings | Fabricator’s detailer | Marking plans, bolt lists, sequence | Site |
Shop drawings are submitted to the engineer of record, who checks them against the design and returns them coded (approved, approved with comments, revise). Fabrication starts only after approval.
Responsibility stays where it was: approving shop drawings does not transfer design responsibility to the fabricator, unless the contract says so.
Send drawings or a brief. An engineer replies within 1 working day.
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