1. Geometry
Grid dimensions, levels, roof slopes, openings, crane data, and building interfaces.
Quotation Input Guide
What Drawings Should Buyers Send for a Steel Structure Quotation?
A useful quotation package lets every production resource price the same structure, supply boundary, coating system, packing method, and delivery basis.
Buyer Guidance
Send the latest general arrangement drawings, plans, elevations, sections, member schedules, connection intent, material grade, coating requirement, project country, delivery basis, and required date. Mark preliminary information clearly. If complete fabrication drawings are unavailable, YYN can first identify missing inputs and state the assumptions used for a budget review.
Drawing Package
Organize quotation inputs in four folders.
2. Steel Members
Member sizes, material grades, connection intent, bolt grades, and secondary steel.
3. Finish and Packing
Surface preparation, coating, fireproofing boundary, color, marking, and export packing.
4. Commercial Basis
Destination, Incoterm, required date, drawing status, inclusions, exclusions, and document list.
Revision Control
One quotation must refer to one controlled drawing issue.
| Before pricing | Record on the inquiry | Why it matters |
|---|---|---|
| Drawing issue | File name, revision, date, and preliminary or approved status | Prevents mixed revisions |
| Quantity basis | BOQ, model take-off, or supplier estimate | Explains weight differences |
| Open questions | Missing loads, connections, finishes, or interfaces | Makes assumptions visible |
| Change rule | How later revisions affect price and schedule | Controls post-quote changes |
Buyer Checklist
Check the inquiry package before sending it.
A short controlled package is more useful than a large folder with mixed revisions. Name the current issue and mark every unknown item as preliminary or open.
Minimum quotation inputs
- Current plans, elevations, sections, and general arrangement.
- Project country, site conditions, and responsible design basis.
- Supply boundary, exclusions, and quantity or take-off basis.
- Steel grade, coating, fireproofing, packing, and document needs.
- Destination, delivery basis, required date, and revision register.
Scope and Responsibilities
Local engineering approval remains with the buyer's appointed professionals.
YYN can coordinate drawing questions, quotation assumptions, and China-side production information. The buyer's appointed engineers remain responsible for design criteria, local code compliance, approvals, site interfaces, and installation engineering.
Quotation FAQ
Questions buyers ask before sending drawings
Can I request a budget review with incomplete drawings?
A preliminary quotation can be prepared when missing information and pricing assumptions are stated clearly; it becomes formal after the controlling basis is confirmed.
Why do quotations show different steel tonnage?
Suppliers may use different drawing revisions, take-off methods, connection assumptions, or supply boundaries. Compare the stated basis before comparing price.
Should I send editable CAD files?
PDF files are useful for controlled review. DWG, IFC, or model files can be added when they are authorized and relevant to the required work.
Apply this guide to your project
Send the available documents and the decision you need to make next.
YYN will identify missing inputs, open assumptions, and the next sourcing or production-review step without replacing project engineering.
