Commercial door projects can fail during specification, production, shipping, or installation. Asking the right questions before you buy prevents the most expensive mistakes. Use this checklist for fire doors, steel doors, garage doors, and shutter doors.
Eight questions to ask every supplier
- Is the certificate valid for this exact model? Confirm the certificate number, test report, rating, and expiration date.
- Is the complete assembly tested? Ask whether the leaf, frame, hinges, closers, seals, and glazing are covered together.
- Can you show production progress? Request factory photos or video during fabrication, finishing, and packing.
- Can I use third-party inspection? SGS or an independent inspector can verify quantity, dimensions, quality, and loading.
- What is the realistic lead time? Confirm production days, port loading, sea freight, and whether the schedule is written into the order.
- How is the product packaged? Check for steel crates, moisture barriers, corner protection, and clear shipping marks.
- What are the payment and delivery terms? Confirm the deposit, balance, FOB/CIF terms, and dispute process.
- What happens if parts arrive damaged? Ask about warranty, spare parts, and the claims procedure.
Documents to request with your quote
| Document | Why it matters |
|---|---|
| Test report | Proves the fire or performance rating |
| Certificate number | Lets your inspector verify the product |
| Factory registration | Confirms the legal manufacturer |
| Packing list | Controls quantity and carton/container details |
| Bill of lading | Shows ownership and shipment status |
Red flags
- A supplier cannot name the certificate number
- The test report does not match the model or rating
- The quote changes after the deposit
- No factory photos or inspection option
- The supplier promises unusually fast production without explaining how
FAQ
Should I order samples before a large commercial order?
For standard products, samples can confirm finish and hardware. For custom fire-rated doors, the certificate and test report matter more than the sample because the rating is based on the tested assembly.
Is third-party inspection required?
Not always, but it is low-cost insurance for large orders. Independent inspection before shipment reduces claims and makes the supplier accountable.
What is a reasonable deposit for factory direct doors?
Many factories ask for 30-50% before production and the balance before shipment or against the bill of lading. Confirm the exact milestone schedule in writing.
Check Yesoon Door’s certifications, review our certification guide, or send your checklist to our factory direct team. Yesoon Door
