The information comes from: Shenghao Doors
Published on:2026-10-11
An OEM steel fire door supplier should be able to turn your drawings and product requirements into a clear manufacturing scope. Buyers seeking an OEM ODM fire door factory in China also need to understand which parts can be customised and which changes require additional performance review.
For distributors, contractors and brand owners, the best starting point is an agreed specification pack. Shenghao Doors welcomes project enquiries for custom steel fire doors, with configuration and documentation confirmed before production.
In an OEM enquiry, you normally provide the product design, dimensions and branding requirements for manufacture. An ODM enquiry generally asks the supplier to help develop a design or adapt an existing configuration. Describe the support you need rather than relying only on the acronym.
For fire-rated doors, design changes can affect the applicability of test evidence. Branding and finish changes should be distinguished from structural changes to leaves, frames, glazing or hardware.
| Document or decision | Purpose |
|---|---|
| Door schedule and drawings | Identify quantities, opening sizes, references and handing |
| Performance brief | State fire requirements and acceptable evidence |
| Hardware schedule | Confirm brands, models and assembly compatibility |
| Finish samples | Approve colours and surface appearance |
| Branding and packing instructions | Confirm labels, references and package contents |
Record whether measurements refer to the rough opening, finished opening or overall frame. Supply wall types and finished wall thicknesses. These distinctions prevent a factory drawing from being based on the wrong dimensions.
Ask an OEM fire rated door supplier to identify the documentation relevant to the proposed assembly. Check the model, dimensions, rating, leaf arrangement, vision panel and hardware scope. Do not accept a report simply because it mentions a similar steel door.
If the project requires local approval, agree who will review the documents and what further assessment is required. Avoid placing a production order before the necessary evidence and approval route are clear.
Use a sample or agreed reference to confirm appearance, operation and hardware details. Keep one approved drawing revision for production. Later changes to dimensions, lock preparation or glazing positions should be assessed and recorded before work continues.
For repeat orders, retain the approved configuration and sample. A familiar product name does not ensure that glass, locks or profile details remain identical.
Agree checks that correspond to the actual order: dimensions, frame and leaf references, finish, hardware preparation, accessory quantities and opening operation. Confirm what documentation will accompany the shipment and how door labels will be matched to the packing list.
A useful quotation states what is included: leaf, frame, glazing, hardware, packaging and delivery arrangements. Confirm sample cost, lead time, payment terms and any special branding or packing before placing the order. Compare suppliers against the same configuration.
Transport protection matters for assembled doors and separate frames alike. Provide the destination and handling arrangements so the packing proposal can be discussed alongside container loading or other shipment methods.
Include the branding requirements in your enquiry. Any mandatory product identification and evidence requirements must still be addressed.
Request the change on a drawing and review its effect on the proposed assembly and performance evidence before approval.
Compare the same dimensions, assembly, rating evidence, hardware, finish, packing and delivery scope.
Explore our product collection and contact Shenghao Doors with your dimensions, quantity, location and required configuration. Website: shenghaodoors.com. WhatsApp: +86 13924671020.
Custom steel fire doors — OEM project specification options. Review the product configuration and send your opening sizes, quantity and project requirements for a quotation.