| 1 | Fire-resistance classification | Under GB 12955-2008, common Chinese classifications include A, B, and C fire doors. Typical rated fire-resistance periods include 0.50, 0.75, 1.00, 1.50, 2.00, and 3.00 hours, depending on the tested door assembly. | Required rating, test direction, door size, and whether the rating applies to the complete door set. | Request a complete test report showing the tested construction, dimensions, hardware, and achieved fire-resistance period. |
| 2 | Applicable test standard | Relevant standards may include GB 12955, EN 1634-1, UL 10C, or NFPA 252, depending on the destination market and project specification. | Destination country, project code, required test standard, and authority having jurisdiction. | Confirm that the report is issued for the exact product type and is acceptable to the project consultant or local authority. |
| 3 | Door construction | Common products include steel fire doors, timber fire doors, glazed fire doors, and insulated double doors. Performance depends on the complete tested assembly rather than the leaf alone. | Material, single or double leaf, glazed or solid panel, frame profile, and required finish. | Compare the quotation with approved drawings and confirm the core, frame, seals, hinges, locks, closer, and glazing system. |
| 4 | Fire-rated hardware | Hardware such as hinges, locks, panic devices, door closers, coordinators, and electromagnetic holders must be compatible with the tested door assembly. | Hardware schedule, quantity per opening, access-control requirements, stainless-steel grade, and finish. | Request hardware certificates or test evidence and check whether each item is included in the tested configuration. |
| 5 | Smoke-control features | Intumescent and smoke-control seals are commonly used to limit fire and smoke spread. Seal type and location must match the tested design. | Smoke-seal requirement, seal color, threshold detail, drop seal requirement, and environmental conditions. | Review sectional drawings and confirm the seal material, installation position, replacement method, and test evidence. |
| 6 | Dimensional capability | Custom dimensions are possible, but the allowable size range must remain within the limits covered by the supplier’s test evidence and production process. | Opening width and height, wall thickness, finished floor level, handing, frame depth, and tolerance requirements. | Ask for approved shop drawings, maximum tested dimensions, and a site measurement or opening schedule. |
| 7 | Quality-management evidence | A qualified supplier should be able to provide traceable production records, incoming-material controls, inspection procedures, and documented final checks. | Inspection level, sampling plan, third-party inspection, factory acceptance test, and documentation requirements. | Request a quality manual extract, inspection checklist, sample inspection report, and corrective-action records where appropriate. |
| 8 | Quotation completeness | A comparable quotation should identify product specification, quantity, unit price, tooling or sample charges, packing, delivery terms, taxes, and exclusions. | Incoterm such as EXW, FOB, or CIF; destination port; currency; tax status; packaging; and validity period. | Use a standardized request-for-quotation sheet and reject offers containing vague descriptions such as “fireproof door” without a rating. |
| 9 | Production and delivery planning | Lead time varies according to door quantity, custom sizes, glazing, hardware, testing, coating, and export documentation. Samples are normally completed before mass production. | Sample quantity, approval deadline, production quantity, required delivery date, shipment method, and split-delivery requirements. | Request a production schedule with milestones for drawing approval, sample approval, manufacturing, inspection, packing, and shipment. |
| 10 | After-sales and installation support | Fire door performance can be affected by incorrect installation, damaged seals, unsuitable hardware, or unauthorized site modifications. | Installation manual, training, supervision, spare parts, warranty period, replacement policy, and technical support response time. | Review installation instructions, warranty terms, spare-parts list, reference projects, and the supplier’s procedure for handling defects. |