Published by VisFurn
VISFURN is the project-door brand of Tianjin Visfurn Furniture Co., Ltd. This guide supports buyers comparing door packages, specifications and quotation scope.

Steel Security Door for Compliance-Sensitive Projects
Double-skin cold-rolled steel with internal reinforcement ribs, mineral wool infill and multi-point locking, supplied as a complete steel door set for project-specific documentation and scope review.
Buyer answer: what to confirm before ordering
For a project quotation, send the door schedule and the approval requirement together. This lets the factory review the complete door set instead of pricing an unsuitable leaf-only configuration.
- Opening size, wall thickness, handing and frame installation condition.
- Required fire-resistance or security standard, destination market and approving authority.
- Lock, closer, hinge, finish and threshold requirements, plus the project quantity.
- Target delivery date, destination port and export packing requirements.
Armored steel entrance door set for controlled project specification.
This Visfurn steel security door is developed for apartment entry, stairwell, office and commercial openings where the door leaf, frame, lock, hinge and seal must be treated as one coordinated assembly. The powder-coated or transfer-printed steel surface gives a clean architectural appearance while final project requirements must be checked against the complete supplied assembly.
For compliance-sensitive projects, avoid selecting only by appearance or leaf thickness. The approving authority may require review of the full door set, including frame, hardware preparation and installation condition. Visfurn reviews the specification before quotation; certification, test reports and applicable scope must be verified for the selected configuration.

Technical Specifications
| Door Type | Steel security entrance door set for compliance-sensitive project review |
|---|---|
| Leaf Construction | Double-skin cold-rolled steel with internal reinforcement ribs |
| Core | Mineral wool infill, subject to project configuration and documentation review |
| Project documentation | Reviewed against the selected construction, required performance scope and destination-market requirements before quotation. |
| Locking System | Multi-point locking, anti-drill cylinder preparation and reinforced lock-side structure |
| Finish Options | Powder coating, solid colour and woodgrain transfer print, with matching steel frame |
Certification Guidance
Fire, smoke, acoustic and security criteria are not interchangeable. A document accepted in one market may not apply to another project authority. Share the destination country, building type and approval requirement before pricing; the final configuration and any supporting documentation must be verified before approval.
- United States projects may require listed assemblies accepted by the local authority having jurisdiction.
- European projects usually review EN 1634-1 / local classification documents by full assembly.
- Other markets may require national standards, project consultant approval or third-party inspection.
Applications
Suitable for apartment entry doors, protected commercial entries, stairwell doors, service rooms and other openings where a robust steel assembly and documented project review are required.

Packaging & Shipping
Door leaves are protected with film, corner guards and export packaging. Matching steel frames and hardware cartons can be packed with the same shipment for easier site matching and project handover.

Project quotation route: confirm the complete fire door set
Send the door schedule, wall thickness, handing, required approval or test scope, hardware templates, quantity and destination before quotation. Review the fire-rated steel supplier verification guide, then request the project quote and certificate review.
Frequently Asked Questions
Can project documentation be reviewed before quotation?
Yes. Share the destination market, approving authority, opening schedule, hardware and required documents. No rating or certification is claimed until the final assembly and applicable documentation are verified.
Are fire resistance and security rating the same thing?
No. Fire resistance and burglary resistance are separate test systems. They should be reviewed independently so the project team does not rely on the wrong document.
Why is the frame supplied with the door leaf?
Fire and security performance depends on the full assembly, not only the slab. The steel frame, seal, hinge, lock preparation and installation condition all affect approval and site performance.
Can finishes and dimensions be customized?
Custom size, colour, woodgrain transfer finish, frame depth and hardware preparation can be reviewed against the final project requirements and available verified documentation.
What information should buyers send first?
Send the door schedule, wall thickness, handing, lock and closer requirements, required standard or authority, quantity, destination and any consultant specification.
