Exterior Fire Door Factory Direct
Weather-resistant exterior fire doors — perimeter-sealed, fire-rated, and built for building entrance and exit routes. FD30 to FD120 ratings. NFPA 80 and CE certified. Factory-direct supply from Luoyang, China — 450,000-unit annual capacity, 25–35 day lead time on standard orders.
What Makes an Exterior Fire Door Different from an Interior Configuration
An exterior fire door carries two simultaneous requirements that interior fire doors don't: it has to hold a fire resistance rating, and it has to perform as a weatherproof building envelope component. Those two demands pull in different directions at the manufacturing level, and most of the specification decisions on an exterior fire door come down to managing that tension.
Fire Resistance Rating
The fire rating side is straightforward — the door needs to maintain integrity for 30, 60, 90, or 120 minutes depending on the building code requirement. This is the baseline that both interior and exterior configurations share.
Combined Intumescent + Compression Weatherseal
An interior fire door can use a standard intumescent-only perimeter seal. An exterior fire door needs a combined intumescent and compression weatherseal — the intumescent component activates under heat to seal against fire and smoke, while the compression gasket handles water and air infiltration under normal conditions.
Heavier Coating for Weather Durability
We run our exterior fire door line with a 1.2mm SPCC body as standard — the same gauge we use on our commercial interior line — but with a heavier zinc phosphate pre-treatment and a 70–80μm powder coat rather than the 60–70μm we apply to interior product. The extra coating thickness is the margin that gets you through a 500-hour salt spray test with zero delamination, which is the threshold most North American and European buyers need for exterior-rated installations.
We learned the hard way that 60μm is fine for interior corridors but starts showing edge creep on exterior-facing panels within 18 months in humid climates — the extra 10μm costs almost nothing at our production volume and eliminates that warranty exposure entirely.
Drop-Seal Threshold — The Detail Inspectors Check First
Exterior fire doors need a raised or drop-seal threshold that closes the gap between door bottom and floor when the door is shut — both for weather exclusion and to maintain smoke integrity. We fit a drop-seal threshold as standard on exterior configurations; it retracts when the door opens and drops automatically on closing. This is a detail that gets missed when buyers spec an interior fire door for an exterior opening, and it's one of the first things a building inspector checks.
Interior vs. Exterior Fire Door — Key Differences
Technical Specifications
Standard parameters for our exterior fire door line. Contact us for exact data sheets on specific configurations.
Exterior Fire Door — Standard Parameters
| Parameter | Standard Value / Range |
|---|---|
| Fire Resistance Rating |
FD30 FD60 FD90 FD120
|
| Door Leaf Thickness | 44mm (FD30/FD60) · 54mm (FD90) · 64mm (FD120) |
| Steel Body Gauge | 1.2mm SPCC cold-rolled steel (standard) · 1.5mm available |
| Core Material | Mineral wool board (FD30/FD60) · Perlite composite (FD90/FD120) |
| Door Width | 700–1200mm single leaf · up to 2400mm double leaf |
| Door Height | 2000–2400mm standard · custom heights available |
| Frame Type | Welded steel frame · knock-down frame available |
| Perimeter Seal | Combined intumescent + compression weatherseal |
| Threshold | Drop-seal threshold (standard on exterior config) |
| Surface Finish | Powder coat 70–80μm · 60+ RAL colors · primer-only available |
| Hardware | Stainless or zinc-alloy hinges · mortise lock · overhead closer |
| Glazing | No vision panel (standard) · fire-rated glass panel (optional) |
| Certifications |
NFPA 80 CE ISO 9001:2015 SGS
|
| Weather Rating | Passes 500-hour salt spray test (ASTM B117) |
Specifications shown are standard values for this product configuration. Actual specifications may vary by order. Contact us for detailed product data sheets and project-specific confirmation.
Rating Quick Reference
Where Exterior Fire Doors Move — Market Segments Worth Building Into Your Catalog
Exterior fire doors sit at the intersection of fire safety compliance and building envelope performance. That dual requirement narrows the supplier field and keeps margins firmer than standard interior fire doors — buyers who need a certified exterior fire door can't substitute a cheaper interior product.
Commercial Construction
Every commercial building with a fire-rated perimeter wall needs fire-rated doors at the penetrations: main entrances, emergency exits, loading dock access points, and stairwell discharge doors to the exterior. A mid-size office or hotel project typically specifies 8–20 exterior fire door sets.
Contractors sourcing direct from a manufacturer rather than through a local distributor protect 15–20% margin on that volume, and the compliance documentation comes pre-packaged with the product.
Logistics and Industrial Facilities
Warehouses and manufacturing plants have exterior fire doors at every fire compartment boundary that opens to the outside — loading dock doors, emergency egress from production areas, and access doors between fire-separated zones. These buyers specify FD60 or FD90 ratings and often want 1.5mm gauge for abuse resistance.
A large logistics facility can require 30–80 exterior fire door sets, and facilities management contracts generate repeat orders as doors are replaced on a maintenance cycle.
Industrial construction in Southeast Asia and the Gulf is running at pace, and fire code enforcement is real — this segment has grown steadily over the past three years.
Property Developers — Multi-Building Residential and Mixed-Use
Large-scale residential developments in the Middle East, Southeast Asia, and Africa are required to meet fire door specifications at building entrances and stairwell discharge points. A developer building 10 residential towers needs consistent product across all buildings and a single compliance documentation package.
Factory-direct sourcing from one supplier delivers both — one QC standard, one set of test certificates, one point of contact for any post-delivery questions.
Building Materials Distributors
Exterior fire doors are a lower-volume but higher-margin SKU compared to interior FD60 steel fire doors. The combined weather and fire performance requirement means less price competition from non-specialist suppliers, and buyers are less likely to shop purely on unit price.
Stocking exterior fire door variants alongside interior configurations lets you serve the full project spec from one supplier — contractors don't have to split their fire door order between two sources.
Retrofit and Fire Safety Upgrades
Existing buildings undergoing fire safety compliance upgrades — particularly older commercial buildings in markets with tightening enforcement — need exterior fire door replacement at building entrances and exit routes. This segment values fast lead times and the ability to match existing opening dimensions.
Our 25–35 day lead time on standard catalog orders and custom sizing capability serve retrofit buyers well.
Find the Right SKU Mix for Your Market
Tell us your target market and volume — we'll suggest the right product configuration and compliance documentation package for your project or distribution catalog.
Exterior Fire Door Manufacturing: Where the Process Differs from Interior Production
The exterior fire door line runs the same CNC forming, robotic welding, zinc phosphate pre-treatment, and powder coating process as our standard fire door production — with three specific differences that matter for product performance in exterior conditions.
Heavier Pre-Treatment and Coating Spec
Interior fire doors go through our standard zinc phosphate bath and receive 60–70μm powder coat. Exterior doors get an extended zinc phosphate dwell time and a 70–80μm coat.
The extended dwell time increases the phosphate crystal density on the steel surface, which is what drives the improvement in coating adhesion under thermal cycling.
Why it matters: When a door faces direct sun in a Gulf climate, the surface temperature can swing 40–50°C between night and midday — that thermal cycling is what causes coating delamination on under-treated panels. The heavier spec eliminates that failure mode.
Combined Perimeter Seal Installation
On interior fire doors, a single intumescent strip is recessed into a machined channel in the door edge. On exterior doors, a two-component seal is fitted: the intumescent strip in the machined channel, plus a compression EPDM weatherseal on the frame rebate.
Component 1
Intumescent strip in machined channel — checked for full perimeter continuity
Component 2
Compression EPDM weatherseal on frame rebate — checked for consistent contact pressure around full frame
The two components are installed and tested separately. A gap in either component is a rejection at final inspection.
Drop-Seal Threshold Fitting and Adjustment
The drop-seal threshold mechanism is fitted and adjusted at the factory before shipment. The drop height is set to achieve a 2–3mm compression on the threshold seal when the door is fully closed — enough to exclude water and air without creating excessive resistance on the door swing.
The adjustment is locked before packing.
Installation note: Site conditions sometimes require re-setting after installation. The adjustment specification is included in the installation documentation — it's a 10-minute adjustment with a hex key. Buyers whose installers don't know it exists end up with doors that either leak or drag.
Interior vs. Exterior: Key Process Differences
Interior: Standard zinc phosphate + 60–70μm coat
Suitable for controlled indoor environments
Exterior: Extended dwell time + 70–80μm coat
Handles 40–50°C thermal cycling in Gulf climates
Interior: Single intumescent strip
Fire seal only
Exterior: Intumescent strip + EPDM weatherseal
Fire seal and weather exclusion — both tested at final inspection
Exterior only: Drop-seal threshold
Factory-set to 2–3mm compression; adjustment spec included in documentation
Factory and Quality Control
Learn more about our production process and inspection standards
Certifications and Compliance for Exterior Fire Door Sourcing
Our exterior fire door line is covered under the same certification portfolio as our full fire door range: NFPA 80, CE (tested to EN 1634-1), ISO 9001:2015, and SGS third-party audit. Below is the practical compliance picture by market.
North America — NFPA 80
NFPA 80 governs fire door installation, labeling, and inspection in the US and Canada. Exterior fire doors must carry a label from a listed certification body. Our NFPA 80 certification covers this requirement.
For buyers importing into the US, the certification documentation is included in the standard shipment package — no additional testing required at the port of entry.
Europe & EU-Aligned Markets — CE / EN 1634-1
CE marking is required for fire-rated products sold in the EU and in Gulf markets that have adopted EU-aligned building codes (UAE, Saudi Arabia, Qatar). Our CE certification covers structural and fire-rated products tested to EN 1634-1.
SGS audit reports are available on request for buyers who need third-party documentation for their own import compliance files.
Southeast Asia & Australia
Standards vary by jurisdiction. Our CE and SGS documentation is accepted as equivalent in most Southeast Asian markets. Australian buyers should confirm with their local authority having jurisdiction (AHJ) before specifying.
We can provide additional test documentation on request for markets with specific local requirements.
Panic Hardware Compliance — A Critical Exterior-Specific Point
In many jurisdictions, exterior fire doors on exit routes must also comply with panic hardware requirements: EN 1125 in Europe, UL-listed hardware for NFPA 80 markets. If your project spec includes panic exit devices on exterior fire doors, confirm that the hardware is rated and listed to the same standard as the door assembly.
A non-rated push bar on a fire door voids the door's certification. We supply fire-rated push bar hardware as part of the door package on request.
Customization Options for Exterior Fire Doors
Standard catalog exterior fire doors cover most distribution and project requirements. When your spec goes outside the standard range, our 15-engineer R&D team handles the development in-house — no third-party design subcontracting, no communication lag between your spec and the production floor.
In-House R&D — No Subcontracting
Every custom spec is handled by our own engineering team. That means faster turnaround on design reviews, direct communication between your requirements and the production floor, and no markup from third-party design firms.
- Free design consultation — send your spec or reference product
- 3D rendering and detailed quote included
- 15–20 working days from spec submission to first sample
- Dedicated production scheduling for orders above 500 units
Standard
Custom Config
Available
| Customization Dimension | Options / Range | MOQ Impact |
|---|---|---|
| Fire Rating |
FD30 FD60 FD90 FD120
|
No MOQ change |
| Door Dimensions | Width 700–1200mm, height 2000–2400mm standard; custom sizes available | Custom dims: 100 units |
| Steel Gauge | 1.2mm standard · 1.5mm heavy-duty | No MOQ change |
| Surface Finish | 60+ RAL colors · primer-only · stainless steel cladding (select models) | Custom color: 100 units |
| Vision Panel | No panel (standard) · fire-rated glass panel in custom sizes/positions | Custom glazing: 100 units |
| Hardware Package | Mortise lock · push bar (panic exit) · electromagnetic hold-open · access control prep | No MOQ change on standard hardware |
| Threshold Type | Drop-seal (standard) · raised threshold · custom threshold height | Custom threshold: 100 units |
| OEM / Private Label | Custom branding, labeling, packaging | 100 units |
| Frame Configuration | Welded frame · knock-down frame · custom frame profile | KD frame: no MOQ change |
Standard Catalog Orders
Covers standard dimensions, standard steel gauge, standard hardware packages, and catalog finishes. No design consultation required — order from spec sheet.
Custom Configuration Orders
Applies to non-standard dimensions, special finishes, custom glazing, OEM branding, and custom threshold heights. Free design consultation included.
For project orders above 500 units, dedicated production scheduling is available to protect your delivery timeline.
Free Design Consultation
Send us your target spec or a reference product. Our engineers will review it for manufacturability and come back with a 3D rendering and detailed quote. Lead time from spec submission to first sample is typically 15–20 working days depending on complexity.
Container Loading and Export Logistics
The numbers your freight team needs for landed cost calculations.
KD (Knock-Down) Exterior Fire Doors
Standard single leaf — recommended export format
CBM per set
0.20–0.25 m³ (size-dependent; exterior config runs slightly larger than interior due to threshold hardware)
40HQ Loading
Approximately 140–180 KD exterior fire door sets per container
Packaging
Reinforced carton, foam corner protection, threshold mechanism packed separately and labeled for on-site fitting
Why KD is standard: Maximizes container utilization and eliminates alignment risk in transit.
Pre-Hung Exterior Fire Door Assemblies
For buyers requiring ready-to-install product
CBM per set
0.38–0.48 m³ per assembly
40HQ Loading
Approximately 75–95 pre-hung sets per container
Packaging
Foam-lined wooden crate, cross-braced frame, corner guards, threshold pre-fitted and protected
When to specify: End customers requiring ready-to-install product with no on-site frame assembly.
Batch Traceability
Every carton carries a barcode linked to our production batch record for full traceability.
Lead Time
25–35 days for standard catalog exterior fire doors from deposit confirmation. Custom configurations quoted individually.
Active Markets
Los Angeles, Houston, Dubai, Singapore, Lagos, and Sydney — with established customs clearance documentation.
Documentation Package
Commercial invoice, packing list, bill of lading, CO, NFPA 80 / CE test certificates — complete for all active markets.
Container Utilization Comparison
KD format is the standard for most export orders. The CBM difference between KD and pre-hung directly affects your landed cost per unit — factor this into your pricing model before specifying format.
Frequently Asked Questions
Technical and sourcing questions from distributors, contractors, and project buyers — answered with the specifics your team needs.
What is the difference between an exterior fire door and an interior fire door?
The fire resistance rating works the same way — FD30, FD60, FD90, FD120 — but an exterior fire door adds weather performance requirements that interior doors don't carry. Key differences in our exterior configuration: a combined intumescent + compression weatherseal (interior doors use intumescent only), a heavier powder coat spec (70–80μm vs. 60–70μm for interior), an extended zinc phosphate pre-treatment for corrosion resistance, and a drop-seal threshold for water and air exclusion.
Specifying an interior fire door for an exterior opening is a common mistake — the door will hold its fire rating but will fail on weather performance and may not pass building inspection.
What fire rating do I need for an exterior fire door on a building exit route?
It depends on the building type and the wall's fire resistance rating. In most commercial buildings, exit doors in fire-rated perimeter walls are specified at FD60. High-rise buildings and buildings with high occupancy loads often require FD90 at stairwell discharge doors. FD30 is typically the minimum for low-rise commercial and residential-scale projects.
FD30
Low-rise commercial / residential
FD60
Most commercial exit doors
FD90
High-rise / high occupancy
Governing standards: NFPA 80 (North America), EN 1634-1 (Europe and Gulf). Send us your project spec and we'll advise on the appropriate rating.
Can exterior fire doors be fitted with panic exit hardware and still maintain their fire rating?
Yes, but the panic hardware must be fire-rated and listed to the same standard as the door assembly. A non-rated push bar on a fire door voids the door's certification.
Available fire-rated push bar hardware:
Specify panic hardware when you send your inquiry — it affects the hardware package and the certification documentation included with the shipment.
What steel gauge should I specify for exterior fire doors in high-abuse environments?
1.2mm SPCC is the standard for most commercial exterior applications — office buildings, hotels, mixed-use developments. For high-abuse environments (schools, hospitals, industrial facilities, public housing), specify 1.5mm gauge with reinforced hinge pockets.
Coastal markets: The gauge choice matters less than the coating spec. 1.2mm with proper pre-treatment and 70–80μm powder coat outperforms 1.5mm with inadequate surface treatment in corrosion resistance. Don't over-specify gauge for low-abuse applications — the weight difference adds to freight cost.
What is your MOQ for exterior fire doors, and can I mix ratings in one order?
50
Units — Standard catalog MOQ
100
Units — Custom configuration MOQ
You can mix fire ratings (FD30, FD60, FD90) and configurations (single leaf, double leaf, with or without vision panel) within a single order as long as each line item meets the individual MOQ. For mixed orders below the per-SKU MOQ, contact us — we can often accommodate smaller quantities on existing production runs.
How do exterior fire doors perform in coastal and high-humidity markets?
Our exterior fire door line passes a 500-hour salt spray test (ASTM B117) — the threshold most North American and European buyers require for coastal installations. The performance comes from the combination of zinc phosphate pre-treatment and 70–80μm powder coat, not from the steel gauge alone.
Shipped to coastal markets without finish-related warranty claims:
If your market has specific corrosion resistance requirements beyond 500-hour salt spray, contact us — we can discuss additional coating options.
Have a question not covered here?
Send us your project spec, target market, or sourcing requirement. Our technical team responds with specific answers — not generic brochure copy.
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Start Your Exterior Fire Door Sourcing
If you're building a distribution catalog or sourcing for a specific project, the fastest path is to send us your target spec: fire rating, door dimensions, hardware requirements, and destination market. Our engineering team will review it and come back with a detailed quote and, for custom configurations, a 3D rendering and the relevant certification documentation for your market.
Not Sure Which Configuration Fits?
Tell us the application — building type, opening location, local code requirement — and we'll spec the right product. We see enough order patterns across our active markets to give you a useful read on what works.
What to Include in Your Spec Request
- Fire rating required (FD30, FD60, FD90, FD120)
- Door dimensions (width × height, single or double leaf)
- Hardware requirements (panic bar, closer, vision panel)
- Destination market and applicable certification standard
- Order volume — catalog build or single-project sourcing
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