Why use the Thermally Fire Rated Steel Doors?

Thermally Rated Steel Doors combine the essential benefits of fire resistance and thermal insulation into a single, high-performance doorset. Ideal for energy-conscious buildings that require robust passive fire protection, these doors help maintain internal climate control while protecting escape routes and compartmented areas from fire spread.

Designed for utility spaces, plant rooms, data centres, commercial buildings, and energy-efficient developments, these doors deliver long-term security, regulatory compliance, and cost-saving insulation in one engineered solution.

Benefits

Dual Protection: Up to 4 hours fire integrity (E240) combined with U-values as low as 1.6 W/m²K — ensuring both fire containment and energy performance.
Energy Efficient: Insulated cores and thermal breaks reduce energy usage, keeping heating and cooling bills in check.
Fire Safety Compliance: Certified to BS EN 1634-1 for fire resistance; suitable for compartmentation and protected escape routes.
Robust Steel Security: Made from reinforced galvanised steel, these doors offer long-lasting protection against intrusion and external wear.
Weather & Draught Sealing: All models include brush or EPDM seals to prevent air leakage, water ingress, and temperature loss.

Operation

Manual Operation: Ideal for plant rooms, escape routes, or infrequent access areas.
Door Closers: Fire-rated overhead closers fitted as standard to ensure automatic closure in the event of a fire.
Locking Options:
- Sashlocks and multi-point locking systems for general access
- Panic exit hardware for emergency escape
Drop Seals: Automatically engage when closed to enhance thermal and acoustic seal.

Applications

Boiler and Plant Rooms
Energy Centres and Utility Buildings
Commercial and Public Sector Buildings
Data Centres and Communication Hubs
Schools, Hospitals, and Local Authority Sites
Fire Escape Doors for Thermal Zones

Certifications

BS EN 1634-1: Fire resistance testing (up to 240 minutes)
BS EN 14351-1: Weather resistance and thermal insulation
CE and UKCA Marked: Hardware and doorsets
Optional PAS 24 security rating on selected models

Fire testing is conducted with full hardware installed to ensure certified performance under real-world conditions.

Thermal and Fire Rated Steel Doors Single

Thermal and Fire Rated Steel Doors Double

Information

Security Features

Manufactured using high-strength galvanised steel, enhancing resistance to forced entry.
Reinforced steel door leaf construction, often 44mm or 54mm thick, with internal reinforcements to deter tampering and impact attacks.
Multi-point locking systems available, including 3-point and 5-point locking as standard or upgrade.
Optional high-security locking hardware including:
- Sashlocks and deadlocks (CE-rated)
- Panic exit bars for emergency egress
Certified to PAS 24 or EN 1627 security standards where required (project-dependent).
Optional security accessories like anti-jemmy astragals, dog bolts, and security capping.

Safety Features

Fire-rated up to E160, EI30, EI60, or EI120, depending on configuration.
Independently tested and certified to EN 1634-1 for fire resistance.
CE marked for compliance with European safety legislation.
Optional vision panels with fire-rated glass (integrity and insulation rated).
Emergency override and panic exit ironmongery options available for escape routes.
Can be integrated with smoke seals and intumescent strips to contain fire and smoke spread.

Insulation & Energy Efficiency

U-values as low as 1.4 W/m²K thanks to insulated cores and thermal break frames.
Doors include mineral wool or insulated composite cores for superior thermal and acoustic performance.
Double and triple sealing systems (rubber and brush seals) reduce heat loss and air infiltration.
Ideal for use in temperature-controlled environments like plant rooms or corridors between cold and warm zones.

Design & Customisation

Supplied with powder-coated finish in standard RAL colours, typically RAL 9005 (black), RAL 7016 (anthracite), and RAL 9016 (white).
Available in bespoke colours from the full RAL or BS colour range upon request.
Optional stainless steel or PVC laminate finishes for hygiene or architectural environments.
Can include louvres, vision panels, and external trims.
Frame profiles and thresholds can be customised for different floor levels or types.

Operation & Controls

Primarily manually operated but can integrate with access control systems:
- Keypads
- Magnetic locks
- Proximity readers
Closers and door selectors for double doors can be added.
Electromagnetic hold-open devices available for fire doors where automated closure is required on alarm trigger.
Fire alarm interfacing options are supported for automatic door release.

Installation & Warranty

Made-to-measure manufacturing ensures a perfect fit for both new builds and retrofits.
Flexible installation options:
- Reveal fix
- Face fix with architraves
- Corner or angle frames
Supplied with pre-fitted hardware for easier installation.
Standard manufacturer’s warranty ranges from 12 to 24 months, depending on specification.
Documentation and certificates provided for compliance (e.g., fire rating, CE declaration).

Lead Time & Common Applications

Standard lead time: 3 to 4 weeks, expedited service available for urgent jobs.
Ideal for:
- Plant rooms and boiler rooms
- Corridor fire doors in commercial premises
- Warehouse fire exits and insulated access points
- Schools, hospitals, and retail units
Suitable for internal and external use with durable finishes and weather-resistant seals.

Security Doors

Thermal and Fire Rated Steel Doors

From only £1,715.00 Ex VAT (£2,058.00 inc VAT)
(Based on 1000mm x 2100mm)

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