Collection: Louvred Fire Door

Louvred steel fire doors are available in several configurations depending on fire resistance period, ventilation requirements, and application. All fire-rated versions must be supplied as certified door sets tested to BS EN 1634-1 (and EN 16034 where externally installed).

By Fire Resistance Rating

FD30 Louvred Steel Fire Doors
Provide 30 minutes of fire resistance and are commonly specified in lower-risk commercial plant and service areas.

FD60 Louvred Steel Fire Doors
Offer 60 minutes of fire protection and are widely used in industrial buildings and higher-risk service spaces.

FD90 / FD120 Louvred Steel Fire Doors
Designed for environments requiring extended fire compartmentation, such as large plant rooms or critical infrastructure spaces.

Fire and Smoke Rated Louvred Doors (FD30S / FD60S)

These doors combine fire resistance with smoke control, incorporating certified smoke seals in addition to fire rated louvre systems.

High Free Area Ventilation Doors

Some louvred fire doors are designed to provide greater airflow capacity while maintaining certified fire performance. The free air area is determined by the tested louvre system.

Internal vs External

Louvred Steel Fire Doors

Internal doors – Tested to BS EN 1634-1 for compartmentation within buildings.External doors – Must also comply with EN 16034 and BS EN 14351-1, covering weather resistance, air permeability, and wind load.

Single and Double Leaf Configurations

Available as:

• Single leaf doors for standard service rooms
• Double leaf doors for larger plant areas or equipment access

Security Rated Louvred Steel Fire Doors

Where enhanced protection is required, security rated options (e.g. LPS 1175 or PAS24) may be available, provided the fire and ventilation certification remains valid.

Each type must be specified within the scope of its certified test evidence, ensuring both fire performance and ventilation requirements are achieved without compromising compliance.

Louvred steel fire doors can be configured to meet ventilation, fire resistance, and security requirements, provided all elements remain within the scope of the certified test evidence (typically BS EN 1634-1, and EN 16034 / BS EN 14351-1 where externally located).

Fire Resistance Rating

Available in certified ratings such as:

• FD30 (30 minutes)
• FD60 (60 minutes)
• FD90 / FD120 (where required)

Smoke control variants (FD30S / FD60S) can be specified where cold smoke restriction is required.

Louvre Configuration

The ventilation panel can be customised in terms of:

• Size and position within the door leaf (subject to certification limits)
• Free air area to suit airflow requirements
• Single or multiple louvre sections

The louvre system must be a certified fire-rated unit approved for use within the specific door set.

Insulation and Thermal Performance

For external doors, insulated cores can be specified to improve thermal efficiency and meet project U value targets.

Door Configuration

• Single leaf doors
• Double leaf doors for wider plant or equipment access
• Optional overpanels or side panels (where certified)

All doors are manufactured to measure.

Finish and Colour

Steel door leaves and frames can be powder coated in a wide range of colours to match the building exterior or internal design.

Hardware and Ironmongery

Customisable options include:

• Lever handles and locksets
• Panic bars or emergency exit devices
• Door closers
• Access control integration
• Electromagnetic hold-open devices
• Multi-point locking systems

All hardware must be fire rated and compatible with the certified configuration.

Security Enhancements

Security-rated options (e.g. LPS 1175 or PAS24) can be specified where additional forced-entry resistance is required, provided this does not compromise fire certification.

Accessibility Options

Customisation may include:

• Low thresholds
• Adjustable frames
• Automatic operators (where compatible with the fire strategy)

It is essential that any design modifications remain within the manufacturer’s tested scope to ensure continued compliance with fire performance, ventilation certification, and building regulations.

Louvred steel fire doors are specified where certified fire resistance and controlled ventilation are required within the same opening. They are commonly used in technical and service environments where equipment requires airflow but compartmentation must be maintained.

Plant Rooms

Installed in:

• Mechanical plant rooms
• HVAC rooms
• Generator rooms

They allow airflow for cooling equipment while maintaining the required fire resistance period.

Boiler Rooms

Boiler and heating plant areas often require permanent ventilation. Fire rated louvred doors provide airflow without compromising fire separation.

Electrical Intake and Switch Rooms

Used in:

• Electrical substations
• Switchgear rooms
• Transformer enclosures

Ventilation helps dissipate heat from electrical equipment while maintaining certified fire performance.

Industrial Facilities

Commonly fitted in:

• Production plants
• Service corridors
• Maintenance areas

Steel construction provides durability in demanding environments.

Commercial Buildings

Specified in:

• Service risers
• Back-of-house areas
• Building management rooms

They support compartmentation in accordance with the building’s fire strategy.

Healthcare and Public Buildings

Installed in technical and service areas where airflow is required but fire protection remains essential.

External Plant Enclosures

Externally located plant areas may require doors compliant with BS EN 16034 and BS EN 14351-1, providing both fire resistance and weather performance.

Louvred steel fire doors are selected where maintaining ventilation for equipment and services is critical, while still achieving certified fire compartmentation and regulatory compliance.

Louvred steel fire doors are designed to combine certified fire resistance with controlled airflow, making them suitable for plant and service environments where ventilation is essential.

Certified Fire Resistance

Tested to BS EN 1634-1 (and EN 16034 where externally located), louvred steel fire doors provide defined fire resistance periods such as FD30, FD60, FD90, or FD120, maintaining compartmentation in line with Building Regulations.

Integrated Fire Rated Ventilation

Incorporating certified fire rated louvre panels, these doors allow controlled airflow for:

• Cooling plant equipment
• Ventilating boiler rooms
• Managing heat in electrical rooms

Ventilation is achieved without compromising fire integrity.

Robust Steel Construction

Manufactured from heavy duty steel, these doors offer durability and impact resistance in high use or industrial environments.

Smoke Control Options

Available as FD30S or FD60S, incorporating smoke seals to restrict cold smoke movement where required by the fire strategy.

External Performance (Where Required)

Externally located versions can be fully compliant with EN 16034 and BS EN 14351-1, providing weather resistance, wind load performance, and air permeability ratings.

Security Enhancements

Steel construction provides strong resistance to forced entry. Security-rated upgrades (e.g. LPS 1175) may be available where additional protection is required.

Compatible with Access Control

Louvred fire doors can integrate with:

• Panic hardware
• Door closers
• Access control systems
• Electromagnetic hold-open devices

All hardware must remain within the certified configuration.

Long Service Life and Low Maintenance

Powder coated steel finishes and robust louvre systems are designed for durability, reducing ongoing maintenance requirements.

These features make louvred steel fire doors an effective solution for technical and service areas where airflow, durability, and certified fire protection must operate together.

Louvred steel fire doors are regulated fire safety products and must comply with fire resistance standards, product certification requirements, and Building Regulations. Because the louvre forms part of the fire barrier, it must be certified within the tested door configuration.

Fire Resistance – BS EN 1634-1

Internal louvred steel fire doors must be tested to BS EN 1634-1, confirming:

• Integrity (E) – Resistance to flame penetration
• Insulation (EI) – Heat transfer limitation (where specified)
• Declared fire resistance periods (e.g. 30, 60, 90, 120 minutes)

The louvre panel must be a fire-rated system included within the test evidence. Standard non-rated ventilation grilles cannot be retrofitted into fire doors.

Smoke Control (Where Required)

Where smoke restriction is required, doors must be specified as FD30S or FD60S and include certified smoke seals in addition to the fire-rated louvre system.

External Compliance – EN 16034 and BS EN 14351-1

If the louvred steel fire door is installed externally, it must also comply with:

• EN 16034 – Fire resisting and/or smoke control characteristics
• BS EN 14351-1 – External pedestrian doorsets
• The door must be CE and UKCA marked, with a Declaration of Performance confirming fire and external performance characteristics.

Building Regulations – Approved Document B

Louvred steel fire doors must align with the building’s fire strategy and comply with Approved Document B, including:

• Correct fire resistance period
• Installation within designated compartment walls
• Protection of escape routes and plant areas

Emergency Exit Hardware Standards (If Applicable)

Where forming part of a means of escape, hardware must comply with:

• BS EN 1125 – Panic exit devices (public buildings)
• BS EN 179 – Emergency exit devices (staff only areas)
• All ironmongery must be approved for use within the certified door set.

Installation to Certified Detail

Installation must follow the manufacturer’s tested detail, including:

• Approved fixing methods
• Correct gap tolerances
• Compatible seals and hardware
• Certified louvre positioning and size

Unauthorised alterations can invalidate fire certification.

Ongoing Inspection and Maintenance

Louvred steel fire doors must be included in routine fire door inspections to ensure:

• Self-closing and latching function
• Integrity of seals
• Secure and undamaged louvre panels
• Correct operation of hardware

When correctly specified, installed, and maintained in accordance with BS EN 1634-1 (and EN 16034 where external), louvred steel fire doors provide compliant fire compartmentation while allowing essential ventilation for plant and service environments.

Louvred steel fire doors must be installed and maintained strictly in accordance with their certified test evidence. Because the louvre panel forms part of the fire-resisting construction, installation quality is critical to maintaining compliance.

Installation Requirements

Install as a Complete Certified Doorset

Louvred steel fire doors must be supplied and installed as a fully certified door set, including:

• Steel door leaf
• Frame
• Certified fire-rated louvre panel
• Intumescent (and smoke) seals
• Approved hinges and hardware
• Door closer

All components must match the configuration tested to BS EN 1634-1 (and EN 16034 / BS EN 14351-1 if external).

Certified Louvre Integration

The louvre panel must:

• Be a tested fire rated unit
• Be positioned and sized in accordance with certification
• Be installed using approved glazing beads or fixing systems
• Standard ventilation grilles must never be retrofitted into a fire door.

Structural Fixing

The frame must be securely fixed into a suitable fire-rated wall construction (masonry, concrete, or steel stud) using the approved fixing method and spacing.

Gap Tolerances and Alignment

Correct gap tolerances between leaf and frame must be maintained. Excessive clearances can compromise fire and smoke performance. The door must operate smoothly and latch fully.

Self Closing Devices

Where required by the fire strategy, a compliant door closer must be installed and adjusted to ensure reliable self closing and latching.

Hardware and Alarm Integration

If fitted with panic hardware, access control, or hold open devices:

• All components must be fire-rated
• Installation must not compromise door integrity
• Hold open devices must release automatically upon fire alarm activation

Supply Only Considerations

Supply only louvred steel fire doors may be provided to competent contractors; however:

• Accurate measurements are essential
• Installation must follow certified instructions exactly
• Compliance responsibility rests with the installer and building operator
• Professional installation is strongly recommended in commercial and public buildings.

Maintenance Requirements

Routine Inspection

• Regular checks should confirm:
• Door self-closes and latches correctly
• Intumescent and smoke seals are intact
• Louvre panel is secure and undamaged
• Hinges and hardware are firmly fixed🌬 Louvre Condition

Inspect the louvre assembly for:

• Damage or distortion
• Loose fixings
• Obstruction from debris

Any repair must use approved components to maintain fire certification.

Periodic Servicing

In commercial environments, annual fire door inspections are recommended at minimum, with more frequent checks in high use plant areas.Maintenance may include:

• Closer adjustment
• Seal replacement
• Hardware tightening
• Latch engagement testing

Ongoing Compliance

Louvred steel fire doors must be included in the building’s fire risk assessment and ongoing safety management plan. Any modification outside the certified scope can invalidate fire performance.

When correctly installed and maintained, louvred steel fire doors provide compliant fire compartmentation while delivering essential ventilation in technical and service environments.

The cost of louvred steel fire doors depends on the fire resistance period, size of the door, louvre free air area, configuration (single or double leaf), hardware specification, and whether the door is internal or external. Because the louvre panel must be a certified fire-rated system, this adds to the base fire door cost.

FD30 Louvred Steel Fire Doors (30 Minute Rating)

Suitable for standard plant and service areas.

• Supply only: From £1,100 – £1,700
• Supplied and installed: From £1,800 – £2,800

FD60 Louvred Steel Fire Doors (60 Minute Rating)

Commonly specified for higher-risk commercial and industrial plant rooms.

• Supply only: From £1,400 – £2,100
• Supplied and installed: From £2,200 – £3,500

FD90 / FD120 Louvred Steel Fire Doors

Used in critical infrastructure and larger plant areas requiring extended fire resistance.

• Supply only: From £2,000 – £3,000
• Supplied and installed: From £3,200 – £5,000+

Louvre Size Impact

Smaller certified louvre panels are typically included within the base range.Larger ventilation areas or multiple louvre sections may add:

• £400 – £1,200+, depending on airflow requirements and certification limits.

Fire and Smoke Rated (FD30S / FD60S)

Where smoke seals are required, expect an additional:

• £150 – £400, depending on specification.

Security Rated Louvred Steel Fire Doors

Where combined fire and security certification (e.g. LPS 1175) is required:

From £3,500 – £6,500+ installed, depending on configuration and rating level.

External Compliance (EN 16034 / BS EN 14351-1)

Externally located louvred steel fire doors with full CE/UKCA marking may sit toward the higher end of the pricing range due to additional weather performance requirements.

What Affects the Final Cost

• Fire resistance period
• Louvre free air area
• Single or double leaf configuration
• Panic hardware or access control
• Powder-coated finish
• Installation complexity and structural preparation
• External performance compliance (where applicable)

Getting an Accurate Quote

Because louvred steel fire doors must be installed as certified door sets to maintain compliance with BS EN 1634-1 (and EN 16034 where external), a detailed site survey or accurate opening measurements are recommended. This ensures the correct fire rating, ventilation performance, and hardware specification for full regulatory compliance.