A fire door is a critical component of a building’s passive fire protection system. Properly specified, installed and maintained fire doors compartmentalise smoke and fire, protect property and buy time for occupants to escape. This article explores fire door safety from fire door types and fire-resistance ratings to common escape door standards and the legal responsibilities for owners and managers.

Certified fire doors are given a fire-resistance rating, which details the length of time the door and its components can withstand smoke and fire. For example, a fire door that provides 30 minutes of resistance will be rated FD30. The rating of the door should reflect the environment where it’s fitted and it’s critical that each, and every person involved in the process of specifying, installing, and maintaining fire doors understands the importance of fire doors so not to compromise fire safety.

 

What is a fire door and why does it matter?

A fire door is tested as part of a certified assembly to resist fire and smoke for a stated period (e.g., FD30 = 30 minutes). The correct door selection, correct installation and continued maintenance are all essential. A compromised fire door, such as a fire door with the wrong hardware, gaps, or non‑certified replacements, can seriously undermine a building’s fire safety strategy.

 

Types of fire doors

Fire Door (Keep Shut): self-closing doors used on routine circulation routes to maintain compartmentation.

Fire Door (Keep Locked): normally locked doors used for infrequent access, such as plant rooms and supply cupboards.

Automatic Fire Door (Keep Clear): doors held open for convenience but released to self-close on alarm or smoke detection.

 

Types of escape doors (exit doors)

Usually found on the perimeter of the building, exit or escape doors are the last doors you pass through on the escape route to a place of safety.

Panic exit doors (BS EN 1125): found in public buildings with 60+ users (without prior knowledge of operation), operated by a panic device that covers 60% of the width of the door.

Emergency escape doors (BS EN 179): found in non-public buildings with less than 60 users (trained and familiar with the escape drill), operated by push pad or lever handle.

 

Fire-resistance ratings (quick reference)

FD30 — 30 minutes’ integrity and insulation.

FD60 — 60 minutes’ integrity and insulation.

It’s important to choose the rating to match the area’s fire risk, escape routes and regulatory requirements.

 

Who is responsible for fire door safety?

Under The Regulatory Reform (Fire Safety) Order 2005, a Responsible Person (RP) must be elected to deal with a building’s fire safety, which includes undertaking regular risk assessments. In England and Wales, the Responsible Person must have a robust knowledge of fire safety and be familiar with The Fire Safety Act 2021.

Fire is unpredictable and, in most cases, preventable. Good management of fire safety is essential to ensure that fires are unlikely to occur and if they do, necessary measures are in place to control and contain the fire quickly and effectively to allow everyone to escape safely.

 

Practical maintenance and inspection tips

• Inspect doors regularly: check closers, intumescent seals, vision panels, gaps and correct hardware.
• Keep records of checks, repairs and risk assessments.
• Only use certified door components and follow the door manufacturer’s installation instructions.
• Never prop open fire doors unless using approved automatic hold-open devices linked to alarms.

 

Helpful checklist

Are fire doors the correct rating for their location?

Are self-closing devices and seals intact and functioning?

Is there a current fire risk assessment and action plan?

Are staff trained on escape routes and door operation?

Are records of inspections, maintenance and repairs logged and retained?

 

Fire door safety requires correct selection, competent installation and ongoing maintenance. Clear responsibilities and up-to-date risk assessments (aligned with the Fire Safety Act 2021 and Building Safety Act 2022 where applicable) are essential to keep occupants safe and comply with the law.

From fire door closers and hold open devices to hinges and exit devices, your fire door hardware should be tested and certified. Still in doubt, or in need of replacement hardware? Call us today on 0330 8080 617.

If you’re a specifier, installer or are responsible for maintaining a fire door, it’s also important that you can select and fit the correct fire door hardware with the necessary level of competence. Our state-of-the-art fire door training centre offers the accredited training courses and regulated qualifications you and your team need to feel confident and remain compliant. Contact fdm.info@allegion.com and upskill your workforce today.

Don’t miss #FireDoorSafetyWeek  21–25 September 2026.

 

Frequently Asked Questions

What is a fire door?

A fire door is a certified door and frame assembly designed to resist fire and smoke for a specified period, protecting escape routes and occupants.

What does FD30 mean?

FD30 indicates a fire door gives 30 minutes’ resistance to fire and smoke for integrity and insulation.

How do I know who is responsible for fire doors?

The Responsible Person under the Regulatory Reform (Fire Safety) Order 2005 is accountable for fire safety, including fire doors. In larger sites duties may be delegated to facilities/estates teams.

How often should fire doors be inspected?

Industry guidance recommends regular inspections. Typically, routine checks are monthly with a full recorded inspection at least once a year, and after any alteration or fire event. (Follow local regulations and organisational policy.)

Can I prop open a fire door?

No, don’t prop open fire doors unless a compliant automatic hold-open device linked to the fire alarm is installed.