Fire door regulations in the UK — what the law actually says

1. Regulatory Reform (Fire Safety) Order 2005

The core fire safety law for non-domestic premises and the common parts of residential blocks. It makes the "Responsible Person" (employer, occupier or building owner) legally accountable for ensuring fire doors are fit for purpose, maintained, and capable of holding back fire and smoke for their rated time.

2. Fire Safety (England) Regulations 2022 — Regulation 10

For residential buildings over 11m in height, the Responsible Person must carry out quarterly checks of communal fire doors and annual checks of flat entrance doors. Records must be kept and made available on request. This is the regulation that most landlords and managing agents now fall foul of.

3. Approved Document B

Sets the minimum fire door specification at the construction / refurbishment stage — which doors need to be FD30, FD60 or FD120, and where smoke seals are mandatory. ADB applies under Building Regulations, so it's the architect's and contractor's reference rather than the in-life maintenance standard.

4. BS 8214 — installation

The British Standard for installing timber fire doors. It specifies the maximum gaps (typically 3mm ± 1mm around the perimeter, 8mm at the bottom), the correct intumescent seal positioning, hinge requirements and frame fixing centres. A door that meets BS 8214 is far less likely to fail an inspection.

5. BS 476-22 and BS EN 1634-1 — testing

The two test standards a manufacturer's door set is certified against. When a fire door inspector talks about a door being "certified", they mean the door set has been tested to one of these standards and labelled with a unique reference traceable to a UKAS-accredited certification body.

Which regulation applies to me?

• HMO landlord: Fire Safety Order + Reg 10 if the building is over 11m + Housing Act LACORS guidance.
• Block managing agent: Fire Safety Order + Reg 10 (communal + flat entrance doors).
• Employer / commercial occupier: Fire Safety Order — risk-assessment driven, no fixed interval but typically annual inspections.
• Hotel / care home / school: Fire Safety Order — high-risk, six-monthly inspections recommended.

What enforcement looks like

Fire and Rescue Services can serve an Enforcement Notice or a Prohibition Notice if fire doors are non-compliant. Penalties for serious breaches are unlimited fines and, in the worst cases, custodial sentences. Insurers also routinely refuse claims when fire door records are absent.