Fire Door Signage Requirements: Which Signs Go Where in the UK

Do fire doors legally need signs?

Yes — in most buildings other than private dwellings, fire doors should be marked with mandatory signs, and the requirement comes from three overlapping sources. First, for new building work in England, Approved Document B (the statutory guidance to the Building Regulations) states in Appendix C, paragraph C11 that, with limited exceptions, *"all fire doorsets should be marked with one of the following fire safety signs, complying with BS 5499-5"*. Second, in existing workplaces the Health and Safety (Safety Signs and Signals) Regulations 1996 require employers to provide safety signs where a risk assessment shows they are needed, and to provide and maintain any fire safety sign required by other legislation. Third, the Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to keep fire precautions — including signage — maintained *"in an efficient state, in efficient working order and in good repair"* (article 17).

In practice, this means the fire risk assessment for any non-domestic premises — offices, shops, schools, hotels, care settings — and for the common parts of blocks of flats should confirm that every fire door carries the correct sign. A missing or wrong sign is one of the most common findings in a professional fire door inspection, and it is one of the cheapest defects to put right.

What fire door signs does BS 5499 specify?

BS 5499-5 (*Safety signs, including fire safety signs — signs with specific safety meanings*) is the standard Approved Document B points to for fire door marking. Fire door signs are mandatory signs: a blue circle with white text or pictogram, the format used for instructions that must be obeyed. Approved Document B paragraph C11 lists three wordings and matches each to how the door is managed.

'Fire door keep shut'

For fire doors that are *"to be kept closed when not in use"* — the classic self-closing door on a corridor, stairway or circulation route. The sign reminds users never to wedge the door open, because an open fire door cannot hold back fire or smoke. These doors rely on a working self-closing device as well as the sign.

'Fire door keep locked shut'

For fire doors that are *"to be kept locked when not in use"* — typically cupboards, service risers, electrical intake rooms and plant rooms that are not part of an escape route. These doors usually have no self-closer; security and compartmentation are maintained by keeping them locked, so the sign goes on the outside face only.

'Automatic fire door keep clear'

For fire doors *"held open by an automatic release mechanism or free swing device"* — for example doors on electromagnetic hold-open devices (BS EN 1155) that release when the fire alarm operates. Here the instruction is different: the door may legitimately stand open, but the swing path must be kept clear of furniture, trolleys and stock so the door can close fully on alarm.

Which sign goes on which door?

The exemptions in the last three rows come from Approved Document B Appendix C, paragraph C12. Note that an exemption from *signage* is never an exemption from the door's fire performance: an unmarked flat entrance door must still self-close and resist fire, and it is still subject to regulation 10 checks in buildings over 11 m.

Where and how high should fire door signs be fitted?

Approved Document B sets the both-faces convention: *"all fire doorsets should be marked on both sides, except fire doorsets to cupboards and service ducts, which should be marked on the outside."* The logic is simple — a corridor door is approached from both directions, so the instruction must be readable from both, whereas nobody needs an instruction on the inside of a locked cupboard.

For height, government technical guidance for fire doors on its own estate states that signs *"should be positioned at a height of approximately 1.5 m from finished floor level on both sides of the door"* — in other words, at eye level for most adults. Beyond that, apply common-sense visibility rules:

• Fix the sign to the door leaf itself, not the adjacent wall, so the instruction stays with the door.
• Keep signs clear of vision panels, ironmongery and push plates so they remain legible.
• Do not let notices, posters or decoration cover or crowd the sign.
• Replace faded, painted-over or peeling signs — an illegible sign fails the article 17 maintenance duty.
• Use one consistent sign style across the building to avoid mixed formats confusing users.

Signs are available as self-adhesive vinyl, rigid plastic and metal discs; any of these is acceptable provided the sign is durable, securely fixed and conforms to the mandatory blue-and-white format. Symbol-only, text-only and combined symbol-and-text versions all exist — combined signs are the safest choice because they are understood without training.

Do flat entrance doors need 'keep shut' signs?

Generally no — and this surprises many landlords. Approved Document B paragraph C12 exempts *"doors to and within flats and dwellinghouses"* from the signage recommendation, so a flat entrance door does not need a 'Fire door keep shut' sign on either face, and doors inside a private dwelling never need signs. Signage is aimed at buildings where the population changes and cannot be relied on to know the fire strategy; inside someone's home, a permanent disc on every door is neither practical nor required.

Instead, the law manages flat entrance doors through information. In England, regulation 10 of the Fire Safety (England) Regulations 2022 requires responsible persons in any building with two or more sets of domestic premises and common parts to tell residents that fire doors should be kept shut when not in use, that residents and their guests must not tamper with self-closing devices, and that faults or damage should be reported immediately. This information must be given to new residents and repeated to all residents at least every 12 months. In buildings over 11 m, the same regulation adds quarterly checks of communal fire doors and annual best-endeavours checks of flat entrance doors — covered in detail in our regulation 10 guide.

The communal doors in the same block — stairway doors, corridor cross-doors, doors to bin stores, risers and plant rooms — are not exempt and should carry the appropriate BS 5499-5 sign. A fire risk assessor may also recommend signage on the communal face of flat entrance doors in specific cases (for example where wedging is a known problem); that is a risk-assessment judgement rather than a blanket legal requirement.

Are photoluminescent fire door signs required?

Photoluminescent signs absorb energy from ambient lighting and glow in darkness, so the instruction remains visible if normal lighting fails. They are not a blanket legal requirement for fire door signs: the legal test is that safety signs must be provided where the risk assessment requires them and must remain visible and effective. Fire and rescue guidance on escape signage accepts luminous signs that need no external power as one way of achieving visibility, alongside externally and internally illuminated signs.

A sensible approach: in premises that operate in darkness or have areas without emergency escape lighting — plant areas, storage basements, late-night venues — specify photoluminescent fire door signs; elsewhere, standard rigid or self-adhesive signs are acceptable. Whatever the material, the sign must keep the mandatory blue-and-white format, and photoluminescent versions should be positioned where they receive enough ambient light to charge.

How does signage fit into your wider fire door duties?

Signage is management hardware, not decoration. Under the Fire Safety Order the responsible person must maintain fire precautions, and enforcing authorities treat missing or contradicted signage as evidence of poor management — the classic example being a wedged-open door directly beneath its own 'Fire door keep shut' sign. During routine checks, verify signs at the same time as gaps, seals and closers; our free fire door inspection checklist includes a signage line, and the fire door compliance checker will tell you which duties apply to your building.

1. Walk the building and list every fire door, using the fire risk assessment or door schedule as the starting point.
2. Check each door has the correct BS 5499-5 sign for how it is managed — kept shut, kept locked, or held open on an automatic release.
3. Confirm signs are on both faces (outside only for cupboards and service ducts), at about 1.5 m, and legible.
4. Remove wedges and correct any door whose real-world use contradicts its sign.
5. Record defects and fixes in your fire safety records, alongside your regulation 10 or maintenance check results.