How Many Fire Wardens Does a Workplace Need?
By the DC Fire & Security engineering team — installing and maintaining fire and security systems since 2010. Updated June 2026.
Quick answer
There's no fixed statutory ratio — your fire risk assessment sets the number. The working convention: one fire warden per 50 people in low-risk premises, one per 20 in normal risk, one per 15 or fewer in high risk — multiplied to cover every floor, shift, and absence. A small office typically needs two trained wardens so one is always present.
The ratios in practice
Then apply the multipliers reality demands: at least one warden per floor or zone (sweep areas must be coverable in minutes), per shift including nights and weekends, and resilience for leave and sickness — which is why even a 15-person office trains two or three, not one. Public-facing premises count visitors, not just staff.
| Risk level | Typical premises | Wardens per occupants |
|---|---|---|
| Low | Small offices, low-occupancy units with simple escape | 1 per ~50 |
| Normal | Most offices, shops, light industrial | 1 per ~20 |
| High | Care settings, sleeping risk, complex/multi-floor, vulnerable occupants, hazardous processes | 1 per ~15 or fewer |
What fire wardens actually do
- On the alarm: sweep their zone (offices, toilets, meeting rooms), close doors, direct people out, assist anyone on a PEEP (personal emergency evacuation plan)
- Report their zone clear (or not) to the assembly point controller — the information the fire service wants on arrival
- Day to day: walkround checks — escape routes clear, fire doors unwedged, extinguishers in place, call points unobstructed
- Drills: lead and critique the practice evacuations (at least annually, more where turnover is high)
- First-response judgement: tackle only small, contained fires with a clear escape behind them — wardens are evacuators first, firefighters barely
Training and the paper trail
Half-day fire warden training (classroom or accredited online plus practical) covers fire behaviour, sweep technique, extinguisher familiarisation and the building's specific strategy; refresh every 2–3 years or when the building or role changes. The Fire Safety Order's requirement is for 'competent persons' to assist with preventive and protective measures and adequate training generally — your risk assessment, warden list, training certificates and drill records are the evidence inspectors ask for. Keep the warden list current on the fire action notices; a laminated name who left last year is its own finding.
Frequently Asked Questions
Is fire warden appointment legally required?
Can fire wardens be volunteers?
Do small offices with 5 staff need a warden?
What about buildings with multiple tenants?
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