Jobsite Fire Prevention VR Training: Extinguishers, Flammable Storage and Egress (OSHA 1926.150)
VR jobsite fire scenario on OSHA 1926.150 to 1926.152: extinguisher placement and travel distance, flammable liquid storage, temporary heaters and emergency egress.
QUICK ANSWER
OSHA 1926.150 requires a fire protection program, a 2A extinguisher for every 3,000 square feet with no more than 100 feet of travel, and a 10B extinguisher within 50 feet of more than 5 gallons of flammable liquids. A VR scenario sends workers through a building under construction to find what is missing, then has them fight a small fire or decide to leave.
What the Rule Requires
29 CFR 1926.150, Fire protection: the employer is responsible for a fire protection program throughout all phases of construction, access to firefighting equipment, extinguishers rated at least 2A for each 3,000 square feet with a travel distance of no more than 100 feet, and a 10B extinguisher within 50 feet where more than 5 gallons of flammable liquids are used. Section 1926.151 covers ignition sources and 1926.152 covers flammable liquid storage.
A wood-frame or mid-rise building burns faster during construction than after it, because sprinklers are not live, fire walls are open and combustible packaging is everywhere. The scenario uses a five-story wood-frame podium project in winter: propane heaters drying drywall, gas cans for the cut-off saws stored by a stairwell, and a second stair blocked with drywall carts.
Hazards in This Scenario
- Temporary heaters placed close to tarps, insulation and packaging
- Gasoline and solvents kept in non-approved containers or inside the building
- Only one usable stair because the other is blocked with material
- Extinguishers missing, discharged or more than 100 feet away
The Procedure the Scenario Rehearses
- Walk the floor and confirm each extinguisher location, gauge and tag
- Check that flammable liquids are in approved safety cans and stored away from exits
- Measure heater clearance to combustibles against the manufacturer label
- Confirm two clear exit routes and that standpipes are accessible
- Sound the alarm and decide whether a fire is small enough to fight
- Use the right extinguisher class with the PASS technique, or evacuate
Mistakes the Scenario Is Built to Catch
- Refueling a saw indoors next to a running heater
- Parking drywall carts in the only open stairwell
- Hanging a tarp over a heater to hold heat in a room
- Using a water extinguisher on a burning gasoline spill
Competence Assessment Matrix
| Decision point | What the assessor sees | Pass standard |
|---|---|---|
| Extinguisher check | How many missing or discharged units the learner finds | Every 2A gap and every missing 10B near fuel found |
| Flammable storage | Containers and locations judged by the learner | Non-approved cans and indoor storage flagged |
| Egress | Whether both stairs are checked as usable | Blocked stair reported and cleared |
| Fire response | Fight or leave decision and extinguisher choice | Correct class used, or evacuation when the fire is not small |
What VR Covers
- Fire growth shown at realistic speed in an unfinished building, with no live fire
- Extinguisher class selection with immediate feedback on the outcome
- Egress choices on a floor where one route is blocked
- A record of each hazard found or missed during the walk
What VR Does Not Replace
- Live-fire extinguisher practice with a trainer and a controlled burn
- Coordination with the local fire department and the site fire plan
- Daily housekeeping and hot work control by site supervision
Scope of a One-Scenario Pilot
A pilot builds this scenario as a single module, in Unity or Unreal Engine depending on the visual fidelity the task needs and the headsets on site. It runs on standalone headsets, logs every learner decision, and exports a per-person record for your training file. It is measured against your current method with a test cohort before anything is scaled.
Frequently Asked Questions
How many fire extinguishers does a construction site need?
At least one rated 2A for each 3,000 square feet of protected building area, with travel distance of no more than 100 feet, plus a 10B unit within 50 feet of more than 5 gallons of flammable liquids, under 1926.150.
Where can fuel be stored on a jobsite?
Flammable liquids go in approved containers, and storage inside buildings is limited and kept away from exits and stairways, under 1926.152.
Is VR useful for fire training?
It is useful for hazard spotting, extinguisher selection and the fight or leave decision. Hands-on discharge of a real extinguisher still needs live practice.
Want this scenario built around your site?
We review your current procedure and tell you which parts can be rehearsed in VR and which still need hands-on practice.
Scope One ScenarioFurther reading
- Fall Protection VR Training for Construction Crews (OSHA 1926 Subpart M)
- Scaffold Safety VR Training: Inspection, Access and Fall Protection
- Ladder Safety VR Training for Construction Sites (OSHA 1926.1053 and 1926.1060)
- Aerial Lift VR Training: Boom Lift Inspection, Tie-Off and Travel
- Fire extinguisher use: the PASS method
- All VR training scenarios: United States
- VR pilot readiness checklist
- How VR training programs are priced
VR scenario designs related to this topic
Proposed practice scenarios and checklist guides built around specific tasks. Each one lists what VR does not replace.
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