Fire Extinguisher Location and Placement Requirements

Where you put a fire extinguisher matters as much as having one. NFPA 10 specifies exact requirements for extinguisher placement, spacing, and mounting height.

Travel Distance Requirements

The fundamental rule: no one should have to travel more than the maximum distance to reach an extinguisher. NFPA 10 Table 6.2.1.1 specifies:

• Class A (Light Hazard): 75 ft maximum travel distance
• Class A (Ordinary Hazard): 75 ft maximum travel distance
• Class A (Extra Hazard): 50 ft maximum travel distance
• Class B: 30-50 ft depending on hazard level and extinguisher size
• Class D: 75 ft maximum travel distance
• Class K: Maximum 30 ft travel distance from cooking equipment

Mounting Height Requirements

NFPA 10 §6.1.3.8 specifies:

• Extinguishers weighing 40 lbs or less: top of extinguisher no more than 5 ft above floor. Bottom at least 4 inches above floor.
• Extinguishers weighing more than 40 lbs: top of extinguisher no more than 3.5 ft above floor. Bottom at least 4 inches above floor.

Visibility and Access

• Extinguishers must be located along normal paths of travel
• Must be near room exits and stairwells
• Must not be obstructed by furniture, equipment, or storage
• In large rooms, additional extinguishers may be needed for coverage
• Cabinets must be marked with signage visible from a distance

Spacing Calculator

Our free NFPA 10 spacing calculator helps you determine how many extinguishers a room needs based on its dimensions and hazard classification. Try it on your phone during site surveys.