How much space is recommended for constructing a fire line for crew safety?

In wildland firefighting, a recommended space of 10 feet for constructing a fire line is based on safety protocols that consider the potential spread of fire, the type of fuels present, and the need for crew movement. This distance provides enough room for firefighters to work safely while creating a defensible line against the fire's advance. A line that is too narrow could expose firefighters to unnecessary risks, such as increased heat, smoke exposure, or even entrapment in case of wind shifts or flare-ups.

While distances greater than 10 feet may be advocated in some scenarios—especially in areas with heavy fuels or unpredictable fire behavior—the standard guideline helps ensure that crew members can operate effectively and maintain a buffer zone from the flames. This standard enhances both the effectiveness of the fire line and ensures the safety of the crew members during operations.