Which formula is used to establish the required fire flow for extinguishment?

The formula that determines the required fire flow for extinguishment is based on the area of the building involved in the fire. The correct approach calculates the area by multiplying the length and width, which gives us the total square footage of the space that needs to be addressed. Dividing that area by 3 provides a guideline for the gallons per minute (GPM) that would be necessary to effectively extinguish a fire in that space. This standard is often used to ensure that sufficient water is available to combat the fire efficiently and effectively.

By utilizing this method, fire departments can assess the potential fire flow needs for various building sizes, ensuring a structured response that matches the requirements for extinguishment. This formula accounts for both the vertical and horizontal dimensions of a structure, allowing for a comprehensive understanding of the fire load and necessary resources for suppression.