Fire load, or more accurately fire load density is the starting point for estimating the potential size and severity of a fire. Fire Load Calculation (usually estimated based on NFPA 557 or local factory rules) is an important factor in establishing the basis for the assessment of the fire risk pertaining to any area. It indicates the quantity of heat liberated per unit area when an area and its contents are completely burnt.

The calculation of the fire load is the basis for determining the classification of the occupancies for the fire grading of buildings as well as determining the required resources for firefighting. Accurate estimation of fire load density will help you to manage better design factors and response measures.

Basic inputs required for Fire Load Calculation include:

• Facility layout plan
• Typical inventory of materials held in different areas of the facility to calculate the Fire load
• Situational impact on the inventory

Based on fire load calculation, the next step is to conduct the Fire Safety Audit/ Assessment which is an organized and methodical approach to detect, prevent and mitigate any hazard or condition that will lead to fire at factory, building, warehouse, facility, due to the activities carried out on the premises or by some external influences.