Fire Exit Audit.
Calculate occupant load, travel distance, and required exit widths (staircases and doors) for buildings according to NBC 2016 Part 4 Life Safety requirements.
Building Specs
Audit Health
PASSED
NBC 2016 Part 4
Minimum Exit Width: 1000mm • Doors must open outwards • Sprinklers increase travel limit by 50%
Egress Hub
What is Fire Exit & Life Safety Calculator (NBC 2016)?
Understanding NBC 2016 Fire Safety Standards
The National Building Code (NBC) 2016 Part 4 defines 'Life Safety' as the primary goal of building design. This includes providing an adequate number of exits, limiting travel distance, and ensuring that exit paths are protected from fire and smoke.
A 'Fire Exit' is not just a door; it's a Continuous Path of Travel from any point in the building to a place of safety (usually the street). This path consists of the exit access, the exit itself (like a fire-rated staircase), and the exit discharge.
Critical Life Safety Metrics
Occupant Load
Total number of persons allowed in a space at any one time. Calculated by Floor Area ÷ Occupant Density Factor.
Travel Distance
The distance a person must walk to reach the nearest exit. Usually 22.5m to 45m depending on the building type and sprinkler status.
Exit Width
Calculated based on 'Capacity per Unit Width'. For stairs, it's typically 10mm per person for residential buildings.
The 'Two-Exit' Rule
As per NBC 2016, most buildings (except small residential or certain exceptions) must have at least two independent exits. These exits should be placed as far apart as possible (usually 1/2 or 1/3 the diagonal of the building) to prevent both being blocked by a single fire.
Did You Know?
Dead-end corridors (where there is only one way to escape) are strictly limited to 6 meters in institutional buildings and 15 meters in others.
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How to Calculate Fire Exit Requirements
Verify that your floor plan provides enough exit capacity and safe travel distances.
Categorize Plot Occupancy
Input Floor Area
Verify Staircase Width
Check Max Travel Distance
Technical FAQ & Regulatory Compliance
1What is the minimum width of an exit staircase?
2How does the 'Travel Distance' change with sprinklers?
3Do fire exits have to lead directly to the outside?
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