Fire Door Rating Calculator
Required fire rating from wall construction and occupancy.
Inputs
Results
Required door rating (minutes)
90
Required door rating (hours)1.5
Wall rating (hours)2
Max glazing area (sq in)100
Panic hardware requiredYes
Self-closing requiredYes
Positive latching requiredYes
Temperature rise limit requiredYes
Leaf area (sq ft)21
Exceeds max leaf sizeNo
How to Use This Calculator
- Enter Wall fire rating (hours), Wall type, and Occupant load served.
- Set Door style, Door width (inches), and Door height (inches).
- Review the Required door rating (minutes) result.
- Use Required door rating (hours) and Wall rating (hours) to inform your decision.
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