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Fire-Resistance Rating Calculator
Determine if your garage requires a fire-rated door based on common building code principles.
Understanding Fire-Rated Doors
If your garage is attached to your home, building codes require a fire-rated barrier between the two spaces to slow the spread of a fire. This nearly always includes a requirement for a fire-rated entry door connecting the garage to the living area. These doors are designed to withstand fire for a specific period (e.g., 20 minutes) and must have a mechanism to close automatically.