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2015-2018 IBC Frontage Calculator

Instructions:
  1. For each segment of exterior wall, enter in the length of the segment and the width of open space in front of that section.
  2. Only wall segments with open space of 20 feet or greater count towards the frontage increase.
  3. The sum of the segment lengths (P), should equal the total building perimeter.
  4. The frontage increase factor, If, is the value you plug in to the allowable area equations.​

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The views, opinions, and information found on this site represent solely the author and do not represent the opinions of any other party, including the author's employer and the International Code Council, nor does the presented material assume responsibility for its use.  Local codes and amendments may vary from the code requirements described herein. Fire protection and life safety systems constitute a critical component of public health, safety and welfare and you should consult with a licensed professional for proper design and code compliance.
  • Home
  • Blog
  • About
  • PE Roadmap
  • Tools
    • Allowable Height & Area Calculator - Separated Mixed Occupancy
    • Allowable Height & Area Calculator - Non-Separated Mixed Occupancy
    • Average Grade Plane Calaculator
    • Calculated Fire Resistance for Wood Walls
    • Fire and Smoke Damper Tool
    • Fire Wall/Exterior Wall Intersection Tool
    • Frontage Calculator
    • IBC Occupant Load Calculator
    • Plumbing Fixture Calculator
    • Stair Pressurization Estimator
  • Startup