ICC B1 question of the day · 13 November 2026

Today's ICC B1 practice question

Building Planning

Plans for a small house show a first-floor home office that the plans examiner thinks may be too narrow and too small to count as a habitable room. Where in the 2024 IRC would you check the floor area and width a habitable room must have?

2024 IRC R316, Habitable Attics2024 IRC R325, Light, Ventilation and Heating2024 IRC R312, Minimum Room Areas2024 IRC R314, Mezzanines

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Today's ICC B1 practice question

Plans for a small house show a first-floor home office that the plans examiner thinks may be too narrow and too small to count as a habitable room. Where in the 2024 IRC would you check the floor area and width a habitable room must have?

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