Finish TradesQuestion 413 of 700
For an emergency escape and rescue window in a basement sleeping room, what is the MINIMUM net clear opening area generally required (for openings above grade)?
a.3.3 square feet
b.4.0 square feet
c.5.0 square feet
d.5.7 square feet
Explanation
Emergency escape and rescue openings generally require a minimum net clear opening of 5.7 square feet (with a reduced 5.0 square feet allowed for grade-floor openings). 3.3 and 4.0 square feet are too small; 5.0 is the grade-floor exception, not the general above-grade requirement of 5.7.
Law Reference: 2025 CA Residential Code §R310.2.1Practice all 700 questions free — no signup required.
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