Finish TradesQuestion 254 of 700

A below-grade bedroom uses a window well to meet emergency escape requirements. The window well must generally provide a minimum horizontal area of at least ____, with a minimum projection and width of 36 inches.

a.3 square feet
b.9 square feet
c.20 square feet
d.1 square foot

Explanation

Window wells for emergency escape openings generally must be at least 9 square feet with a minimum horizontal projection and width of 36 inches so an occupant can climb out. Three square feet and one square foot are far too small, and 20 square feet exceeds the required minimum.

Law Reference: 2025 CA Residential Code §R310

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