According to SC building codes, what is the minimum width required for emergency egress windows in basement bedrooms?
Correct Answer
A) 20 inches
South Carolina building codes require emergency egress windows to have a minimum width of 20 inches for basement bedrooms.
Why This Is the Correct Answer
SC building codes (aligned with the International Residential Code) require emergency egress windows to have a minimum clear opening width of 20 inches. This ensures a person can escape through the window in an emergency from a basement bedroom.
Why the Other Options Are Wrong
Option B: 24 inches
24 inches is a commonly assumed width and is required for some door and hallway clearances, but it exceeds the minimum egress window width requirement of 20 inches.
Option C: 30 inches
30 inches is too wide to be the minimum egress window width. Larger openings are allowed but not required as the minimum.
Option D: 22 inches
22 inches is between the correct answer and other distractors and has no basis in the IRC or SC building code as a minimum egress window width.
Memory Technique
Egress window minimums: Width = 20 inches, Height = 24 inches, Area = 5.7 sq ft, Sill height ≤ 44 inches from floor. '20 wide, 24 tall' — width is always the smaller of the two dimensions.
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