Under South Carolina building codes, what is the minimum required width for emergency egress windows in basement bedrooms?
Correct Answer
C) 20 inches
South Carolina building codes require emergency egress windows to have a minimum clear width of 20 inches for basement bedrooms.
Why This Is the Correct Answer
South Carolina adopts the IRC, which sets the minimum clear opening width for emergency escape and rescue openings at 20 inches. This is the code-specified floor — no dimension smaller than 20 inches satisfies the egress requirement.
Why the Other Options Are Wrong
Option A: 26 inches
26 inches exceeds the code minimum and is not a specified standard threshold; choosing this suggests confusion between width and height requirements or a misremembered figure.
Option B: 24 inches
24 inches is also above the 20-inch minimum but is not the correct code value; it may be confused with other dimensional requirements such as clear height on some fixtures.
Option D: 22 inches
22 inches is between the correct 20-inch minimum and other distractors; it has no basis in the IRC or South Carolina code and is a plausible-sounding wrong answer.
Memory Technique
Think '20 for the way out' — the narrowest a person can squeeze through in an emergency is 20 inches wide. Height is 24, area is 5.7 — width is the smallest number of the three.
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