Framing & StructuralCâu 392 / 700
What is the MINIMUM clear width required above the handrail for an interior residential stairway?
a.30 inches
b.32 inches
c.36 inches
d.44 inches
Giải thích
Residential stairs must provide a minimum clear width of 36 inches above the permitted handrail height. 30 and 32 inches are narrower than allowed; 44 inches is a common commercial minimum and exceeds the residential requirement.
Trích dẫn luật: 2025 CA Residential Code §R311.7.1Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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