Carpentry & Masonry Trade Knowledge — Practice
Carpentry: stairs: practice questions
Our Carpentry & Masonry bank has 8 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1 · Carpentry
What is the maximum riser height for residential stairs under the IRC?
- 7 inches
- 9 inches
- 7-3/4 inches
- 8-1/4 inches
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C. 7-3/4 inches — IRC R311.7.5.1.
Question 2 · Carpentry
What is the minimum stair headroom under the IRC?
- 6 feet 8 inches
- 6 feet 4 inches
- 7 feet 6 inches
- 8 feet
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A. 6 feet 8 inches — IRC R311.7.2.
Question 3 · Carpentry
What handrail height does the IRC require?
- 42 to 46 inches
- 30 to 34 inches above the stair treads, measured at the back
- Any comfortable height
- 34 to 38 inches above the nosings
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D. 34 to 38 inches above the nosings — IRC R311.7.8.1.
Question 4 · Carpentry
What is a stair stringer?
- The top step
- The sloped member that supports the treads and risers
- The vertical board between two treads that closes the stair
- The handrail post
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B. The sloped member that supports the treads and risers — Cut stringers are laid out with a framing square.
Question 5 · Carpentry
What is the minimum tread depth for residential stairs under the IRC?
- 9 inches
- 10 inches
- 11 inches
- 12 inches
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B. 10 inches — IRC R311.7.5.2.