A stair has total rise of 112 inches and 16 equal risers. What is each riser height?
Correct Answer
B) 7 inches.
One hundred twelve inches divided by 16 risers equals 7 inches per riser.
Why This Is the Correct Answer
One hundred twelve inches divided by 16 risers equals 7 inches per riser.
Why the Other Options Are Wrong
Option A: 6.5 inches.
6.5 inches. is below the supported result for stair riser calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 7.5 inches.
7.5 inches. is above the supported result for stair riser calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 8 inches.
8 inches. is above the supported result for stair riser calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Checking Framing takeoff: count the condition before counting the package.
Reference Hint
Study anchor (closed-book): memorize Stair riser calculation from California Residential Code, California Code of Regulations Title 24. / Title 24 California Residential Code stair geometry concepts; know the rule or calculation trigger without relying on exam-room lookup.
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