According to the Florida Building Code, what is the maximum height for a single step (riser) in a stairway?
Correct Answer
B) 7.75 inches
The Florida Building Code limits stair risers to a maximum height of 7.75 inches to ensure safe and comfortable stair usage. This is consistent with IBC requirements.
Why This Is the Correct Answer
The Florida Building Code establishes a maximum riser height of 7.75 inches for stairways to ensure safe navigation and prevent tripping hazards. This measurement is based on ergonomic studies that determine the optimal step height for the average person's stride. The 7.75-inch limit balances safety with practical construction requirements. This standard is consistent with the International Building Code (IBC) which Florida has adopted with modifications.
Why the Other Options Are Wrong
Option A: 7 inches
7 inches is below the maximum allowed height, so while it would be acceptable, it's not the maximum limit specified in the code.
Option C: 8 inches
8 inches exceeds the Florida Building Code maximum of 7.75 inches and would create a code violation that could result in unsafe stair conditions.
Option D: 8.25 inches
8.25 inches significantly exceeds the maximum allowed riser height and would create dangerous stepping conditions that violate building safety standards.
Memory Technique
Think '7 and 3/4 inches max' - visualize a standard 8-inch board with 1/4 inch trimmed off the top for safety.
Reference Hint
Florida Building Code, Chapter 10 - Means of Egress, Section 1011 - Stairways, or IBC Section 1011.5.2
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