The occupant load of a space is determined using the 2021 International Building Code (IBC), Table 1004.5 – Maximum Floor Area Per Occupant.
IBC Table 1004.5 – Occupant Load Factor for Exercise Rooms:
The occupant load factor for an exercise room is 1 person per 20 square feet.
Given that the exercise room is 1,000 sq. ft.:
1,000 sq. ft. ÷ 20 sq. ft. per person = 50 occupants
Why Other Options Are Incorrect?
A. 10 – Would require a 100 sq. ft. per person load factor, which is not applicable for exercise rooms.
B. 20 – Incorrect calculation; using the correct load factor, the actual number is 50.
C. 30 – Also incorrect based on the proper load factor.
✅ Correct Answer: D. 50
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