A commercial building is being constructed with a floor framing system. The floor joists are spaced at 16 inches on center. Which of the following is the minimum required span for the floor joists according to the 2021 International Building Code?
- A12 feet
- B14 feet
- 16 feet
- D18 feet
Exam tip
Always refer to the specific spacing requirement when determining the minimum span for joists.
Why C is correct
According to Section 1807.3 of the 2021 IBC, the minimum span for floor joists with a spacing of 16 inches on center is 16 feet. Options A, B, and D are incorrect as they exceed the minimum span requirement.