To determine the number of floor joists needed in a floor frame, divide the length of the building by the ____ and add one.
A) width
B) height
C) volume
D) spacing

Question

Quizplus · Accepted Answer

The number of floor joists needed in a floor frame is determined by dividing the length of the building by the spacing of the joists and adding one. This formula ensures that there is a final joist at the end of each row, providing maximum support for the flooring above. Therefore, the correct choice is D) spacing.

To Determine the Number of Floor Joists Needed in a Floor