Final answer:
To determine the number of floor joists required for a building, divide the width and length of the building by the spacing between the joists (converted to feet). Multiply the results to get the total number of floor joists required.
Step-by-step explanation:
To determine the number of floor joists required for a building, we need to calculate the number of spaces between the joists. The building is 28 feet wide, so we divide this by the spacing of 16 inches (converted to feet) plus 1 (to include the space at the edge). Similarly, the building is 32 feet long, so we divide this by the spacing of 16 inches (converted to feet) plus 1. Multiplying the results for the width and length will give us the total number of floor joists required.
Width: (28 ft)/(16/12 ft) + 1 = 29 spaces
Length: (32 ft)/(16/12 ft) + 1 = 33 spaces
Total: 29 spaces x 33 spaces = 957 floor joists
Learn more about Floor Joists