How many cubic feet per minute can panned joists accommodate for 10-inch joists that are 16 inches on center?

The ability of panned joists to accommodate air flow is determined by several factors, including the size of the joists and their spacing. In the case of 10-inch joists that are spaced 16 inches on center, the calculation for determining the airflow capacity can be derived from standard mechanical code tables or airflow guidelines.

For 10-inch joists, a common guideline indicates that they typically can handle approximately 525 cubic feet per minute (CFM) when appropriately configured as panned joists. This capacity accounts for the area created by the open space within the joists, which effectively functions to facilitate better airflow.

The dimensions and spacing work together to create a ventilation system that has a capacity suitable for typical residential heating and cooling requirements. Thus, knowing that 10-inch joists spaced 16 inches apart supports an airflow of approximately 525 CFM clarifies why this answer is the most accurate according to the mechanical guidelines.