In which type of space would occupant load be calculated using net square footage?

Per IBC Section 1004.1.2, occupant load is calculated using net square footage (usable floor area, excluding walls, fixtures) for spaces where furniture or equipment defines capacity, like an exercise room (Assembly A-3). Gross square footage (total area including walls) applies to open areas like airport terminals (B) or museum exhibits (C), both Assembly A-3 but with less fixed layout. Exercise rooms require net calculation due to equipment-specific occupancy, making A correct.

Verified Answer from Official Source:A - exercise room

"Net square footage is used to calculate occupant load in spaces like exercise rooms where fixed equipment defines usable area." (NCIDQ IDPX Study Guide, Section 1: Codes and Standards)

Explanation from Official Source:The NCIDQ specifies net area for spaces with defined layouts, ensuring accurate capacity based on functional space, per IBC standards.

Objectives:

Calculate occupant loads accurately (IDPX Objective 1.2).