Question

which component is not included in computing gross floor area (gfa) under nbcp?
parking areas and vertical penetrations like elevator shafts.
enclosed stairways with direct floor access.
interior corridors and mechanical rooms.
habitable rooms and enclosed balconies.

Explanation:

Gross Floor Area (GFA) generally includes enclosed usable spaces. Parking areas and vertical penetrations such as elevator shafts are typically excluded as they are not considered part of the main habitable or functional floor - space for the purposes of GFA calculation under NBCP.

Answer:

A. Parking areas and vertical penetrations like elevator shafts.