Originally Posted by
guitarchitect
Can anyone elucidate the differences of GFA vs GCA? I used to know it like the back of my hand, but it has been a while. I believe the way I used to calculate GCA was to take the entire perimeter of the building and subtract shafts and floor openings. GFA (for residential buildings) would further subtract any non-residential program space like electrical closets or mechanical rooms. I know there is a BOMA standard but unfortunately I don't have access to their resources. If anyone has a web resource that points to it I would love to see it, I had a really difficult time sourcing anything.
Thanks!