Anyone know if this is commercial buildings only or does it include residential too?
replies(1):
You can look at it in a slippy map: https://gis-fema.hub.arcgis.com/pages/usa-structures (a couple clicks required from there).
In my area it doesn't particularly identify garages well, so you probably can't spend that much time on bike sheds.
Some may need an assist: https://en.wiktionary.org/wiki/bikeshedding