One of the criteria for inclusions is an area greater than 450 square feet. You can look at it in a slippy map: https://gis-fema.hub.arcgis.com/pages/usa-struc

One of the criteria for inclusions is an area greater than 450 square feet. You can look at it in a slippy map: https://gis-fema.hub.arcgis.com/pages/usa-structures 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.