Final answer:
The minimum net clear width of a means of egress in a one or two family dwelling is generally 32 inches, a common standard for allowing safe evacuation in emergencies, although building codes may vary by location.
Step-by-step explanation:
The minimum net clear width of a means of egress in a one or two family dwelling is typically 32 inches after the application of all finishes and door swings. This width is necessary to allow for the safe and efficient evacuation of occupants in the event of an emergency. Codes may vary depending on the jurisdiction, but this measurement is a common standard referenced in many building codes, including the International Residential Code (IRC) for dwellings.