What is the minimum width of wall space that requires receptacle outlets to be installed?

The correct choice is based on the National Electrical Code (NEC) requirements regarding the installation of receptacle outlets in residential spaces. Specifically, the NEC mandates that receptacle outlets be installed in wall spaces that are a minimum of 24 inches wide.

This regulation is in place to ensure that there are adequate electrical outlets available for convenient access throughout a room, reducing the reliance on extension cords and increasing safety. Areas that are less than 24 inches in width do not typically qualify as usable wall space for the purpose of requiring receptacles because they are often too narrow to be practical for common household items or furniture placement.

In practice, this means that for any continuous wall length that is 24 inches or wider, at least one receptacle outlet must be provided. This standard helps ensure that homeowners have sufficient access to electrical power in their living spaces, promoting a safer and more functional home environment.