How far from the finished floor must a receptacle outlet be installed?

The requirement for the installation height of receptacle outlets is specified in the National Electrical Code (NEC). According to the NEC, receptacle outlets installed in dwelling units must be a minimum of 12 inches above the finished floor. This height helps ensure that the outlets are accessible while also minimizing the risk of damage from water or other contaminants that may be present on the floor. Locating outlets at this height caters to both practical use and safety concerns.

Choosing a height lower than 12 inches might present hazards and limit accessibility, making 12 inches the most appropriate and code-compliant choice for receptacle outlets in residential settings.