A modular electrical receptacle box configured to allow outlets and switches to be easily installed using wire segments extending between terminals in the box bottom surface and the outlet and switch. The box has a housing having a first recess, at least one electrical outlet or switch secured to the housing and disposed in the first recess, a plurality of electrical terminals disposed in the bottom wall, a plurality of electrical conductor segments extending between the outlet or switch and the electrical terminals, and a first connector coupled to the electrical terminals via a plurality of electrical busses.