A mounting bracket for an electrical box that includes: a base plate having substantially planar top and bottom surfaces, a first side, a second side, a first end, a second end, a plurality of mounting screw apertures and an opening for receiving an electrical box; a first flange and a second flange connected to the first and second sides, respectively, of the base plate by a first flange neck and a second flange neck, wherein each flange has a top and a bottom flange surface, wherein the flange necks extend from the top surface of the base plate; a wall connected to the first end having a substantially flat outer wall surface and a pair of opposing ends, wherein the wall extends from the bottom surface of the base plate; and a tab connected to each opposing end of the wall, wherein the tabs are substantially perpendicular to the outer surface of the wall.