US Patent 8933331 Reversible electrical box assembly with extensions to match various reveals

A reversible electrical box for securing electrical fixtures or devices on the exterior wall of a building. The electrical box has an interchangeable rear element and an extension spacer which allow the achievement of a desired reveal depending on the wall finish thickness. It can be installed on unfinished walls upon which a finishing, such as stucco, is then applied or it can be installed as a retrofit on an existing finished wall. Two principal embodiments are shown with the first embodiment serving to attach electrical devices and the second embodiment serving to attach electrical fixtures.