Abstract: An elevator fixture includes a base plate module with opposed bent ends for mounting on a wall surface, and a housing open at the rear side to receive the base plate module and detachably couple the housing to the base plate module. The housing is formed from a face plate module and a frame module. The face plate module has one or more apertures through which call buttons or other indicating devices extend. The frame module is formed from a plurality of frame portions which are cut to length from an extrusion to match the dimensions of the face plate module. The frame portions are releasably coupled together by tabs and setscrews to releasably retain the face plate. Thus, the fixture can be assembled by selecting from among a plurality of different base plate, face plate and frame modules. The base plate module can include a positioning indicator and a positioning aperture for locating the fixture relative to an existing wall recess and/or in accordance with regulations.