Octagonal Boxes are used in the installation of ceiling or wall lighting fixtures. Extension rings provide a means for adding additional cubic capacity or as an outlet box for surface conduit. Boxes may be used in the installation of lighting fixtures. Combination screw heads provide for faster installation.

Handy Boxes, also called utility boxes, are used for convenience outlets, switch boxes or small junction boxes. They are popular for surface-mounted wiring. Extension rings provide a means for adding additional cubic capacity or as an outlet box for surface conduit.