Orbit Industries Box and conduit hanger support features steel construction and pre-galvanized finish for longer endurance. It supports vertical/horizontal mounting. Hanger support has pin holes and slots that allow for use with conduit straps. It measures 10.75-Inch x 10.75-Inch. Hanger support fits up to 6-Inch x 6-Inch box for horizontal mounting. Box and conduit hanger support is UL listed, RoHS compliant and ETL rated.