Abstract: A duct molding for cables is provided for securely and efficiently mounting cables on the outside portion of a wall and/or ceiling. The subject duct molding includes an elongated tubular duct molding portion having a base and cover which can be at least partially disassociated from one another to provide access to the cables. Cables retaining clips are mounted on the base on the inside portion of the tubular duct molding. Each cable retaining clip includes a plurality of recesses formed by spring fingers which can removably retain individual cables. Expansion modules can be mounted in recesses of the cable retaining clip to expand the cable retaining capacity of the subject duct molding. Duct molding corner members are provided to enable mounting of the subject duct molding against sections of wall or ceiling that are angularly related to one another.