Apparatus and systems for holding and locating one or more wires within a structure are disclosed. A wire support in accordance with the present invention may include a foldable or bendable body including one or more apertures configured to receive an elongated member therethrough. The wire support may include mounting tabs for attaching the wire support to a structural member such as a wall stud or ceiling joist. The mounting tabs may comprise several arcuate-shaped flaps adapted to bend or flex about the ends of the body. In use, the wire support can be configured to attach to a structure in a generally flat configuration, or may be folded or bent to a desired shape such as a polyhedron or an L.