A cantilevered pipe support for mounting on a vertical support member to support a horizontal pipe run. An elongated strut having a stamped indentation well within the perimeter of said strut provides bending rigidity. The strut is mounted on edge (vertically) in its width dimension and is elongated horizontally to a cantilevered end opposite the end thereof supported on the vertical support member. A "nose" at the upper, outer strut extremity supports a right angle bracket through a notch in the vertical leg of the bracket and a "chin" projection extends from the lower outer strut extremity, the nose having an inward notch into which the first bracket leg locks at the top of the first notch. An upward projection at the outer extremity of the "chin" projection extends through a second slot in the second bracket leg, forming a second notch into which the second leg of the bracket rests. The second leg includes means for anchoring a horizontal pipe run generally perpendicular to the strut.