Abstract: The present invention is directed to a support for positioning a door frame adjacent a masonry wall which is under construction. The support includes two substantially horizontal members which are mounted on wheels so as to be readily moved about a construction site. Further, the support includes two substantially vertical upright members which are connected at approximately the midpoint of the horizontal members and to which a door frame is releasably attached. The support of the present invention ensures the accurate positioning of a door frame as a masonry wall is constructed and the door frame attached thereto.