Abstract: A support apparatus provides a vertical strut having a threaded portion at a lower end and a strut cap positioned on an upper end. A beam support yolk engages a structural beam and the support yolk rotationally engages the strut cap. A strut base provides a threaded receiver and a cavity, the cavity positioned below the threaded receiver. The threaded portion of the strut engages the threaded receiver. The strut further provides a device for rotational advantage for rotating the strut and the strut cap for adjustment in vertical position of the support yolk relative to a support surface under the strut base.