Abstract: A mechanic support device includes a rigid, parallel pair of base legs having horizontal lower portions and upwardly inclined upper portions, a pair of upper arms telescopically mounted in upper ends of the upper portions of the pair of base legs, a rigid step slidably mounted to, so as to extend between for substantially vertical or inclined sliding over the upper portions of the pair of base legs, and a rigid tray having a resilient pad mounted thereon, the tray slidably mounted on the pair of upper arms. The pair of upper arms includes lower sliding sections in telescopic mounting in the upper ends of the upper portions of the pair of base legs. The pair of upper arms also includes upper cantilevered sections extending cantilevered over, and substantially vertically aligned with, the lower portions of the pair of base legs.