Abstract: In combination an elevating unit for readily releasable attachment to a hand truck is disclosed. The elevating unit comprises, when in place on the hand truck, a main body portion having a front side and a back side. An extension leg has a foot portion and is disposed in sliding relation within the main body portion for selectively controlled movement between a first extended position whereat the foot portion is disposed below the lower end of the frame and a second retracted position whereat the foot portion is raised from being disposed below the lower end of the frame. An elongate threaded rod is operatively mounted on the main body portion for rotation in opposed first and second rotational directions by an electrically energizable reversible motor. A recirculating ball nut threadibly engages the elongate threaded rod for movement along the length thereof as the elongate threaded rod rotates. The extension leg is secured to the recirculating ball nut for movement therewith.