A hand truck assembly includes a frame including an upper portion and a lower portion. The assembly further includes a handle attached to the upper portion of the frame. The assembly also includes a pair of wheels attached to the lower portion of the frame. In addition, the assembly includes a fixed work support member attached in fixed relation to the lower portion of the frame. The assembly further includes a movable work support member attached to the lower portion of the frame, the movable work support member being moveable between (i) a first position in which a free end portion of the movable work support member rests on the fixed work support member, and (ii) a second position in which the free end portion of the movable work support member is spaced apart from the fixed work support member. The assembly also includes a post attached in fixed relation to the free end portion of the movable work support member. The assembly additionally includes a power tool such as a hammer jack that defines a cavity. When the movable work support member is positioned in the first position, (i) the post is located within the cavity of the power tool, and (ii) the power tool is supported on the movable work support member.