Abstract: A support system for a gate assembly including a frame having an upper rail adapted to be mounted adjacent an opening in a fence and actuatable between an open position exposing the gate opening and a closed position overlying the gate opening comprising an elongated hollow channel member defining a trackway having a downwardly depending elongated slot in the lower face of the channel member, a longitudinally extending side face of the channel having a configuration conforming generally to the contour of the upper rail of the gate, at least one bracket having a portion conforming to the contour of the upper rail and bolt means securing the upper rail of the gate assembly between the channel member and bracket, and at least one truck having roller means mounted on a post comprising part of the fence assembly adjacent the gate opening engageable in said trackway permitting movement of the gate assembly relative to the opening between open and closed positions.