Abstract: A sliding door for a doorway comprising a door frame, an upper horizontal housing extending across the top of the door frame, a rear stationary panel mounted within the door frame to one side of a door opening in the door frame, and means for mounting the sliding door for horizontal sliding movement from a closed position over the door opening to an open position in front of the stationary panel. A vertical side of the sliding door abuts over a vertical side of the stationary panel, and a vertical track is mounted on the vertical side of the sliding door between the sliding door and the stationary panel. A vertical pivot arm is pivotally mounted adjacent its upper end in the upper housing in substantial alignment with the vertical side of the sliding door when the sliding door is in its closed position. A guide roller is mounted on the lower end of the vertical arm and received within the vertical track.