Abstract: A tool functions as a third hand to supporting a wallpaper border roll at a working height while the wallpaper border roll is unrolled and applied to a wall. The tool has a pole and a tensioning device that lodges the pole against the ceiling. A holder attached to the pole holds the border roll at the application height. As the paper hanger advances along the wall the tool is moved also while maintaining the border roll at the application height. The tensioning device has spring loaded legs that spread apart when the pole is pushed down to dislodge the pole from the ceiling to move the tool along and advance the border. When the pole is released, the spring draws the legs together again lodging the pole against the ceiling.