Open the door you want to install the hanger onto at a 90-degree angle so it is perpendicular to the door frame.
Hold the door hanger up to the door and mark the mounting holes in the hanger on the door with a pencil. Set the door hanger aside.
Choose a drill bit that is slightly smaller in diameter than the mounting screws that came with the door hanger.
Fit the bit into the drill and tighten the chuck.
Drill pilot holes in the door through the pencil marks.
Hold the door hanger against the door, aligning the mounting holes in the hanger with the pilot holes you drilled in the door.
Insert mounting screws into the door hanger and fasten them tightly with a screw gun to finish the installation.