Open the box and remove the contents.
Dry fit the track in the opening. The track can be shortened with a hack saw, but, remember to clean out any shavings before they get mixed up with the grease.
The next step is a lot easier if you get someone to give you a hand. Stand the door on end then feed the track onto the wheels making sure each of wheels is properly aligned. Place the track and door into the opening then screw one end of the track to the header using the screws provided. We suggest putting the first couple screws in at this time.
Move the door across the track as shown exposing the other end of the track.
Secure the remainder of the track.
Dry fit the jamb molding directly under and touching the track. Check that the jamb molding is plumb and mark the edge for reference during installation.
Using a pencil mark the location of the strike hole
Using a 3/8" bit drill out the marked strike hole plus the area 1/2 " above to a depth of 1/2".
Install the jamb molding tight to the track and lined up with the mark made earlier.
Stack the door tight against the jamb and let it hang plumb. Using a pencil mark the location of the jamb panel edge.
Extend the door, line the jamb panel up with the marks you made and screw it to the jamb using the screws provided. We suggest securing it in at least three places (low, middle and high) and doing the low place first.