Installation & Assembly

5
Step 2.
Measure the height of the door and apply the formula above to draw a
horizontal line that is same length as the track. The line has to be level. Next,
you can hold the track up to align with the horizontal line to make sure the line
is at the center of the pre-drilled holes of the track.
Step 3.
Use a drill with 11/64” drill bit and then drill holes on the marks.