The exact location depends on the type of door.
Installing a garage door opener in a low finished ceiling.
The garage door opener mounting bracket also called the header bracket secures the carriage tube to the wall above the door.
In an unfinished garage attach the angle iron directly to the face of a joist with 1 in.
Anything below 5 inches from the ceiling to the door would be considered a low ceiling garage but as long as there is a clearance of at least 2 between the door and the ceiling then a specialist can most likely install any opener that you would like.
Lift the power unit.
Set it securely on top of a stepladder so it s conveniently close to the ceiling.
Lift the motor compartment into place on the ceiling and attach the rail and carriage to the bracket on the door.
For finished ceilings attach angle iron along the bottom of a joist with 3 in.
Attach brackets to the ceiling and door and position the end of the rail above the closed door.
To install a garage door opener first assemble the rail carriage pulley and motor compartment according to the instructions.
There are three types of openers.
It can be used on any sectional garage door that has clearance problems due to low ceilings or obstructions allowing the garage door opener track to be mounted much closer to the top of the garage door than is usually possible.