Planning
Identify the type and height of your garage door. Survey your garage area to see if any of the conditions below apply to your installation. Additional materials may be required. You may find it helpful to refer back to this page and the accompanying illustrations as you proceed with the installation of your opener.
SECTIONAL DOOR INSTALLATION
FINISHED CEILING
Horizontal and vertical reinforcement 
is needed for lightweight garage doors (fiberglass, steel, aluminum, door with
glass panels, etc.). See page 20 for details.
Header Wall
Slack in chain tension is normal when garage door is closed
Support bracket & fastening hardware is required.
See page 13.
Motor unit
Torsion OR Spring
Wall-
Extension Spring
— — | Door |
— | Center |
— — — |
|
— — |
|
mounted Access
Door Door Control
| Gap between floor |
| and bottom of door |
Safety Reversing Sensor | must not exceed 1/4" |
Safety
Reversing
Sensor
ONE-PIECE DOOR WITHOUT TRACK
| FINISHED CEILING | |
| Support bracket | |
| & fastening | |
Slack in chain tension | hardware is required. | |
See page 13. | ||
is normal when | ||
| ||
garage door is closed. |
| |
Header |
| |
Wall |
| |
| ||
| Door Control | |
Access | ||
Door |
| |
Motor Unit
ONE-PIECE DOOR WITH TRACK
Slack in chain tension is normal when garage door is closed
| Gap between floor |
| and bottom of door |
Safety Reversing | must not exceed 1/4" |
Sensor |
|
Safety
Reversing Sensor
4
Gap between floor and bottom of door must not exceed 1/4"
Access
Door
Safety
Reversing
Sensor