How to Measure for Your New Omega Garage Door
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- Measure existing door width and height in feet and inches.
This determines the size of door needed. The rough opening should
be the same size as the door.
- Measure for sideroom: 3-3/4" is required on each side for
installation of the vertical track for standard extension or
- Measure area labeled "headroom"—distance between the top of
the door opening ("jamb header") and the ceiling (or floor joist).
10" is required for standard installation of extension springs, 12" on standard torsion springs.
14" of headroom required for Carriage House doors. If you have
restricted headroom, special hardware is available. Low headroom
hardware is available to reduce requirement to as low as 4-1/2". Note: If door height extends above
the opening, the headroom measurement should be adjusted
- Measure area labeled "backroom". Distance is measured from the
garage door opening toward the back wall of the
Common garage door
sizes include 8' wide x 7' high, 9' wide x 7' high and 16' wide x
7' high. Omega Door provides most doors in nearly any size you