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How to Measure Your Garage Door


Whether you are replacing an existing door or pricing doors for a new garage, you must measure properly to be sure you order the right size. The illustrated instructions below explain the process.


Step #1
Measure the width and height of the door opening in feet and inches. You will need a door the same size as this rough opening.


Step #2
Measure for sideroom. You will need 3 ¾" on each side to install the vertical track for standard extension springs, standard torsion springs, or the EZ-Set Torsion Spring System™. For an EZ-Set Extension Spring System™, you will need 5 ½"


Step #3
Measure your headroom -- the distance between the top of the door opening (jamb header) and the ceiling (or floor joist). You will need 10" headroom for standard extension springs or an EZ-Set Extension Spring System™. For standard torsion springs or an EZ-Set Torsion Spring System™, you will need 12" headroom. If you have restricted headroom, a "low headroom" track may be available for your door. Be aware that electric operators may require additional headroom.


Step #4 
Measure your backroom -- the distance from the door opening to the back wall of the garage. Door height plus 18" is required. Be aware that electric operators may need additional backroom.