How to Measure Garage Door Springs

Service Spring shows you the many different ways you can determine the length, inside diameter, and wire size of a spring. These methods will work with both torsion springs and extension springs.

[@dessertfox3263]

Thank you for a clear explanation of how to use the measurement devices. My old springs are so rusty that the color code and whatever may have been printed on them is long gone. Thanks again.

[@RichRich007]

fantastic explanation! now I can order my spring and save $200 from technician.

[@arturoramirez5169]

According to a garage door installer i spoke to he said this method is only for torsion springs. I have a one piece door.

[@RichRich007]

how does the door bend when it rolls up if you have a one piece door?

[@gnic76]

@@RichRich007 He probably has one of the old swing out and up doors. They use a different type of spring.