Do not use a digital scale as they often will not respond to the door weight changing as rollers no longer stick to the track.
Garage door extension spring proper installation.
The easiest way to do this is to take the broken spring to a local garage door dealer or home improvement center so they can help you find an exact match.
This video will show you how to replace the extension springs on your garage door.
Tie the extension spring to the roller track then detach the cable from the bottom bracket with a pair of pliers.
The new spring s diameter length and wire size or gauge must be the same as your old spring.
Installation of a standard extension spring for an ideal garage door.
Garage door springs come in two styles.
This video will show you how to replace the extension springs on your garage door.
Place scale under the garage door on the side of the door with the broken extension spring.
You may need to use a 2x4 or some other object to pry the garage door open.
Purchase new garage door extension springs.