How To Choose The Right Garage Door Extension Springs

2 weigh the door.

How to choose the right garage door extension springs.

If you use an extension spring with a different first number you need to adjust your cable length to achieve the necessary 10 percent of stretch when your door is open. Choosing springs that can support the weight will provide you with a properly balanced door. 1 extension springs are color coated see the chart below and order accordingly. For a single car door place a bath scale in the center of the opening remove all spring tension from the door and lower the door onto the scale.

To prevent faulty overhead doors its important to choose an ideal extension spring based on the weight of the door it is being installed upon. Determining the correct spring for your door can be done one of several ways. Garage door springs must properly match the door s weight. This forces the spring to stretch farther to allow the door to close which creates extra tension affects how the door is lifted and compromises the life of the spring.