How To Select Garage Door Extension Springs

Extension springs are manufactured specifically for the height of a garage door.

How to select garage door extension springs.

1 extension springs are color coated see the chart below and order accordingly. Disconnect power and lifting arm of garage door opener. Measuring the garage door extension springs first measure the length of the spring. Extension springs store energy by extending while the door is closing and then releasing the stored energy while the door is opening.

How to order garage door extension springs. Let s say you re looking at a seven foot extension spring 25 x 42. To weigh your door. Measure door the height.

You will need to know the height and weight of your door to order replacement springs and then select the type of spring ends best fit your needs. How to choose garage door extension springs. 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 order the correct extension spring for your garage door you will need to know the height and weight of your door.

Extension springs are also color coded but the colors repeat every hundred pounds so you should verify you are selecting the correct spring based on the height weight and color if possible. Fasten c clamps or vice grips under bottom rollers to retain door. 3 springs are only sold in pairs. You must measure the garage door extension springs to understand what springs you are going to need to order.

Won t have any problems staying open. The pull weight of an extension spring is determined by the color code found on the end of the spring. Extension springs run parallel to the tracks of the door and are typically situated between the tracks and the garage ceiling. If you cannot determine the color code it will be necessary to weigh the door.

Once you know the total weight of your garage door using a bathroom scale for doors under 300 pounds you can use the chart below to see the color extension spring you need. 2 weigh the door. The spring should be measure as it is unwound. If your door is 210 pounds you would need a pair on for each side of the 210 pound white springs.

Garage door extension springs run along the door s horizontal track and help to open and close your garage door as the springs stress and compress.