How To Determine Garage Door Spring Strength

The only way to measure this accurately is to measure 10 20 30 and 40 coils and find a match on this chart.

How to determine garage door spring strength.

It is okay to round if you are very close. Measure the thickness of the wire in the spring. Finally to test if your springs need replacing. In order to process your order for springs please provide the following information about each spring.

Wire size is the most important measurement. 2 weigh the door. This determines the strength of the spring. This is sometimes referred to as the spring s lift power how much weight the torsion spring can lift.

If your door stayed in place that is a good indication that your springs are still in great shape. Spring length how long each spring is 4. Measure the spring from the first to the last coil. Spring orientation if ordering just one spring left.

1 length 2 wire size 3 inside diameter 4 spring wind and 5 type of ends. 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. Inside diameter 90 of doors have a 2 0 inside diameter 3. Torsion springs and garage door weight torsion springs need to provide enough force to equal the weight of the door.

The spring s individual measurements are also important they determine the spring s lift. In most cases the stretch of the extension spring should be half of the door height. 1 extension springs are color coated see the chart below and order accordingly. Lubricating your hinges once per year will extend the garage door spring s life.

In order to order new springs you will need to measure as accurately as possible your current spring s and find the. Lower your door to approximately 2 feet from the ground. If you have two springs on a residential or commercial door it is critical that you measure both springs approximately 30 of manufacturers and service companies mix wire sizes. This means for a 7 foot high door 84 inches the spring stretch would be 42 inches.

Most extension springs for 7 foot high doors are 25 inches long with a 42 inch stretch. Determining the correct spring for your door can be done one of several ways. Measurements you ll want to note include.