How To Look Up Garage Door Extension Spring Size

They extend as your door moves and helps to balance your garage door.

How to look up garage door extension spring size.

2 means the inside diameter is two inches etc. Springs in general last about 10 14 years or 15 20 thousand. Starting with our easy to use selection tool you can easily find the garage door extension springs you are looking for the 1st time. Extension springs and torsion springs are the two kinds of garage door springs you ll find in garage doors.

Most extension springs for 7 foot high doors are 25 inches long with a 42 inch stretch. Disconnect power and lifting arm of garage door opener. This extension spring is used on a seven foot garage door. As you might expect longer springs tend to be used on taller garage doors.

Measure door the height. 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. 3 springs are only sold in pairs. The pull weight of an extension spring is determined by the color code found on the end of the spring.

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. How to determine the correct extension spring for your garage door measure garage door springs correct garage door springs garage door parts garage door spring overhead door spring overhead door part 734 568 0287 mon fri 8am 4pm est. 8 doors require a 27 spring that stretches up to 48 75 total length when to door is closed extension springs are a non returnable item call customer service if you have any questions. It has a 25 inch relaxed or compressed length and a 42 inch stretched length which is how far the spring should be stretched when the garage door is closed.

Over time doors pick up weight. Torsion spring inside diameter and overall length in many cases the inside diameter of the torsion spring will be indicated on the stationary cone in between the two springs at the midpoint of the door. To weigh your door. Fasten c clamps or vice grips under bottom rollers to retain door.

Extension springs do as their name suggests. If you cannot determine the color code it will be necessary to weigh the door.