How To Size A Garage Door Torsion Spring

I have a 17 x7 insulated garage door and one of my torsion springs broke last night.

How to size a garage door torsion spring.

Springs in general last about 10 14 years or 15 20 thousand. 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. They extend as your door moves and helps to balance your garage door. Extension springs do as their name suggests.

Spring length how long each spring is 4. When replacing garage door springs we always weigh the garage door and figure the ippt to ensure we. It is not uncommon to have two different size springs. The previous owner said that they replaced the original ones with smaller versions because that s all the store had in stock at the time.

Determining torsion spring size for new garage door without existing spring all i know is that it is a 16 x 7 ft 4 panel door weighing approximately 195 lbs and has 4 cable drums. I want to get the most appropriate size for my door but i dont know what needs to be considered. In order to order new garage door torsion springs you will need to measure as accurately as possible your current spring s and find the. Use this method if the door worked correctly before the spring s broke and the garage door has not been tampered with.

If the garage door has two springs measure each spring individually. Whatever the case garage door springs are an essential component of the garage door system and are independent of the automatic garage door unique opener. When you are preparing to buy a garage door spring you need to also take into consideration the overall cost of buying or replacing your springs. Finding the right size springs is a crucial part of repairing your garage door and ensuring it lasts for years to come.

Inside diameter 90 of doors have a 2 0 inside diameter 3. In this post you ll find a garage door spring chart for torsion springs and extension springs. If you cannot find the size. Dasma is a leading organization in our industry that created the guidelines and specifications for garage door springs.

Now everyplace or chart i ve looked at has a selection chart that requires original spring specs that i don t have. Spring orientation only worry about this if you have a 1 s. Dasma stands for the door access systems manufacturers association. 1 75 means the inside diameter is 1 inches.

For a 7 foot tall garage door you should put 29 quarter turns on each spring. 2 means the inside diameter is two inches etc. Height of the garage door can also affect the size of the spring or spring combination needed as well. Extension springs and torsion springs are the two kinds of garage door springs you ll find in garage doors.

To measure the torsion springs follow each of the following steps carefully. This system aids in proper identification for repair ordering and.