Spring length how long each spring is 4.
How to look up garage door spring size.
For a double door use two bath scales a foot in from each side of the opening.
Springs are too small.
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.
1 75 means the inside diameter is 1 inches.
When replacing garage door springs we always weigh the garage door and figure the ippt to ensure we.
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.
Springs are too big.
Usually most garage doors.
How to know the garage door spring to buy 1.
Check out the garage door springs from inside your garage.
For your broken spring s measure the inside diameter of the spring.
If the spring is in one piece you can normally find the id on the cones p175 for 1 3 4 and p200 for 2.
To get the measurement all you need to do is to measure from the first coil on one end to the last coil on the other end of the garage door spring including the coils that are in the cone.
When the spring is too small the door is way too heavy.
If you have a broken torsion spring read below to make the measurements you need and then purchase a new garage door spring or springs.
These springs typically come in 1 3 4 2 and 2 1 4 inside diameters.
Height of the garage door can also affect the size of the spring or spring combination needed as well.
For a 7 foot tall garage door you should put 29 quarter turns on each spring.
Spring orientation if ordering just one spring left.
Determine the wind direction.
In order to order new springs you will need to measure as accurately as possible your current spring s and find the.
Measure the length of ten or twenty coils of the particular spring.
In the video below you see two cases of improper spring size.
2 means the inside diameter is two inches etc.
Step 2 determine spring wind.
In the first example the spring is too small.
Selecting the right garage door spring.
Opening and closing the door with springs that are too small can end up damaging your garage door and your opener.
Standard residential torsion springs are found on a shaft above the center of the garage door.