Measure the length of ten or twenty coils of the particular spring.
How to look up garage door spring size.
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.
2 means the inside diameter is two inches etc.
For a double door use two bath scales a foot in from each side of the opening.
Usually most garage doors.
Step 2 determine spring wind.
Spring orientation if ordering just one spring left.
In the first example the spring is too small.
These springs typically come in 1 3 4 2 and 2 1 4 inside diameters.
For a 7 foot tall garage door you should put 29 quarter turns on each spring.
Typically residential springs will have a 1 3 4 or 2 inside diameter.
For your broken spring s measure the inside diameter of the spring.
How to know the garage door spring to buy 1.
Height of the garage door can also affect the size of the spring or spring combination needed as well.
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.
When the spring is too small the door is way too heavy.
Check out the garage door springs from inside your garage.
When replacing garage door springs we always weigh the garage door and figure the ippt to ensure we.
1 75 means the inside diameter is 1 inches.
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.
Springs are too small.
Determine the wind direction.
In the video below you see two cases of improper spring size.
Opening and closing the door with springs that are too small can end up damaging your garage door and your opener.
Springs are too big.
Contrary to what most believe you don t need to actually unwound the spring in order to measure the length of the spring.
Inside diameter 90 of doors have a 2 0 inside diameter 3.
Measure the wire size.
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.
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.
Selecting the right garage door spring.