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