This determines the strength of the spring.
How measure coil spring length garage door.
This measurement is to include all coils of the spring.
If your torsion spring is unbroken and unwound simply measure the length of the spring.
Step 1 spring length measure the entire length of the spring.
The only way to measure this accurately is to measure 10 20 30 and 40 coils and find a match on this chart.
To order the correct springs for your garage door you ll need to know a few details about your door system.
If your 10 coil count measures 2 1 2 inches you have 25 inch wires.
Wire size is the most important measurement.
Measure from the first coil on one end of the spring to the last coil on the other end of the spring.
If the spring is deformed to the point that an accurate length cannot be determined count the total number of coils of the unwound spring.
This determines the strength of the spring.
There are a number of wire size charts on the internet you can then use to determine the actual wire size based on your measurement.
In addition to knowing the garage door s weight and height and the spring s color code knowing how to measure the spring s dimensions can help you order the right springs.
If your spring is broken measure both pieces of the spring in their entirety.
Step 1 spring length measure the entire length of the spring.
If the spring is deformed to the point that an accurate length cannot be determined count the total number of coils of the unwound spring.
It is okay to round if you are very close.
Simply measure how far it is between 10 coils of the spring to the nearest 1 16 of an inch.
For other measurements talk to a garage door repair professional or find a 10 coil measurement chart online.
Cut a two by four this length with a handsaw.
To measure the wire size measure the length of 10 coils of the spring.
This measurement is to include all coils of the spring.
The only way to measure this accurately is to measure 10 20 30 and 40 coils and find a match on this chart.
Wire size is the most important measurement.
You need to determine the length of the unwound spring but you don t need to unwind the spring to measure the length.
If you have 1 1 4 inches in a 10 coil count the wires are 0 125.
It is okay to round if you are very close.
