How To Measure Garage Door Torsion Spring Length

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.

How to measure garage door torsion spring length. If your torsion spring is unbroken and unwound simply measure the length of the spring. Knowing the spring s length can help you find the wire size on the chart above. If your spring is broken measure both pieces of the spring in their entirety. Inside diameter 90 of doors have a 2 0 inside diameter 3.

Spring orientation only worry about. For a more accurate measurement start at the 1 mark on your ruler. Spring length how long each spring is 4. When measuring your torsion spring remember that in order to get a proper measurement the spring must be un wound.

Measure from the first coil on one end of the spring to the last coil on the other end of the spring. Finally the overall length of the spring. To figure the wire size you will need to. The first measurement you will need to get is the wire size.

If your torsion spring is broken loosen the setscrews on the winding cone. Change the fraction into a decimal and divide by 10. Convert the measurement to decimals if it measure 2 1 2 inches that would be 2 50. Do not include the cones in the measurement.

Finally measure the spring length when it is closed. To get the correct length for a torsion spring under tension subtract one coil for each foot of height of your garage door then measure the remaining coils. Do not include cones in the measurement. If your spring is broken push the pieces back together so that no gap exists before measuring.

Step 4 determine spring wind. Measure the spring length. When a garage door torsion spring breaks in half both parts must be pulled together on a flat surface to get a proper measurement of the length. If the spring is in two parts unscrew set screws and connect spring ends together to get a total measurement.

This measurement is to include all coils of the spring. Step 1 spring length measure the entire length of the spring. Determine the direction of the spring s wind. This is the wire size.

Measure 10 coils to the nearest 1 16. If you can still see the paint on your torsion spring then the direction is easy to determine. Simply place the two broken ends into place with one another then pull a tape measure across the full length.