A clear guide to choosing the correct torsion spring wind direction before ordering replacement springs.
When replacing garage door torsion springs, choosing the correct wind direction is just as important as choosing the correct wire size, inside diameter, and length. Most standard two-spring garage doors use one left-wind spring and one right-wind spring working together to keep the door balanced.
Torsion springs are manufactured with the coil wound in a specific direction. That direction determines which side of the garage door the spring is normally installed on and how it will apply torque when the system is wound.
When you look at the end of the spring, a left-wind spring continues in a clockwise direction.
When you look at the end of the spring, a right-wind spring continues in a counterclockwise direction.

The easiest first check is to look directly at the end of the spring. Imagine the coil continuing forward. The direction it continues helps you identify whether the spring is left-wind or right-wind.
Stand inside the garage and face the garage door. On many standard residential torsion systems, the spring mounted on the left side of the center bracket is usually a right-wind spring, while the spring mounted on the right side of the center bracket is usually a left-wind spring.

If you can safely view the end of the spring without loosening hardware or touching the spring, check the direction of the final coil. This is one of the clearest ways to confirm wind direction.

Some torsion spring cones or markings may use colors to help identify wind direction. In many common setups, red markings are associated with right-wind springs and black markings are associated with left-wind springs.
A red cone or red marking may indicate a right-wind torsion spring.
A black cone or black marking may indicate a left-wind torsion spring.
If left-wind and right-wind torsion springs are installed incorrectly, the door may not balance properly and the system can become unsafe. Watch for these warning signs.
The door may start moving but stop early or fail to lift fully.
The door feels unusually heavy when lifted by hand, even if the opener is disconnected.
The door drops quickly, slams shut, or will not stay open when raised.
Cables may become slack or jump out of the drum grooves.
If coils move apart instead of tightening, the spring may be installed on the wrong side.
The door may lift crooked, move in a jerky way, or feel unstable.
A spring that appears snake-like or not straight on the shaft should be inspected.
Most standard two-spring torsion systems rely on one left-wind spring and one right-wind spring working together. If one spring has failed, the other spring has usually gone through the same number of cycles and may be near the end of its life as well.
If you are not sure whether you need a left-wind or right-wind spring, contact Best Garage Door Parts before placing your order. You can send your spring measurements and photos so the correct replacement can be confirmed.
Call: +1 386-569-8223
Garage door torsion springs are under extreme tension and can cause serious injury or property damage if handled incorrectly. Do not loosen set screws, remove hardware, wind, unwind, or repair torsion springs unless you are trained and qualified to do so. When in doubt, contact a professional garage door technician.
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