Right hand winding springs wind in a clockwise manner with the end wire on the right while left hand winding springs go anticlockwise with their end wire on the left.
Garage door spring winding direction.
How to determine wind direction.
Using a right wound spring where left wound is needed will interfere with and perhaps prevent the operation of the door.
It is important to check the winding of your current spring to avoid buying the wrong one.
Black winding cone torsion springs are used on the right side of the door and red winding cone torsion springs are used on the left side of the door when viewing the door from the inside looking out.
Replacement of torsion springs is among the most common garage door spring repairs performed by companies that specialize in garage doors.
Most of the time the end on the right hand wind is red and the left and wind is black as you can see on the graphic below.
Right wound left wound or both.
Failure to install the torsion springs on the correct side will cause your door to function improperly and could result in serious injury.
In most cases you can determine the wind of your garage door torsion spring by using the color coded system on the cones at the end of the spring.
Usually you will have two springs on your door which will be color coded.