How To Determine Garage Door Tension Force

With most new garage doors there will be two torsion springs separated by a divider that s located at the midpoint of the door.

How to determine garage door tension force.

So if the spring to your left is broken you want to order a right wound spring. On the other hand a left hand winding spring is wound in an anti clockwise direction and has its end of wire on the left side. Spring length how long each spring is 4. On the contrary it is very simple to determine the winding type of a garage door spring.

Spring orientation only worry about this if you have a 1 s. 1 divide the total spring s ippt by the cable drum multiplier 2 multiply the spring ippt by the number of turns and then divide by the hi moment arm. This method of measuring your torsion spring requires you to measure the existing springs. When the garage door is closed the torsion spring is in its deflected condition torqued up.

Inch pounds per turn. When the garage door is open the spring is in its equilibrium state natural condition. This video applies t. The right hand winding springs are wound in a clockwise direction.

You need proper tension on a garage door to operate the door by hand or with an automatic opener. This is sometimes referred to as the spring s lift power how much weight the torsion spring can lift. Thus they have their end of wire on the right side. How to adjust garage door tension.

If the tension is too loose the springs that help lift the. Torsion springs and garage door weight torsion springs need to provide enough force to equal the weight of the door. Force spring exerts per 1 turn of the spring. The spring to your right is a left wound spring and the spring to your left is the right wound spring.

In order to order new garage door torsion springs you will need to measure as accurately as possible your current spring s and find the. The spring s individual measurements are also important they determine the spring s lift. All tension must be released from springs before any work is performed. Measure the distance from the top of the closed door to the bottom of the horizontal track.

Inside diameter 90 of doors have a 2 0 inside diameter 3. Determine if your door is opening and closing the way you would like and ensure it s balanced closes evenly and without gaps.