Use this method if the door worked correctly before the spring s broke and the garage door has not been tampered with.
Garage rool up door torsion spring.
Dura lift 0 218 in x 2 in left and right wound 2 pack white steel garage door torsion spring.
If the garage door has two springs measure each spring individually.
Or more the energy they conserve is sufficient to cause a major injury or even death.
This extra tension keeps the door open by restricting the curtain from unrolling off the drums.
While garage door torsion springs can handle weights of up to 800 lbs.
Each torsion spring on the door typically has at least one turn when the door is fully open.
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To measure the torsion springs follow each of the following steps carefully.
Some smaller self storage roll up doors use only one torsion spring while most larger doors use two torsion springs.
It is not uncommon to have two different size springs.