Garage Door Torsion Spring Calculator
How To Measure Garage Door Torsion Springs
Appears the following spring characteristics are important
- Wire Diameter
- Outer diameter
- Number of active coils
- Direction of the windings – Left hand or Right hand
I later found out that garage door springs are color coded as to the type of material in the spring?
Online spring calculator allows you to see the mathematically relevant terms. It's not for garage doors but the physics is the same.
There is an App that some garage door men use by SSC – Service Spring Corporation. Price = 5 USD.
