The Difference Between Torsion and Extension Springs
For those of you who aren’t too familiar with garage doors and the many parts that allow them to function, you might not know the difference between torsion springs and extension springs. They might seem like they are the same thing, or you might use the terms interchangeably, but they are in fact two completely different springs. They have a similar job, but they achieve it in different ways. So if you want to know what the difference between torsion springs and extension springs is, then read on.
Extension springs, much like torsion springs, assist in lowering and raising the garage door. With extension springs, they are fully extended when the garage door is down, or in other words, when the garage door is closed. When the garage door is raised, the extension springs contract. Like any type of spring, extension springs will wear out and stretch over time. A stretched extension spring will offer much less assistance when opening and closing the garage door, causing more strain on the garage door opener. Extension springs work on their own. That means that one can wear out more than the other, which can cause more wear on one part of the garage door than another.
Torsion springs work together and provide a smoother and more even opening and closing of your garage door. Not only is the opening and closing of the door more smooth with a torsion spring, but it is also more controlled. Some garage doors with extension springs will appear to jerk downward at times, making the motion quite unnatural looking. This is not a problem with torsion springs as they lower and raise the door with great control. So if you want to ensure that your garage door opens as smoothly as possible, and wears as evenly as possible choose a garage door with torsion springs.