Types of (Common) Garage Door Spring Mechanisms
Did you know that there are two (main) different types of spring mechanisms you can install in your garage door? One can either choose to have torsion or extension springs on their garage door, each of which boasts its own benefits. But how does one determine which type of spring mechanism is the most efficient or, at the least, is the most fitting for them? In order to answer this, you must ask yourself whether efficiency or cost-effectiveness is paramount to you. Below you will find an in-depth comparison of the different types of garage door spring mechanisms.
Extension springs are somewhat ubiquitous in the commercial garage door industry; they are remarkably cheap and provide ample tension for lifting a typical residential garage door. As the name of these springs implies, they create the tension to lift the door by extending along the horizontal tracks above the door (typically). Extension springs must be paired with safety cables in order to prevent them from being launched in any direction when they finally break. Although these springs are cheaper and will suffice for a residential garage, they are significantly more dangerous than torsion springs, bearing more exposed parts, and will not last nearly as long. Extension springs will last an average of 10,000 cycles (open and close motions).
Torsion springs are installed above the garage door as extension springs are, although the method of raising and closing the door varies. Torsion springs implement torque to move the door by slowly coiling along the shaft. The use of torsion springs ensures that your garage will open and close with a controlled motion, as opposed to the potential jerking motion extension springs will provide. Additionally, since torsion springs do not extend, they are able to last much longer than extension springs, enduring between 15,000 and 20,000 cycles on average. They are also able to lift significantly more weight than an extension spring, which is more practical for users with more cumbersome doors. Torsion springs present little danger when they break, whereas extension springs present the potential to shoot in any direction and cause harm to anyone standing in their path. They are available in a myriad of different sizes to fit your individual door. The only drawback to torsion springs is their higher price, although you are getting what you pay for in regards to overall quality and efficiency.