Garage Doors Torsion Vs. Extension

Extension Springs

• Extension springs are shaped similarly to those in a set of box springs for a bed. They are typically mounted with spring arms on each side of the door. The springs include a hook on each end, and are purchased in their compressed state. Extension springs have a life span of 5,000 to 10,000 lifts.

Torsion Springs

• Torsion, or torque springs are made of twisted steel; their appearance is similar to the spring mechanism in an old-fashioned mouse trap. The twist in the steel is where the force in the spring lies. Their construction is sturdier than extension springs and they have a lifespan of up to 20,000 lifts.

Considerations

• While extension springs are the most commonly used for garage doors, torsion springs can be used as well. Extension springs are less expensive than torsion springs because there is no protective mechanism around the spring. You can ask for either extension or torsion springs upon installation of your garage door.