Torsion Springs vs. Extension Springs

The main types of garage door springs are torsion springs and extension springs. Each type has distinct characteristics and functions, and they are used in different garage door systems based on the door’s size, weight, and design.

Torsion Springs

Torsion springs are the most common type used in modern garage doors. They are mounted horizontally above the garage door opening on a metal shaft. Torsion springs operate by winding and unwinding, which generates torque that lifts and lowers the door smoothly.

Characteristics:

• Location: Mounted above the garage door on a metal shaft.
• Operation: Use torque (twisting force) to lift the door.
• Durability: Generally more durable and longer-lasting than extension springs.
• Performance: Provide smoother and more controlled door movement.

Types of Torsion Springs:

1. Standard Torsion Springs: Used in residential and light commercial doors.
2. Early Set Torsion Springs: Installed at the end of the torsion shaft, usually in systems with minimal headroom.
3. TorqueMaster Torsion Springs: Enclosed inside the torsion shaft for added safety and a cleaner look.
4. Steel Rolling Door Torsion Springs: Used in commercial and industrial applications with rolling steel doors.

Extension Springs

Extension springs are typically used in older garage door systems and are mounted on either side of the door. They stretch and contract to open and close the door, relying on a pulley system to provide the necessary lifting force.

Characteristics:

• Location: Mounted on each side of the door, running parallel to the horizontal tracks.
• Operation: Stretch and contract to provide lifting force.
• Durability: Generally less durable than torsion springs and may require more frequent replacement.
• Performance: Can result in a more jerky movement compared to torsion springs.

Types of Extension Springs:

1. Standard Extension Springs: Used in residential garage doors.
2. Safety Extension Springs: Feature safety cables running through the center to prevent accidents if the spring breaks.
3. Commercial Extension Springs: Heavier duty springs used in commercial garage doors.

Differences Between Torsion and Extension Springs

1. Location and Installation:
   • Torsion Springs: Mounted above the door, providing a more compact and aesthetically pleasing setup.
   • Extension Springs: Mounted alongside the door, requiring more horizontal space.
2. Operation and Performance:
   • Torsion Springs: Use torque to lift the door, resulting in smoother and more balanced operation.
   • Extension Springs: Stretch and contract, which can lead to a jerky motion and less precise control.
3. Safety and Maintenance:
   • Torsion Springs: Considered safer and require less frequent maintenance, but when they do break, they can cause significant damage due to the high tension.
   • Extension Springs: More prone to breaking, and when they do, they can snap back with force, potentially causing injury or damage.
4. Lifespan and Durability:
   • Torsion Springs: Generally have a longer lifespan and can handle more cycles (open and close operations).
   • Extension Springs: Typically have a shorter lifespan and may need to be replaced more often.

By understanding the differences and characteristics of torsion and extension springs, homeowners can make informed decisions about which type of garage door system is best for their needs.

Need help replacing your garage door springs?

Our friendly technicians are just a call away!