torsion spring

Torsion Springs for Residential Garage Doors: What You Need to Know

Torsion springs are an important component of a garage door system, as they provide the necessary torque to lift and lower the door. These springs are located above the garage door, and are typically mounted to a metal shaft that runs through the center of the springs. Torsion springs are coiled wire that is shaped into a helical form, with the ends of the wire attached to other components in the garage door mechanism.

Size of Torsion Springs

When it comes to selecting torsion springs for a residential garage door, size is an important factor to consider. The size of a torsion spring refers to its physical dimensions, as well as its load-carrying capacity. There are several factors that influence the size of torsion springs for residential garage doors. These include the weight of the door, the required torque or rotational force, the angle of deflection, and the available space for the spring.

To determine the size of torsion springs for a residential garage door, you will need to know the following information:

  • The weight of the door: This is an important factor to consider because the torsion springs will need to be able to support the weight of the door as it is raised and lowered. The weight of the door is typically measured in pounds.

  • The available space: This is the amount of space that is available for the torsion springs. It is important to consider the size of the springs in relation to the space they will be installed in.

  • The angle of deflection: This is the angle through which the torsion springs will be twisted. It is typically measured in degrees.

  • The required torque: This is the rotational force that the torsion springs will need to apply in order to lift the door. It is typically measured in inch-pounds (in-lbs) or Newton-meters (Nm).

Once you have this information, you can use a torsion spring calculator or consult a spring manufacturer to determine the size of the torsion springs you need. The spring calculator will take into account the weight of the door, required torque, angle of deflection, and available space to calculate the size of the springs.

Key Considerations While Selecting Torsion Springs

There are a few key considerations to keep in mind when selecting torsion springs for a residential garage door. First, you will need to choose the material for the springs. Common materials for torsion springs include music wire, stainless steel, and high-carbon steel. Each material has its own characteristics that make it more or less suitable for different applications.

Next, you will need to determine the size of the wire that will be used to make the torsion springs. The wire size is typically measured in terms of diameter, with larger wire sizes able to carry more load.

Finally, you will need to decide on the number of turns that the torsion springs will have. More turns will result in a softer spring, while fewer turns will result in a stiffer spring. The number of turns will also influence the load-carrying capacity of the torsion springs.

Facts you Should Know About Torsion Springs

  1. The torsion spring system could consists of one, two, three or four springs, each mounted on its own metal tube, which are connected to the center shaft. As the garage door is raised, the springs wind around the shaft, storing energy. When the door is closed, the stored energy is released, helping to lift the door as it is opened.
  2. Torsion springs are designed to last for a specific number of cycles, depending on the size and type of the spring. For example, a standard torsion spring may be rated for 10,000 cycles, while a high-duty spring may be rated for 25,000 or more cycles.
  3. It is important to regularly check the torsion springs on your garage door to ensure that they are in good working order. If a spring is broken or damaged, it will need to be replaced in order to ensure the proper operation of the garage door.
  4. When replacing torsion springs, it is important to use the correct size and type of spring for your specific garage door. Using the wrong size or type of spring can result in serious injury or damage to the garage door system. It is recommended to hire a professional to replace torsion springs, as the process can be dangerous if not done correctly.


In conclusion, torsion springs are an essential component of a garage door system, providing the necessary torque to lift and lower the door. It is important to regularly check and maintain these springs, and to use the correct size and type when replacing them.

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