Garage door springs enable the door movement and there are 2 main types:
- Extension springs
- Torsion springs
Extension springs
Extension springs are mainly installed on residential garage doors and they are mounted above the horizontal tracks on each side of the door. When the door opens the springs stretch and when it closes they contract.
The springs purpose is to carry the door’s weight and to securely promise the safe motion of the door.
Torsion springs
Torsion springs use torque which is a twisting force to lift the garage door, they are attached to a bracket with a stationary cone from one side and to a winding cone on the other side.
These springs have specifications that determine their qualities like:
- Length of the spring
- Inner diameter of the spring
- Wind
- Wire size
Main torsion spring for different door applications:
There are different types of torsion springs each fitting for specific doors and needs. Early set torsion springs are installed at the center of the shaft and need special tools for the installation.
Standard torsion springs which are the most common for residential doors are placed above the door and supported by a shaft, while heavy doors need 2 springs lighter doors only need one.
Steel rolling door torsion springs are used in commercial facilities and are mounted inside the torsion barrel to support the heavy door as it rolls up and down.
Torque master torsion springs run through the torsion shaft and require a power drill to wind. Standard commercial springs are almost the same like residential springs but are designed to handle heavy duty commercial doors.
