How to measure garage door torsion springs?

How to measure garage door torsion springs?


When it comes to measuring garage door torsion springs, accuracy is crucial to ensure proper functioning and safety. Torsion springs are responsible for counterbalancing the weight of the garage door, making it easier to open and close. In this article, we will explore the steps involved in measuring garage door torsion springs accurately.

Understanding Torsion Springs

Before we delve into the measurement process, it’s essential to understand the basic components of torsion springs. Torsion springs are tightly wound coils of metal that store mechanical energy when twisted. They are typically mounted above the garage door and connected to a shaft. When the door is closed, the torsion springs are under tension, and when the door is opened, they unwind to assist in lifting the door.

Measuring Torsion Springs

Step 1: Gather the necessary tools: Before measuring the torsion springs, ensure you have the following tools: a tape measure, a winding bar, safety glasses, and gloves. These tools will help you accurately measure and handle the springs safely.

Step 2: Release tension: To measure the torsion springs, it’s crucial to release the tension first. This can be done by opening the garage door fully and securing it in place with clamps or locking mechanisms. This step is essential for your safety as it prevents the springs from unwinding forcefully.

Step 3: Measure the length: Once the tension is released, you can proceed to measure the length of the torsion springs. Start by measuring the length of a single spring from one end to the other, excluding the cones or winding mechanism. Use a tape measure to get an accurate measurement.

Step 4: Measure the wire size: The wire size refers to the thickness of the spring wire. To measure the wire size, you can use a caliper or a wire gauge tool. Measure the diameter of the wire and refer to a wire gauge chart to determine the wire size.

Step 5: Determine the wind direction: Torsion springs can be wound in either a clockwise (right-hand wind) or counterclockwise (left-hand wind) direction. It’s crucial to determine the wind direction before ordering or replacing torsion springs. To determine the wind direction, stand inside the garage facing the closed door. If the spring is on the left side, it is a right-hand wind, and if it is on the right side, it is a left-hand wind.


Accurately measuring garage door torsion springs is essential for proper functioning and safety. By following the steps outlined in this article, you can ensure that you measure the length, wire size, and wind direction correctly. Remember to always prioritize safety by releasing the tension before measuring the springs.