How to Measure Garage Door Spring: A Comprehensive Guide

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    How to Measure Garage Door Spring

    Garage door springs are an essential component of the garage door system. These springs provide the necessary tension for the garage door to open and close smoothly. However, due to wear and tear, garage door springs can break or lose their tension, making it difficult or impossible to open and close the garage door. In such cases, it becomes necessary to measure the garage door springs accurately to replace them with new ones. In this comprehensive guide, we will walk you through the steps on how to measure garage door spring accurately.

    Understanding Garage Door Springs

    Before measuring the garage door springs, it is essential to understand the two types of garage door springs. These include the torsion springs and the extension springs.

    Torsion springs are located above the garage door opening, and they provide the required tension by twisting and unwinding. Torsion springs are available in various sizes and strengths, depending on the weight and size of the garage door.

    Extension springs, on the other hand, are located on the sides of the garage door and stretch to provide the necessary tension. Extension springs are also available in different sizes and strengths, depending on the garage door’s weight and size.

    Steps to Measure Garage Door Spring

    To measure your garage door spring, follow these simple steps:

    Step 1: Determine the Type of Spring

    The first step in measuring garage door springs is to determine the type of spring installed on your garage door. As mentioned earlier, there are two types of springs; torsion springs and extension springs. Knowing the type of spring is essential as it determines the measurement method to use.

    Step 2: Measure the Garage Door Height

    The next step is to measure the garage door height. You can do this by using a measuring tape to measure the distance between the floor and the top of the garage door. The measurement should be taken from the center of the garage door.

    Step 3: Measure the Inside Diameter of the Spring

    The inside diameter of the spring refers to the measurement of the spring’s opening. To measure this, you need to use a caliper to measure the inside diameter of the spring. Ensure that you take the measurement from the center of the spring.

    Step 4: Determine the Wire Size of the Spring

    The wire size of the spring refers to the thickness of the spring wire. To measure this, you need to use a micrometer to measure the wire’s thickness. Ensure that you measure the wire’s thickness at various points to get an accurate reading.

    Step 5: Count the Number of Coils

    The final step in measuring the garage door spring is to count the number of coils. Count the number of coils in the spring while the spring is still intact. Ensure that you count all the coils from one end to the other.

    Frequently Asked Questions

    Q1. How long do garage door springs last?

    Garage door springs have a lifespan of about 10,000 cycles. This means that they can last for about 7-10 years, depending on the frequency of use. However, some factors can affect the lifespan of the springs, such as extreme temperatures, humidity, and poor maintenance.

    Q2. Can I replace the garage door spring myself?

    Garage door spring replacement is a dangerous task and should be left to professionals. The springs are under high tension, and if mishandled, they can cause serious injuries or even death. It is recommended to contact a professional garage door repair technician to replace the garage door spring.

    Q3. What are the signs of a broken garage door spring?

    Some signs that your garage door spring is broken or has lost tension include the garage door opening and closing slowly or unevenly, the garage door making loud noises, or the garage door appearing lopsided when opening and closing. You may also notice that the garage door opener struggles to lift the door or fails to open the door at all.

    Q4. Can I use different-sized springs for my garage door?

    No, it is not recommended to use different-sized springs for your garage door. The size and strength of the spring must match the weight and size of the garage door. Using the wrong-sized spring can lead to uneven tension, causing the garage door to malfunction or even collapse.

    People Also Ask

    Q1. What is the average cost of garage door spring replacement?

    The cost of garage door spring replacement varies depending on the type of spring, the size of the garage door, and the labor costs in your area. Generally, the cost can range from $150 to $350 per spring, including installation.

    Q2. How often should I have my garage door springs inspected?

    It is recommended to have your garage door springs inspected by a professional technician at least once a year. Regular inspection and maintenance can help to identify any potential issues and prevent costly repairs or replacements.

    Q3. Can I use WD-40 to lubricate my garage door springs?

    No, WD-40 is not recommended for lubricating garage door springs. WD-40 is a degreaser and can cause the springs to dry out and lose their tension. It is recommended to use a silicone-based lubricant specifically designed for garage door springs.

    Q4. How do I know if my garage door spring is the right size?

    To determine if your garage door spring is the right size, you can compare the measurements of the existing spring with the manufacturer’s specifications. You can also consult a professional garage door repair technician who can help you determine the correct size and strength of the spring.


    Measuring garage door springs accurately is essential when replacing broken or worn-out springs. By following the steps outlined in this comprehensive guide, you can measure your garage door springs accurately and ensure that the replacement springs match the weight and size of your garage door. Remember to always prioritize safety and contact a professional garage door repair technician for any repairs or replacements. With these tips, you can ensure that your garage door operates smoothly and safely for years to come.

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