What size garage door extension spring do i need?

Welcome to the MM Garage Door Repair Utah blog! As your local garage door experts, we understand that dealing with garage door springs can be tricky. One of the most common questions we get is: “What size garage door extension spring do I need?” Choosing the right spring is crucial for the safe and efficient operation of your garage door. Using the wrong size can lead to premature wear, damage to your door and opener, and even serious injury. This guide will walk you through the process of determining the correct extension spring size for your garage door.

Understanding Garage Door Extension Springs

Before we dive into sizing, let’s quickly cover what extension springs are and how they work. Extension springs are located above the horizontal tracks on either side of your garage door. They work by stretching as the door closes and contracting as the door opens, providing the necessary counterbalance to lift and lower the heavy door. The amount of force a spring can exert is determined by its length, wire gauge, and inside diameter.

Why Correct Spring Size Matters

Using the correct size extension spring is essential for several reasons:

• Safety: Incorrect springs can cause the door to slam shut or open too quickly, posing a significant safety risk.
• Proper Operation: The right springs ensure the door opens and closes smoothly and evenly.
• Longevity: Using the wrong springs can put undue stress on the garage door opener and other components, leading to premature failure.
• Balance: A properly balanced door is easier to lift (manually or with an opener) and reduces strain on the system.

Steps to Determine the Correct Extension Spring Size

Here’s a step-by-step guide to help you determine the correct extension spring size for your garage door. Safety First! Before you begin, disconnect the garage door opener and secure the door in the open position using clamps or locking pliers on the track. This will prevent the door from accidentally closing while you’re working.

Step 1 Gather Your Tools

You’ll need the following tools:

• Tape measure
• Scale (bathroom scale will work)
• Pencil and paper
• Spring identification chart (available online or from your local garage door supplier)

Step 2 Weigh Your Garage Door

The weight of your garage door is the most crucial factor in determining the correct spring size. Here’s how to weigh it:

1. Carefully detach the existing springs from the door. Warning: If you are not comfortable doing this, please call a professional.
2. Lift the door manually. It will be heavy, so get help if needed.
3. Place the bathroom scale under the center of the door.
4. Carefully lower the door onto the scale.
5. Record the weight.

If you can’t safely weigh the door directly, you can estimate its weight based on the door’s construction material (wood, steel, aluminum) and dimensions. However, direct measurement is always more accurate.

Step 3 Measure the Existing Springs (If Available)

If you’re replacing existing springs, measuring them can provide valuable information. Here’s what to measure:

• Length: Measure the spring’s total length, including the coils and the end loops.
• Wire Gauge: The wire gauge is the thickness of the wire used to make the spring. The easiest way to determine this is by counting the number of coils in a relaxed inch. Then, use a spring chart to determine the wire gauge.
• Inside Diameter: Measure the inside diameter of the spring.

Step 4 Use a Spring Identification Chart

Once you have the weight of your door and the measurements of your existing springs (if available), you can use a spring identification chart to determine the correct spring size. These charts are readily available online or from garage door supply stores. They typically list spring sizes based on door weight and spring dimensions.

Step 5 Consider the Door Lift

The door lift refers to the height the door needs to be lifted. Standard lift doors require standard extension springs. However, low headroom or high lift doors may require specialized springs.

Choosing the Right Spring Strength

Extension springs are color-coded to indicate their lifting capacity. Here’s a common color code chart:

• Brown: 60 lbs
• Orange: 70 lbs
• Yellow: 80 lbs
• White: 90 lbs
• Green: 100 lbs
• Tan: 110 lbs
• Blue: 120 lbs
• Gold: 130 lbs
• Red: 140 lbs
• Brown: 150 lbs

You’ll need two springs, one on each side of the door. Each spring should be rated for approximately half the weight of your door. For example, if your door weighs 160 lbs, you’ll need two 80 lbs (yellow) springs.

Final Solution

After carefully weighing your door, measuring your existing springs (if applicable), and consulting a spring identification chart, you should have a good idea of the correct extension spring size. Remember to choose springs that are rated for approximately half the weight of your door each. Always replace both springs at the same time, even if only one is broken, to ensure balanced operation and prevent premature failure of the other spring.

Safety Note

Working with garage door springs can be dangerous. Springs are under high tension and can cause serious injury if handled improperly. If you are not comfortable performing this task yourself, please contact a qualified garage door technician. MM Garage Door Repair Utah is here to help!

FAQs

Q: Can I use stronger springs than recommended?

A: No. Using stronger springs can put excessive strain on your garage door opener and other components, leading to premature failure.

Q: Can I use weaker springs than recommended?

A: No. Weaker springs will not properly counterbalance the weight of the door, causing it to be difficult to open and close and potentially damaging the opener.

Q: How often should I replace my garage door springs?

A: Garage door springs typically last for 5-7 years, depending on usage. It’s a good idea to inspect your springs regularly for signs of wear and tear, such as rust, cracks, or stretching.

Q: What if I can’t find the exact spring size I need?

A: In some cases, you may need to use a combination of springs to achieve the correct lifting capacity. Consult with a garage door professional for assistance.

We hope this guide has helped you understand how to determine the correct extension spring size for your garage door. Remember, safety is paramount when working with garage door springs. If you’re unsure about any step of the process, don’t hesitate to call the experts at MM Garage Door Repair Utah. We’re here to provide professional assistance and ensure your garage door operates safely and efficiently.

Ready to get your garage door springs sorted out? Don’t let a faulty spring leave you stranded! Call MM Garage Door Repair Utah today for expert advice and professional installation. Let us take the guesswork out of garage door repair and give you peace of mind. Call us now at 801-418-9217 or visit our website at mmgaragedoorrepair.com for a free quote. Let’s get your garage door working like new again!