How Do I Know What Garage Door Spring To Buy?

Wondering, “How Do I Know What Garage Door Spring To Buy?” If your garage door has ever stopped working, you probably understand that choosing the right spring is crucial to fixing it. 

It might seem a little scary at first, but in this blog, we’ll guide you through the simple steps to make it as easy as unlocking your front door. 

So, let’s begin by making this process less complicated and assisting you in finding the ideal garage door spring for your needs.

What are the Garage Door Springs?

Garage door springs are super important. They’re the real muscle behind your garage door, doing the heavy lifting to make it go up and down.

While people often think the garage door opener is the star of the show, it’s more like the director. It starts and controls the door’s movement, but the springs are the true heroes that do the heavy lifting.

In simple terms, without these springs, your garage door opener would be pretty useless. So, what exactly are garage door springs? They’re long coils of metal, and they come in two main types: Torsion Springs and Extension Springs.

Momentum Garage Door repair service
Momentum Garage Door repair service

Types of Garage Door Springs

There are two main types of garage door springs:

Torsion Springs

These are the most common ones, and you can find them above your garage door. Torsion springs are made of strong materials like beryllium copper, titanium, carbon, and stainless steel. They use their energy-storing ability to lift and lower your garage door.

Knowing what kind of spring your garage door has is as simple as finding where they are placed. In most cases, it’s torsion springs that do the job, and they’re right above the door opening.

How Do Torsion Springs Work?

Torsion springs are put up above the garage door and attached to a metal rod called the shaft. These springs do a neat trick – they gather and save energy when they coil and uncoil.

Here’s the magic: Torsion springs wind and unwind as you open and close the door. This winding and unwinding give them the power to lighten the load on the garage door opener. As a result, the door can move up and down easily.

However, it’s important to remember that even though it sounds simple, working on torsion springs can be very risky. That’s why it’s a good idea to have a professional garage door expert handle any repairs or replacements involving these springs. Your safety is the top priority.

Extension Springs

If you can’t spot a long, horizontal spring above your garage door, you probably have extension springs. Look for these springs running sideways a few inches from the garage door track.

Extension springs are lightweight and long. They’re placed horizontally on each side of your garage door.

As the name suggests, they work by stretching out when the garage door closes. This stretching action stores energy, which is later released to open the door.

How Do Extension Springs Work?

Extension springs connect to a system involving cables and pulleys, all attached to the bottom of the door. When your garage door opens with extension springs, the weight of the door shifts from the tracks to these springs. This increases tension and controls how fast the door lowers.

As you open the door, most of the weight is carried by the horizontal tracks, allowing the door to stay open without extra help.

However, like torsion springs, extension springs are under a lot of tension. If you mess with them the wrong way, it can lead to serious injuries. So, be cautious and consider professional help if needed.

Do you need a top-notch service on garage door opener installation in Tampa? Choose Momentum Garage Door.

How Do I Know What Garage Door Spring To Buy?

Do I Know What Garage Door Spring To Buy
Do I Know What Garage Door Spring To Buy

Now that you know how garage doors work, you can recognize when they’re not working right and need a new spring.

If you’re planning to replace your garage door spring, getting the right extension or torsion spring is super important.

So, how do I know what garage door springs to get? For both extension and torsion springs, it’s essential to make sure the springs can support your garage door’s weight.

This keeps your door in balance, and with proper maintenance, your springs will last longer.

The good news is this guide has all the info regarding garage door springs and what size to buy.

The below steps break down the process into four easy-to-follow steps to help you figure out which garage door spring to buy. It’s as simple as counting 1…2…3!

How to Measure Torsion Springs

So, how to know what size of garage door springs to buy? To pick the right torsion spring for your garage door, you need to measure a few things: the wire diameter, inside diameter, and length of the spring.

Here’s how to do it:

Measure the Wire Diameter:

  • Count 20 coils on your broken spring.
  • Use a measuring tape to measure from the start to the 20th coil.
  • Divide this measurement by 20 to find the diameter.
  • The diameter is usually around 5 inches, but it must be precise. Even a tiny difference can lead to the wrong spring.

Measure the Inside Diameter:

  • Check the winding cone or stationary cone attached to the spring.
  • Look for a label like “p-200” or a traditional measurement like “1 ½”. This tells you the diameter.

Find the Overall Length:

  • Remove the spring from the garage door system.
  • Measure it from end to end with a tape measure.
  • Precise measurements are important, but a slight difference is okay. More than ¾ of an inch off, though, might mean the wrong spring size.

Determine the Wind Direction:

  • Look down at the spring. Is the coil going counterclockwise? That’s a left-hand wind.
  • If it’s running clockwise, you need a right-hand wind spring.

How to Measure Extension Springs

So, how do I know what garage door extension spring to buy? For that, figuring out the right size for an extension spring is necessary. It is easier compared to a torsion spring. You just need to know two things: the spring’s length and the weight of your garage door.

Here’s how to do it:

Measure the Spring’s Length:

  • Close your garage door.
  • Use a measuring tape to measure the extension spring from end to end.
  • If you have a standard 7-foot door, you’ll likely need a 25-inch spring.

Determine Your Garage Door’s Weight:

  • Turn off the power to the garage door opener.
  • Disconnect the operator’s arm from the garage door.
  • Unhook the pin from the operator.
  • Remove both extension springs.
  • Carefully lower the garage door to the ground.
  • Slide a scale under the middle of the door and take multiple readings to find the weight.

Recording the right weight is crucial because using a spring that’s too weak for a heavy door can lead to damage and potential injuries. For instance, a 110-pound spring on a 150-pound garage door will stretch too much and eventually snap, which can be dangerous.

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Identifying the Color-Code

Garage door springs come in different colors, and these colors have a special meaning. They’re like a secret code that tells you important things about the springs. These color codes were made by DASMA to make it easy for everyone to understand these details.

To understand what the color means, first, figure out the type of spring you have. Once you know that, you can look up the standards that match that spring to get all the info you need.

Torsion Spring Color Codes

The way torsion springs are color-coded is quite different from extension springs. Torsion springs have two colors, and each color has a special meaning.

The first color on the spring tells you which way it winds – either left or right. Red means it’s a right-wound spring, which goes on the left side of the garage door. Black means it’s a left-wound spring, and it’s meant for the right side of the door.

The second color represents the wire gauge or thickness of the spring wire. Here’s how the colors work:

  • Orange: For wires measuring .120, .192, .273, .363, or .485 inches
  • Light Blue: For wires measuring .125, .200, .283, .375, or .490 inches
  • Yellow: For wires measuring .135, .207, .289, .394, or .500 inches
  • White: For wires measuring .139, .218, .295, .406, or .531 inches
  • Red: For wires measuring .143, .225, .297, .422, or .563 inches
  • Brown: For wires measuring .148, .234, .307, .431, or .625 inches
  • Tan: For wires measuring .156, .238, .313, or .438 inches
  • Green: For wires measuring .162, .244, .319, or .453 inches
  • Gold: For wires measuring .177, .250, .331, or .462 inches
  • Purple: For wires measuring .182, .257, or .594 inches
  • Blue: For wires measuring .188, .263, .344, or .469 inches

Extension Spring Color Codes

The colors on extension springs are all about the weight they can handle. Each color stands for a specific weight range. Here’s how it works:

  • White: For doors weighing 10, 110, or 210 pounds
  • Green: For doors weighing 20, 120, or 220 pounds
  • Yellow: For doors weighing 30, 130, or 230 pounds
  • Blue: For doors weighing 40, 140, or 240 pounds
  • Red: For doors weighing 50, 150, or 250 pounds
  • Brown: For doors weighing 60, 160, or 260 pounds
  • Orange: For doors weighing 70, 170, or 270 pounds
  • Gold: For doors weighing 80, 180, or 280 pounds
  • Light Blue: For doors weighing 90, 190, or 290 pounds
  • Tan: For doors weighing 100, 200, or 300 pounds

Which Garage Door Spring Is Best?

Which Garage Door Spring Is Best
Which Garage Door Spring Is Best

So, how to know what garage door spring to get? Extension springs used to be more common, but over time, torsion springs have become the preferred choice. These extension springs are only used for specific situations, like when there’s limited space in the garage.

Why are torsion springs so popular? Well, they tend to be a better investment. They’re more durable and last longer, up to 20,000 cycles, compared to extension springs that last about 10,000.

Torsion springs also make the garage door operate more smoothly. Extension springs can sometimes make the door jerk or jolt when opening, which can cause balance issues.

Extension spring systems have more parts, which means more maintenance and costly repairs. Torsion springs are gentler on the garage door opener, making it last longer. So, even though they may cost a bit more upfront, they’re a smart choice in the long run.

Call a Professional

If your garage door springs need fixing, choose Momentum Garage Door Service. We help with garage door springs for homes and businesses. Our skilled team can replace them quickly so your garage door works smoothly and safely.

We offer different services for spring replacement. We can fix both torsion and extension springs, adjust the tension, and check your entire garage door system.

We take your garage door’s safety seriously, and our work comes with a good warranty. If you need spring replacement, rely on Momentum Garage Door for high-quality service. Contact us today for assistance or more information.

Wrapping Up

To sum it up, picking the correct garage door spring is super important for your garage door to work smoothly and safely.

Whether it’s a torsion or extension spring, knowing the type, size, and color code is a must. Be sure to measure correctly and think about how heavy your garage door is.

So, when you wonder, “How Do I Know What Garage Door Spring To Buy?” – you’ll be well-informed and able to make the right choice for your garage.


How do I know which garage door springs to get? / What kind of spring does my garage door need?

To figure out which garage door springs you need, think about your door’s type, size, and weight, and decide between torsion or extension springs.

Can I replace my own garage door spring?

Yes, you can replace your own garage door spring, but it’s often safer to have a professional do it.

How do I choose a replacement garage door spring?

To pick a new garage door spring, measure its size, understand your door type, and think about how heavy your door is. Then, choose between torsion or extension springs.

Can you use a stronger spring for the garage door?

You can use a stronger spring for the garage door, but it must be the right strength for your door’s weight to keep it balanced and safe.

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