How to Choose the Right Garage Door Opener Size (Step-by-Step Guide)

garage door opener size matter


When it comes to outfitting our homes with modern conveniences, a garage door opener stands out as an essential addition. Gone are the days of manually heaving open heavy garage doors; instead, we now have the luxury of a garage door opener size tailored to our specific needs. However, with the lots of options available in the market, choosing the right one can be a challenging task.

Don’t worry, as we’re here to provide you with a practical and realistic guide on how to select the perfect garage door opener size for your home.

So, let’s delve into the world of garage door openers and discover the ideal size that fits your unique requirements.

Necessity of Choosing the Right Size Garage Door Opener

Choosing the right size garage door opener is essential because:

Smooth Operation

A properly sized opener ensures smooth and effortless opening and closing of your garage door. It eliminates the risk of jams or struggles.

Prevents Strain

Prevents Strain

An opener with insufficient power may strain and wear out quickly, leading to costly replacements.


The right size ensures that your garage door operates safely. It lessens the risk of accidents or injuries caused by a malfunctioning opener.

Energy Efficiency

An appropriately sized opener consumes the right amount of energy, helping you save on electricity bills.


A well-matched opener can handle the weight and size of your garage door, extending its lifespan and avoiding premature breakdowns.

Noise Reduction

The right size opener operates more quietly. It prevents unnecessary noise disturbances in your home or neighborhood.

Suitable for Door Type

Different garage door types require different opener sizes, ensuring compatibility and efficient performance.


Selecting the correct size means you don’t overspend on an opener with more power than you need.


A well-matched opener provides convenient access to your garage, making your daily routines smoother and hassle-free.

Long-Term Satisfaction

By choosing the right size, you’ll have a garage door opener that meets your needs which will provide you with peace of mind and satisfaction for years to come.

How to Determine the Ideal Garage Door Opener Size

How to Determine the Ideal Garage Door Opener Size

If you’re planning to upgrade your garage door opener, you may be wondering how to choose the right size garage door opener or “What size garage door opener do I need?” With lots of options available, it’s essential to find one that suits your requirements perfectly.

Here’s a step-by-step guide to help you determine garage door opener size.

Understand the Basics

The purpose of an electric garage door opener is to add convenience to our lives. Instead of manually opening the garage door, a simple push of a button saves us from getting out of the car in unfavorable weather conditions.

Importance of Balance

For the garage door opener to work effectively, it must be in perfect balance with the garage door’s weight. The torsion or extension spring system acts as a counterweight to the door’s deadweight, which can range from 90 to 350 pounds (40 to 160 kilos). A well-balanced garage door, when operated with the opener, should feel as light as 8 to 10 pounds (3 to 4 kilos), making it easy to handle with just one hand.

Checking for Balance

You can assess the balance of your garage door by disconnecting the electric door opener while the door is closed. Then, manually open the door about halfway, around 4 feet (1.2 meters) from the ground. If the door stays in that position without moving, it is balanced. If it falls shut or rapidly shoots open, it indicates an imbalance, which means the spring system requires attention. Contact a professional to rectify the issue for safety reasons.

Safety Concerns

Garage door openers have the power to lift heavy loads, up to 225 pounds. However, this force can be dangerous if something or someone is underneath the closing door. To avoid potential accidents, ensuring a balanced and properly functioning spring system is crucial.

Garage Door Terminology

Before delving into motor sizes, it’s essential to familiarize yourself with some garage door terminology. While many motors use horsepower to describe their force, electric garage door openers utilize two types of electrical current:

  • Alternating Current (AC
  • Direct Current (DC)

AC motors are described in terms of horsepower, while DC motors use Newton’s force for their measurement. These power types differ significantly, but they also share some similarities.

The most notable distinction is that AC-type motors maintain a constant speed, whereas DC motors start slowly, gradually increase in speed, and then reduce their speed before coming to a stop. Choosing between the two types may depend on personal preference, but it’s worth noting that DC motors tend to be slightly quieter. By understanding these key terminologies, you’ll be able to make informed decisions when selecting the right garage door opener for your needs.

Determine Motor Sizes

Determine Motor Sizes

Now that you have an understanding of the types of current used in garage door openers, let’s explore the different motor sizes available. Residential openers equipped with AC motors come in three sizes: ⅓, ½, and ¾ horsepower (HP). On the other hand, DC motors are available in either 500 or 700 newtons (N). Among residential garage door openers, the ½ HP or 500 N versions are the most popular choices.

For commercial and industrial purposes, garage door openers require more power since they handle larger and heavier doors. Motor sizes for these applications range from ½ HP to 4 or even 5 HP.

Now that you are familiar with the various sizes, you can determine the best fit for your specific needs based on the Standard Garage Door Opening Size. Regarding the garage door opener size for a single door which is typically measured at 9 x 7 ft. (2.7 x 2.1 m), a ½ HP or 500 N motor is sufficient for optimal performance.

However, for a standard double garage door opening size, which is commonly 16 x 7 ft. (4.9 x 2.1 m), or if you have a solid wood garage door, it is recommended to use a ¾ HP or 700 N motor. This ensures optimal performance for a garage door opener for a 2-car garage.

Consider Motor Lifespan

Garage door opener motors have varying lifespans, typically ranging from 7 to 15 years. Invest in a reliable, long-lasting opener, even if it means a slightly higher price tag.

Consider Drive Types

When opting for a garage door opener, consider the drive type that suits your needs. For single-car garage doors, you can opt for a belt, screw, or chain-driven opener without damaging the motor. Screw and belt-driven openers are quieter compared to chain openers, which can be a bit noisy. However, chain openers are easier to repair for the average homeowner. For double-car garage doors, it’s recommended to go with either screw-drive or chain-driven openers.

Choose an Installation Type

Decide if you prefer a self-installed opener or a professional installation. Self-installed openers come with rails that you assemble in three pieces. On the other hand, professional models have a one-piece rail. Both types of rails offer the same strength and durability, but correctly assembling the rail is crucial for the opener’s proper operation. 

Nowadays, most homes are pre-wired for openers, making it easier for DIY homeowners to connect the opener sensors and wall buttons. Consider your comfort level and expertise before making your installation decision.

Explore Accessories

When choosing your garage door opener, consider additional accessories such as garage door monitors, remote light switches, and more. Keep in mind that the availability and cost of these accessories can vary based on the type and model of the opener you choose. By measuring all these factors, you can make an informed decision and select the ideal garage door opener that best meets your requirements and budget.

Smart Garage Door Openers

As the world embraces smart home technology, Wi-Fi-connected garage door openers have gained popularity. These innovative openers allow you to control your garage door through your smartphone, providing convenient access even when you are away from home. You can assess the status of your garage door to see if it’s opened or closed, ensuring peace of mind and added security.

Prioritize Safety

Safety should always be a top priority when it comes to garage doors. Ensuring that your door remains properly balanced is crucial for your peace of mind and the well-being of those around you. To evaluate the state of your garage door’s balance, follow this simple procedure:

  • Pull on the red emergency release cord to disengage the door opener. This will let you operate the door manually.
  • With a slight bend in your knees to avoid strain, lift the door using the lift handle located on the bottom or second from the bottom section of the door.
  • Hold the door at a position approximately 4 feet (1.2 meters) from the ground. A balanced door should remain stable at this height without falling or rising on its own.
  • If the door remains stable in this position, it indicates that the door is properly balanced and in good condition.

Once you’ve completed the evaluation, re-engage the door opener by backing up the trolley that pulls the door. Then, reconnect the system by operating the door from your remote as usual.

If you’re having trouble determining the right size garage door opener for your Aurora, CO property, don’t worry – Garage Door Opener Aurora services by Pop’s Garage Door LLC have got you covered. As trusted professionals, we specialize in all aspects of garage door opener installation, repair, and replacement.

We take pride in our exceptional customer service. We offer a free consultation and a 100% guarantee on our work. Our expert technicians have the skills and knowledge to deliver precise and top-notch outcomes. Trust us to enhance the functionality and security of your garage with our top-of-the-line garage door opener services in Aurora.

Wrapping Up

In essence, selecting the right garage door opener size is a critical decision to confirm the smooth and efficient operation of your garage door. By considering the weight and type of your door, as well as the available motor sizes and drive types, you can make an informed choice that perfectly suits your needs. Remember, safety should always be a top concern when dealing with garage doors, and ensuring proper balance is essential for their proper functioning. 


What is a garage door opener size chart?

A garage door opener size chart is a guide that helps homeowners choose the right motor size for their garage door based on its weight and dimensions.

What is the garage door finished opening size?

The garage door finished opening size refers to the actual dimensions of the space in the garage where the door will be installed, including the frame and trim.

What is the garage door frame opening size?

The garage door frame opening size is the measurement of the rough opening in the garage wall where the door will be installed, without any trim or finishing added.

What is the standard single car garage door opening size?

The standard size of a single car garage door opening is typically 9 feet wide by 7 feet high.

How garage door opener buying guide helps?

The garage door opener buying guide helps people make informed decisions when purchasing a garage door opener by providing valuable information on types, motor power, safety features, remote operation, and installation considerations.

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