Garage Door Opener Horsepower: A Complete Guide

Your garage door opener may not be something that you think about on a daily basis—that is, until it starts to act up or needs replacing. If you're on the hunt for a new garage door opener and want to ensure that you choose the correct power, you'll need to consider the size of your garage door, the weight, the type, and how often you use your garage. This guide will help you choose the right horsepower for your garage door opener.

Main Types of Garage Door Openers

There are six main types of garage door openers, including the following:

1. Chain drive garage door openers

2. Belt-driven garage door openers

3. Wall-mounted garage door openers

4. Screw drive garage door openers

5. Direct drive garage door openers

6. Smart garage door openers

1. Chain Drive Garage Door Openers

As the most common type of garage door opener, chain drive openers use a metal chain to lift and close the garage door. Akin to a bicycle chain, these garage door openers crank a chain via a pulley system as the operating mechanism.

2. Belt-Driven Garage Door Openers

In a belt-driven garage door opener, you'll find a similar mechanism as the chain drive opener—only, the belt drive opener uses a rubber, polyurethane, or fiberglass belt to operate the garage door. Without the chains in your chain-drive opener, you’ll find this mechanism is quieter. 

3. Wall-Mounted Garage Door Openers

A garage that doesn't have enough space on the ceiling to lift and shut the garage door might need a wall-mounted, or jackshift garage door opener. These garage door openers operate from the wall to increase overhead space for vehicles in your garage. As with the chain drive and belt-driven garage door openers, wall-mounted openers use a pulley system.

4. Screw Drive Garage Door Openers

Unlike the other garage door openers so far on this list, a screw drive garage door opener operates using a screw-like rotation rather than a pulley system. Since the door opener operates through a rotation system, this type of garage door opener tends to be more powerful yet compact. 

5. Direct Drive Garage Door Openers

Direct drive garage door openers are one of the quietest types of garage door openers available. Like a chain drive or belt-driven opener, direct drive openers have a chain or belt system. However, this chain or belt does not move with a direct drive garage door opener. Instead, the motor directly moves across the chain or belt to open the door.

6. Smart Garage Door Openers

Some homeowners want all of the specs that come with a garage door opener. In this case, a smart garage door opener may be the best option. These garage door openers can come in any of the aforementioned types. But you’ll find your smart garage door opener has extra tech to help you monitor your garage door, open and close it with the touch of your smartphone, and other bells and whistles. 

Garage Door Opener Horsepower Options

When shopping for the right garage door opener for your garage, you will typically see three horsepower (HP) options for your garage door opener’s motor. The horsepower that you choose can make all the difference in having a garage door opener suitable for your garage door. Here's a breakdown of each motor's horsepower:

• 1/3 HP: If you're on a tight budget, you've chosen a lightweight material like aluminum for your garage door, and you have a single-car garage, then a 1/3 horsepower may work best for your home. 

• 1/2 HP: For a typical two-car garage, your door is better off with a stronger, 1/2-horsepower garage door opener. 

• 3/4 HP: If you have a three-car garage, or a very heavyweight garage door for your two-car garage, then your safest option is to go for a 3/4-horsepower motor.

Determining Garage Opener Horsepower

While you can look at the horsepower alone to help you get an estimate for how powerful of a garage door opener you need, you'll also want to factor in several other elements to make sure that you choose the right garage door opener strength.

Garage Door Size

A small, one-car garage will likely only need a 1/3 HP motor, while a standard, two-car garage door will need a 1/2 HP motor. Larger doors, like ones for a three-car garage, a workshop, or larger will need a 3/4 HP motor.

Garage Door Weight

The size of your garage door isn't the only factor in determining how strong your garage door opener needs to be. You also need to consider the material of your garage door, as different materials have different weights. 

An aluminum garage door is one of the most lightweight materials that you can choose for a garage door. Steel garage doors also are lightweight and therefore require less horsepower. 

Meanwhile, as stunning as wood garage doors are for adding that extra bit of curb appeal to your home, these garage doors weigh the most and may require a stronger motor—even if you have a one-car garage. 

Additionally, if you’ve insulated your garage door, this can increase the weight and bulkiness of the door and require you to upgrade the strength of your garage door opener. 

Garage Opener life span

Buying a garage door opener that's more affordable and has a weaker motor could save you money upfront, but you'll also want to consider the lifespan of your garage door opener when factoring in overall costs. 

What Happens if the Garage Door Opener Is Too Powerful?

A more powerful motor can last longer for heavier doors. At the same time, a motor that is too powerful for a weaker material like aluminum can actually shorten the lifespan of your garage door, even if the motor lasts longer. This is because a garage door opener with too much power can accidentally lift your lightweight garage door too high, causing it to break. 

What Happens if the Garage Door Opener Is Too Weak?

If your garage door is too heavy for the garage opener, several things can happen, such as the following:

• Overloaded springs lead to a jam

• Springs become damaged 

• The tracks break or bend

• Hardware loosens

An imbalanced garage door can make it appear to not have enough power and eventually lead to a jammed door that won’t budge. Always inspect the parts of your garage door before upgrading your garage door opener to rule out any issues with the spring, tracks, or cables. Sometimes, replacing the garage door spring can solve a garage door that’s on the fritz. If your garage door is out of alignment, no new and improved garage door opener will fix the problem. 

Additional Factors to Consider When Buying  a Garage Door Opener

Choosing the right garage door opener for your home boils down to knowing what to look for as you shop around. Here are several considerations to have on hand as you make your decision:

Budget

While a 1/2 HP garage door opener may be the ideal strength for your particular garage door, budgetary restrictions can impact your options. On top of the garage door opener itself, the average cost to install a garage door opener is between $225 and $550. But you don't always have to choose the strongest garage door opener to do the job. 

If you decide to go for a 1/3 HP motor and have a two-car garage, you should still be able to use this motor—it just might have a much shorter lifespan and need replacing sooner than a 1/2 HP motor.

Garage Door Noise

Depending on your garage’s location, you may wish to choose a quiet garage door opener so that it doesn’t disturb you or your family members while they're sleeping after a late-night run to the store or an early morning out to the office.

Frequency of Use

Your garage door opener’s lifespan can change based on how frequently you use your garage door. For example, if your neighbor has the exact same garage door, size, and door opener as you but often leaves the house, while you work from home, then you could get away with a garage door opener with a lower horsepower without needing to replace it as quickly.

Signs It’s Time to Replace Your Garage Door Opener

Knowing when to replace your garage door opener is key to making the most out of your current garage opener all while staying up to date on your garage door maintenance. Here are several signs that it's time to hire a garage door opener pro to replace your opener:

• The door moves slowly up and down.

• You hear your garage door opener making new and unusual sounds.

• Instead of smoothly opening and closing, your garage door randomly stops and reverses.

• You can't get the garage door to operate. 

• The garage door opener visibly vibrates. 

• Your garage door opener is approaching the 10-year mark. Garage door openers last for 10 to 15 years on average.

Garage doors are heavy, and the spring on your door can cause serious or even fatal injuries. If your old garage door opener needs replacing, you’ll want to work with a local garage door opener repair specialist to safely realign the garage door or opener.