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How Do I Enlarge A Garage Door Opening?

Updated: Jul 23, 2023

car parked in home garage 2

Are you ready to upgrade your garage door opening? Enlarging a garage door opening can be an exciting project that allows for a large garage space and convenience in the home. It’s not as complicated as it may seem, but there are important steps to take when deciding how much larger of an opening you want.

In this blog post, we'll walk through all the necessary steps for enlarging a garage door opening – from measuring the existing size to removing the old garage door frame and installing new framing! With our help, you’ll have a larger entranceway in no time! So let's get started on learning how to enlarge your garage door opening today!

Measure the Existing Opening

Measuring the existing opening of your garage door

Measuring the existing opening of your entire garage door is an important step when it comes to repairing or replacing it. It’s essential to know the exact size of the opening in order to determine what type and size of door you need.

To measure common garage door sizes, start by measuring both the width and height of the opening. Make sure that you are taking accurate measurements as this will help ensure that you get a properly fitting garage door.

You can use a tape measure for this task or even a ruler if necessary. Be sure to double-check your measurements before moving on with any repairs or replacements.

When measuring, take into account any additional features such as windows, decorative trim, and hardware like hinges and handles that may affect how much space is available for a new garage door.

If there are any obstructions in place, make sure they are taken into consideration when calculating your measurements so that you don’t end up with an ill-fitting replacement door later on down the line.

In addition to measuring the width and height of your existing opening, be sure to also measure from floor level up until where you want your new garage door installed - this will give you an idea about how much headroom is needed for installation purposes too.

This measurement should include any additional items like weatherstripping which might add extra inches to its overall length once installed correctly.

Once all these measurements have been taken accurately, it is important to write them down somewhere safe so that they can be referred back to at any time during repair or for replacement work.

Having accurate numbers makes things easier when ordering parts or materials. Once measuring has been done, you can move on to removing the existing door and preparing for the installation of a new one.

Key Takeaway: Accurate measurements are essential when repairing or replacing a garage door. Take into account the width, height, and headroom of the existing opening as well as any obstructions or features like windows, trim, and hardware that may affect its size. Write down your measurements for easy reference during repairs or replacements.

Remove the Existing Door

Remove Garage Existing Door

Removing an existing garage door (no matter if it's a connected or detached garage door) can be a daunting task, but it's necessary if you're looking to enlarge your opening. Before beginning the process, make sure you have all the tools and materials needed for the job. You'll need a ladder, screwdriver, hammer, wrench set, and pliers.

First things first: disconnect any garage door opener cables or electrical wiring that is attached to the door. This is done by releasing tension on them with a wrench or pliers until they become loose enough to remove from their mounts. Once disconnected, carefully lower them down so as not to damage them in any way.

Next up is removing any trim or weatherstripping around the door frame itself. Use a screwdriver or pry bar to gently lift away these pieces without damaging either of them in the process; this will ensure they can be reused when installing your new door later on down the line.

Finally, use a hammer and chisel (or other appropriate tools) to break apart any mortar joints between bricks/blocks that may exist near where your old garage door was located. This will help create space for enlarging your opening size once everything else has been removed and successfully detached.

After the existing door has been removed, it's time to install the new framing that will provide a larger opening for your garage doors.

Install New Framing

Install New Framing

Installing new framing for your garage door opening is an important step in the process of replacing or repairing your existing door. It involves cutting and fitting new studs and headers into place, as well as adding insulation and drywall if necessary.

To begin, measure the existing opening to determine what size of framing you need. You may also want to consider whether you would like a garage door taller than before or if you would like to have the widest garage door possible.

Once you have determined this, cut the pieces of wood that will form the frame for your new door. Make sure to use a level when installing these pieces so that everything is even and secure.

Next, install any additional insulation needed around the frame to ensure it is properly sealed from outside elements such as wind and rain.

This can be done with foam board or fiberglass batting depending on what type of material was used in constructing your home’s walls originally. After this has been completed, attach drywall panels over the top of the insulation using screws or nails to hold them in place securely.

Finally, add trim around all sides of the frame where it meets up with other surfaces such as side room walls or ceilings so that there are no gaps between them once they are painted over later on down the line.

This will help create a more polished look while also providing extra protection against moisture seeping through any cracks which could lead to further damage if left unchecked.


In conclusion, enlarging a garage door opening is not an easy task and should be done by a professional. It requires careful measurements, removal of the existing door, and installation of new framing.

With the right tools and expertise, you can successfully enlarge your garage door opening to make it a larger door and more accommodating for larger vehicles.

Are you looking for a reliable and experienced service on how to enlarge garage door opening? Or planning to have a double door opening for your garage? Look no further than Aaron's Garage Door Company!

Our team of licensed, bonded, and insured technicians are experts in the field.

We guarantee our work for 120 days after completion so that you can rest assured knowing that your project is done right. Contact us today to learn more about how we can help with all of your garage door needs!

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