How To Measure a Garage Door?


Measuring your existing garage door is an important part of buying a new garage door and the subsequent installation. Homeowners need to determine its width and height before ordering one. The opening width is the distance from the front edge of the portal to the rear edge.

The height should be measured from the floor to the top of the door’s finished opening. Generally, the height needs to be measured in feet but if needed then converted to inches. In the case of a New Garage Door, make sure that the measurements are exact.

What To Measure Before Buying A New Garage Door?

It is best to measure the existing garage door from several points before buying a new one. You should also measure the side room, which is the space on both sides of the opening. This is the area where the tracks of the garage door will be installed.

The size of the track will be vary depending on the type of garage door in question. However, your measurement should be accurate to within a few inches.

In order to measure the width, you must measure the entire horizontal length of the garage door from left to right. This is done from the inside reveal to the outside reveal. Make note of any irregularities that you might find during the process.

Once you know the height and width, it’s possible to calculate the size of the garage door. Just remember to take measurements of the height from the floor to the top of the ceiling of the garage.

In addition, it might be worth measuring the side room, which is the space on either side of the opening. This is where the tracks of the garage door will be installed.

If the door will be mounted on the wall, the side-room measurement should be within a few inches of accuracy. It is important to take these measurements carefully since they must be accurate to prevent a faulty installation.

Knowing Your Headroom Requirements

You should also measure the height of the opening in inches. It would help to have at least five inches of headroom on both sides of the garage door. Moreover, you should measure the height from the ceiling to the top of the door.

It is important to take measurements for your garage door in every aspect. Ensure that the door will fit properly.

Inspect the opening for irregularities and make note of them. Then, measure the height from the floor to the top of the finished opening. If the height is too low, the door should be removed. The top of the garage should at least three inches above the floor.

Measuring Roller Shutter Garage Doors

Measuring Roller Shutter Garage Doors can be very simple. You should measure the opening from floor to ceiling, starting at the highest point. Then from the lintel to the underside of the opening. Once you have the measurement, you can choose a suitable opener.

It is important to keep the width and height of the garage door opening in mind. Then, you should make sure that it is the right size for your garage.

Measure the height and width of the finished opening. It is best to measure from top to bottom of the finished opening. However, if you don’t have a finished floor, you can cut the floor to fit the garage door.

The height is the distance from the floor to the top of the garage door. To measure the height of a roller shutter, you can use a tape measure. This will help you get the correct measurement for the door.

The width and height measurements are taken from the inside of the garage, so you should take measurements from the top to bottom. This is to ensure that the opening is level. If there are no restrictions, use the largest structural opening width for your garage door.

Once you’ve calculated the width and height, you can then determine the overall width of the garage door. You don’t want the width of the garage to be larger than the width of the opening.

Final Word

Measuring the size of your garage door can be important for many reasons, one of which is to replace It. You will always want to make sure to buy the right size garage door, which means that it fits the space perfectly.

Secondly, if you want to replace the existing garage door with a new one measuring the old one will help you find the right new one.

Fortunately, as we’ve examined measuring a garage door isn’t challenging. All you need is a tape measure. However, you might want another pair of hands to help you make it easier.


Author Bio: Ran Kroynish is an experienced handyman who’s been working for Elite Garage Door & Gate Repair for 10 years. When he’s not fixing garage doors, he likes to share his repair ideas and knowledge with others.

Sandy Jensen
Sandy Jensen, a celebrated writer in the home and garden niche, boasts over 12 years of hands-on experience. Her educational background includes a Bachelor’s in Landscape Architecture from Cornell University. Before joining our team in 2016, she worked as a landscape designer, combining her love for nature and design. Sandy's expertise shines through her articles, offering readers practical and aesthetically pleasing gardening tips. Off the clock, she enjoys hiking and nature photography, further nurturing her connection with the outdoors.

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