Understanding Common Garage Door Sizes - A1 Garage Door Service
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When purchasing a replacement garage door or adding one to a new home, it’s important to understand garage door sizes. Given the variety in dimension combinations, its difficult to label any one option as a standard garage door size, but some sizes are certainly more common than others.



– Garage Door Designs
– Single Garage Doors
– Double Garage Doors
– RV Doors
– Combination Garage Doors
– Custom Garage Doors
– Measuring Your Garage Door
– Ordering A New Garage Door



The garage door size you need depends on the size and layout of your garage itself. Blueprints for garages vary from small spaces designed for a single vehicle to larger, multiple-vehicle options.

If you bought an existing home, this decision had likely already been made for you. But, when building or remodeling a home, several factors must be considered, including:

  • Personal preference, style and needs based on number of vehicles.
  • Aesthetics and how the garage façade will affect the appearance of your home.
  • Practicality and the cost of maintaining multiple doors and opener system.


Table displaying common widths and heights of garage doors


A single-car wooden garage doorSingle Garage Door Sizes

Suited for smaller garage spaces with room for only one vehicle, single garage doors most commonly measure either 7 or 8 feet in height and 8, 9 or 10 feet in width. The doors are suited for a single standard-sized car, SUV, truck or van.


Double garage doorDouble Garage Door Sizes

Homes with multiple-vehicle garages will most commonly use a double-door option, measuring 7 or 8 feet in height and 16 or 18 feet in width. This option is also popular with those planning to use a portion of their garage as a workshop or storage space.


RV garage doorRV Garage Door Sizes

Large doors are available for those with specialized needs, such as parking several vehicles or an RV. These oversized garage doors tend to be 10, 12 or 14 feet in both height and width.


Garage with single and double doorsCombination Garage Door Sizes

As seen in the graphic above, many garages use a combination of either multiple single doors or a single and double door. While these garage door designs offer more space and flexibility, they also require maintenance and upkeep of at least two separate openers and garage door systems.


Door 48 Custom Garage doorCustom Garage Door Sizes

If you’re having trouble finding the right pre-fabricated door to meet your needs, Door 48 can assist with the design and creation of custom wood and steel garage doors. Visit the Door 48 website or call 844-568-0114 for more information.




If you’re considering purchasing a new garage door, we’re happy to visit and measure your door to ensure you’re looking at the right options. But, if you’re the do-it-yourself type, here are step-by-step instructions for measuring your garage door and ensuring your garage can accommodate an opener and the door in both the open and closed positions.

Diagram showing garage measurements1. Measure the width and height of the door opening – called the “rough opening” – to the closest inch. This will be approximately the same size as your door.

2. Measure the space to the left and right of the opening – called the “sideroom.” Most vertical track systems require 3.75 inches on each side. Some systems require even more space, at 5.5 inches.

3. Measure the distance between the top of the opening and the ceiling – called the “headroom.” Standard systems require 12 inches of head room, and most openers require an additional 3 inches of clearance.

4. Measure the distance from the garage door opening to the back wall of the garage – called the “backroom.” You will need backroom equal to the door height plus 18 inches, possibly more based on opener installation.



Once you’ve determined your garage door size and are ready to move forward with purchasing a new door, we’ll be here to help. Call 844-214-2724, and a member of our team will be available to assist.

Please be aware, though, that as of summer 2021, supply chain issues such as material availability, labor shortages and shipping delays continue to affect product availability and installation timelines. Even common-sized garage doors may require special ordering. Our team is doing everything we can to ensure you receive the best product in a timely manner, but we ask for and appreciate your continued patience.

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