Rough Opening Garage Door Sizes Chart and Important Considerations: Ultimate Guide

Are you planning to install a new garage door but unsure about the rough opening sizes? Look no further! This comprehensive guide provides you with a detailed rough opening garage door sizes chart and essential information to help you make the right choice for your garage.

Rough Opening Garage Door Sizes Chart

Understanding Rough Opening Garage Door Sizes Chart

When it comes to selecting a garage door, understanding the rough opening sizes is crucial for a seamless installation process. The rough opening refers to the framed opening in which the garage door will be installed. Here’s what you need to know:

Standard Garage Door Sizes

  • Single Car Garage: The standard rough opening width for a single car garage door is typically 8 feet, while the height ranges from 7 to 8 feet.
  • Double Car Garage: For a double car garage, the rough opening width is usually 16 feet, with a height of 7 to 8 feet.

Common Variations

  • Taller Vehicles: If you have taller vehicles such as trucks or SUVs, consider opting for a garage door with a higher opening height, such as 8 or 9 feet.
  • Oversized Vehicles: For oversized vehicles or RVs, you may need to customize the rough opening size to accommodate their height and width.
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Rough Opening Garage Door Sizes Chart

Here’s a rough opening garage door sizes chart to help you determine the appropriate dimensions for your garage:

Garage TypeWidth (Feet)Height (Feet)
Single Car Garage87-8
Double Car Garage167-8
Taller Vehicles8-108-9
Oversized VehiclesCustomCustom

Factors to Consider


Ensure that there is sufficient headroom in your garage to accommodate the chosen door size. The headroom refers to the space between the top of the door opening and the ceiling.


Sideroom is the space on either side of the garage door opening. Make sure there is enough sideroom to install the tracks and operate the door smoothly.


Backroom is the space required for the garage door to open fully without obstruction. Measure the distance from the door opening to the back wall of the garage to ensure adequate backroom clearance.

Read too: Why Your Liftmaster Garage Door Won’t Stay Closed and How to Fix It? Troubleshooting Tips

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Tips for Accurate Measurement

  • Use a tape measure to measure the width and height of the rough opening accurately.
  • Take measurements at multiple points to account for any irregularities in the opening.
  • Consult a professional installer for precise measurements and recommendations based on your specific garage layout.


Choosing the right size for your garage door is essential for a successful installation and optimal functionality. Refer to the rough opening garage door sizes chart and consider important factors such as headroom, sideroom, and backroom clearance to ensure the perfect fit for your garage.


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