Understanding Standard Garage Door Sizes Rough Opening Size Chart

Understanding Standard Garage Door Sizes: A Rough Opening Size Chart

Understanding standard garage door sizes is crucial when planning a new garage or replacing an existing one. The size of the garage door opening, often referred to as the "rough opening," dictates the dimensions of the door itself. Determining the correct rough opening size ensures that the door fits seamlessly into the existing structure or new construction. This article provides a comprehensive guide to standard garage door sizes, including a handy rough opening size chart.

Standard Garage Door Sizes: A Quick Overview

Garage doors are typically available in standard widths of 8 feet, 9 feet, 10 feet, 12 feet, and 16 feet. The most common height for garage doors is 7 feet, although 8 feet and 9 feet tall doors are also available. While these are the most common sizes, there may be some variation depending on the manufacturer and specific model. When choosing a garage door size, it is important to consider the size of your vehicle, storage needs, and the overall aesthetic of your home.

Rough Opening Size Chart: Determining the Right Fit

The rough opening is the space in the wall where the garage door frame will be installed. It is crucial to have the correct rough opening size to accommodate the door and its components, such as the tracks and the motor. Here is a basic rough opening size chart for standard garage door sizes:

Standard Garage Door Size

Rough Opening Width

Rough Opening Height

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8 feet wide x 7 feet high | 8 feet 4 inches | 7 feet 4 inches

9 feet wide x 7 feet high | 9 feet 4 inches | 7 feet 4 inches

10 feet wide x 7 feet high | 10 feet 4 inches | 7 feet 4 inches

12 feet wide x 7 feet high | 12 feet 4 inches | 7 feet 4 inches

16 feet wide x 7 feet high | 16 feet 4 inches | 7 feet 4 inches

Note that these rough opening sizes are general guidelines and may vary slightly depending on the specific garage door model and manufacturer. Always consult the manufacturer's installation instructions for precise measurements.

Key Points for Rough Opening Size

It is vital to understand the following points when considering rough opening size:

1. Allow for Clearance and Hardware: The rough opening needs to accommodate not just the door itself but also the tracks, hardware, and any other necessary components. This is why the rough opening size is typically a few inches larger than the actual door size.

2. Consult a Professional: If in doubt, always consult a professional garage door installer. They can provide expert advice on the appropriate rough opening size for your specific needs and ensure that the installation is done correctly.

3. Consider Future Needs: Think about your future needs when determining the rough opening size. If you anticipate needing to store larger items in the future, consider opting for a wider or taller garage door.

4. Check Local Building Codes: Local building codes may impose certain restrictions on garage door size and rough opening dimensions. Always check the applicable codes before starting any construction.

5. Understand the Difference Between Door Size and Rough Opening: The rough opening is the space in the wall, while the actual door size is the measurement of the door itself. The door size is always smaller than the rough opening to accommodate the necessary hardware and clearance.