Three Common Garage Door Sizes for Car Owners

Evelyn Aug 08, 2026

When it comes to garage doors, size matters. The size of your garage door can significantly impact the aesthetic appeal, functionality, and safety of your space. If you're building a new garage or planning to replace an existing one, you might be wondering about the different garage door sizes available. This article explores three common garage door sizes, their features, and pros and cons to help you make an informed decision.

Standard Garage Dimensions for 1, 2, 3 and 4 Car Garages (Diagrams)
Standard Garage Dimensions for 1, 2, 3 and 4 Car Garages (Diagrams)

Garage doors come in various sizes, but they primarily differ in width and height. While the width is usually measured in feet, the height is typically denoted in inches. There are three standard sizes that cater to different vehicle types and garage dimensions: single (9x7 ft), double (16x7 ft), and triple (18x7 ft) car garage doors.

three cars are parked in an area with the measurements for each car and how to measure them
three cars are parked in an area with the measurements for each car and how to measure them

Single Car Garage Doors

Single car garage doors are the smallest and most popular choice for homeowners. They are ideal for accommodating one vehicle at a time and are perfect for narrow driveways or smaller homes.

the floor plan for a three car garage with an attached living room and kitchen area
the floor plan for a three car garage with an attached living room and kitchen area

Single car garage doors measure approximately 9 feet in width and 7 feet in height. This size allows for easy entry and exit of compact cars, small SUVs, and motorcycles. They are ergonomic, energy-efficient, and aesthetically pleasing. Plus, they require less space, making them easier to install and maintain.

Pros of Single Car Garage Doors

3 car garage size?
3 car garage size?
  • Cost-effective: Single car garage doors are the most affordable option due to their smaller size and simpler construction.
  • Space-saving: They are perfect for homes with limited space or narrow driveways, maximizing your outdoor living area.
  • Easy to install and maintain: Their smaller size makes installation faster and easier, and maintenance costs are lower compared to larger garage doors.

Cons of Single Car Garage Doors

  • Limited space: While they're great for one vehicle, they may be too small for larger vehicles, multiple cars, or homeowners with extensive storage needs.
  • Safety concerns: If you plan to park vehicles side by side or store multiples inside, you may need a larger garage door for better maneuverability and safety.
Simple 3 Car Garage with Storage
Simple 3 Car Garage with Storage

Double Car Garage Doors

Double car garage doors are larger and can accommodate two vehicles simultaneously. They are a popular choice among homeowners with multiple cars or those who need more storage space.

Double car garage doors measure approximately 16 feet in width and 7 feet in height. This size allows for easy entry and exit of sedans, SUVs, and even some vans. They provide ample space for parking and storage, making them an excellent choice for larger vehicles and families with multiple cars.

3 Car Garage Dimensions: What You Need To Know
3 Car Garage Dimensions: What You Need To Know

Pros of Double Car Garage Doors

  • Space for multiple vehicles: They can comfortably accommodate two cars side by side, providing better maneuverability and parking convenience.
  • Additional storage space: The extra width allows for more storage room, perfect for homeowners who need to stow away bulky items, tools, and lawn equipment.
  • Improved curb appeal: Larger garage doors, especially those with attractive designs, can significantly enhance the curb appeal of your home.
3-Car Garage Dimensions | Standard Sizes & More
3-Car Garage Dimensions | Standard Sizes & More
the floor plan for a three car garage
the floor plan for a three car garage
Traditional-Style Deep 3-Car Garage with Side Door
Traditional-Style Deep 3-Car Garage with Side Door
40x24 3-car Garage -- 960 Sq Ft -- PDF Floor Plan -- Instant Download -- Models 1D and 1H - Etsy
40x24 3-car Garage -- 960 Sq Ft -- PDF Floor Plan -- Instant Download -- Models 1D and 1H - Etsy
3 Car Garage Dimensions: Size, Layout, and Planning Guide - Jack Cooper
3 Car Garage Dimensions: Size, Layout, and Planning Guide - Jack Cooper
3 Car Garage Plan with Three Garage Doors - 44 Feet Wide X 26 Feet Deep - Detached Model
3 Car Garage Plan with Three Garage Doors - 44 Feet Wide X 26 Feet Deep - Detached Model
40x24 3-car Garage -- 960 Sq Ft -- PDF Floor Plan -- Instant Download -- Models 1E and 1I - Etsy
40x24 3-car Garage -- 960 Sq Ft -- PDF Floor Plan -- Instant Download -- Models 1E and 1I - Etsy
Craftsman-Style 3-Car Garage - 1170 Sq Ft
Craftsman-Style 3-Car Garage - 1170 Sq Ft
two cars are parked in front of the garage
two cars are parked in front of the garage
Standard Garage Dimensions for 1, 2, 3 and 4 Car Garages (Diagrams)
Standard Garage Dimensions for 1, 2, 3 and 4 Car Garages (Diagrams)
24x40 Garage Plans | 3 Car Garage Plans | 3 Doors
24x40 Garage Plans | 3 Car Garage Plans | 3 Doors
40x30 3-car Garage -- 1,200 Sq Ft -- PDF Floor Plan -- Instant Download -- Models 6P and 6T - Etsy
40x30 3-car Garage -- 1,200 Sq Ft -- PDF Floor Plan -- Instant Download -- Models 6P and 6T - Etsy
36x24 Garage Plans, 3 Car Detached Garage, Modern Farmhouse Design, Workshop Blueprint, Instant PDF Download - Etsy
36x24 Garage Plans, 3 Car Detached Garage, Modern Farmhouse Design, Workshop Blueprint, Instant PDF Download - Etsy
Triple Garage Design
Triple Garage Design
Charming 3-Car Garage Plan Ideas
Charming 3-Car Garage Plan Ideas
40x30 3-Car Garage -- 1,200 sq ft -- PDF Floor Plan -- Instant Download -- Models 6Q and 6U
40x30 3-Car Garage -- 1,200 sq ft -- PDF Floor Plan -- Instant Download -- Models 6Q and 6U
30x50x12 Garage in Harrisonburg, VA (RNB20156) - Superior Buildings
30x50x12 Garage in Harrisonburg, VA (RNB20156) - Superior Buildings
RV-Friendly Traditional 3-Car Oversized Garage with Office Space - 1900 Sq Ft
RV-Friendly Traditional 3-Car Oversized Garage with Office Space - 1900 Sq Ft
Plan 80953 | Traditional 3 Car Garage
Plan 80953 | Traditional 3 Car Garage

Cons of Double Car Garage Doors

  • Higher initial cost: Double car garage doors are more expensive due to their larger size and more complex construction.
  • Space requirements: They require more space, both in terms of width and height, and may not be suitable for smaller homes or narrow driveways.
  • Complex installation and maintenance: Due to their size, installation and maintenance can be more challenging and costly compared to single car garage doors.

Triple Car Garage Doors

Triple car garage doors are the largest and most spacious option, ideal for homeowners with multiple vehicles or those who require ample storage space. They are typically found in luxury homes, apartment complexes, and commercial buildings.

Triple car garage doors measure approximately 18 feet in width and 7 feet in height. This size allows for easy entry and exit of multiple cars, vans, and even recreational vehicles. They provide ample parking and storage space, making them perfect for large families, car enthusiasts, or businesses that need to accommodate multiple vehicles.

Pros of Triple Car Garage Doors

  • Ample parking space: They can comfortably accommodate up to three vehicles simultaneously, providing more parking convenience.
  • Extensive storage space: The extra width and height allow for plentiful storage room, suitable for homeowners with multiple cars, collectibles, or other bulky items.
  • Improved functionality: They offer exceptional functionality, as you can easily park, store, and organize your vehicles and belongings efficiently.

Cons of Triple Car Garage Doors

  • Highest cost: Triple car garage doors are the most expensive due to their larger size and complex construction.
  • Significant space requirements: They need substantial space, making them unsuitable for smaller homes or narrow driveways.
  • Complex installation and maintenance: Due to their size, installation and maintenance can be the most challenging and costly compared to smaller garage doors.

Ultimately, the choice of garage door size depends on your specific needs, vehicle types, budget, and available space. By understanding the different garage door sizes and their features, you can make an informed decision that caters to your unique requirements. Whether you opt for a single, double, or triple car garage door, prioritize quality, aesthetics, and functionality to enhance your home's curb appeal and security.