One and a Half Car Garage Dimensions: Space-Saving Designs

Sophia Jul 01, 2026

When planning a garage, one of the first considerations is the size. For many homeowners, a one and a half car garage is an ideal compromise between space and cost. But what exactly are the dimensions of a one and a half car garage?

an overhead view of two car garage with measurements for the size and width in blue
an overhead view of two car garage with measurements for the size and width in blue

Before we delve into the specifics, let's clarify what a one and a half car garage means. It's essentially a garage that can comfortably accommodate two standard vehicles, typically cars or SUVs. The size can vary depending on the builder or the homeowner's specific needs, but there are some common dimensions that you'll find in many one and a half car garages.

Standard Garage Dimensions For 1, 2, 3, 4 Car Garages and Much More
Standard Garage Dimensions For 1, 2, 3, 4 Car Garages and Much More

Standard Dimensions of a One and a Half Car Garage

When discussing garage dimensions, it's important to consider both the depth and the width. The depth refers to the length from the garage door to the back wall, while the width is the side-to-side measurement.

the size and width of a car
the size and width of a car

For a one and a half car garage, the standard depth is around 20 to 24 feet. This depth allows for two cars to be parked in a tandem arrangement, with one car parked behind the other. The width is typically between 18 to 20 feet, providing enough space for two cars to fit side by side with some room to spare.

Depth Considerations

the two car garage shop plan is shown with measurements for each floor and one bedroom
the two car garage shop plan is shown with measurements for each floor and one bedroom

The depth of your garage is crucial for determining how many cars it can accommodate and how much storage space you'll have. If you plan to use your garage for parking only, a depth of 20 feet should suffice. However, if you want to use your garage for storage or workspace as well, you might want to consider a deeper garage.

For example, if you want to park two cars in tandem and still have room for a workbench or storage shelves, you might need a garage that's 24 feet deep. This extra depth can also come in handy if you have larger vehicles, like trucks or vans, that you need to park inside.

Width Considerations

Homeowner’s Guide to Standard Garage Sizes & Dimensions
Homeowner’s Guide to Standard Garage Sizes & Dimensions

The width of your garage is important for determining how easily you can park your cars. A width of 18 feet is typically sufficient for two standard cars, but if you have larger vehicles or want more room to maneuver, you might want to consider a wider garage.

However, it's important to note that wider garages can also be more expensive to build, and they might require additional permits or approvals from your local building department. Before you decide on the width of your garage, it's a good idea to check with your local building department to ensure that your plans are in compliance with local codes and regulations.

Additional Features to Consider

two car garage plans with the floor plan below and an overhead door on each side
two car garage plans with the floor plan below and an overhead door on each side

When planning a one and a half car garage, there are several additional features that you might want to consider. For example, you might want to include a garage door opener for convenience, or you might want to consider adding insulation and heating to make your garage more comfortable to use in all types of weather.

You might also want to consider adding storage solutions, like shelving or cabinets, to help you keep your garage organized. And if you plan to use your garage for work or hobbies, you might want to consider adding features like a workbench or utility sink.

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14x20 Garage Plans - 1 Car 1 Door Detached Garage Plans
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Modern Farmhouse Garage Plan | Adkins
an overhead view of two cars parked in a garage with measurements for the size and width
an overhead view of two cars parked in a garage with measurements for the size and width
two car garage with measurements for the size and width of the vehicle, including the top half
two car garage with measurements for the size and width of the vehicle, including the top half
an info sheet showing the different types of vehicles in this image, and how they are used
an info sheet showing the different types of vehicles in this image, and how they are used
24x28x10 Detached Garage in Raphine, VA (RJC20116) - Superior Buildings
24x28x10 Detached Garage in Raphine, VA (RJC20116) - Superior Buildings
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5 Garage Workshop Floor Plans For Woodworking & More
two garages in front of some trees and flowers
two garages in front of some trees and flowers
two garages with three cars in the same area
two garages with three cars in the same area
Plan 49178 | 2 Car Garage
Plan 49178 | 2 Car Garage
two car garage plans with measurements for the front and side of the house, including an attached
two car garage plans with measurements for the front and side of the house, including an attached
the garage plan is shown with measurements for each floor and two car garages in it
the garage plan is shown with measurements for each floor and two car garages in it
the floor plan for a two car garage with an attached living room and bedroom area
the floor plan for a two car garage with an attached living room and bedroom area
the garage plan is shown with measurements and details for each room in this house,
the garage plan is shown with measurements and details for each room in this house,
2-Car Detached Garage with Shop and Storage Space - 890 Sq Ft
2-Car Detached Garage with Shop and Storage Space - 890 Sq Ft
Traditional 2 Car Garage Plan - 720 Square Feet | Floor Plan #963-00620 | America's Best House Plans
Traditional 2 Car Garage Plan - 720 Square Feet | Floor Plan #963-00620 | America's Best House Plans
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Plan 41350 | Cottage, Craftsman 2 Car Garage
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RTM Homes & Cottages in Manitoba | Star Ready to Move Homes
a two car garage with an attached porch
a two car garage with an attached porch
the floor plan for a two car garage
the floor plan for a two car garage

Garage Door Size

When planning your garage, it's important to consider the size of the garage door. For a one and a half car garage, a standard garage door size is typically 16 feet wide and 7 feet high. However, if you have larger vehicles or want to be able to park in and out more easily, you might want to consider a larger garage door.

For example, you might want to consider a garage door that's 18 feet wide and 8 feet high, which would provide enough room for most vehicles to enter and exit with ease. However, it's important to note that larger garage doors can also be more expensive, so you'll need to weigh the benefits against the costs.

Garage Door Opener

A garage door opener can be a convenient feature to include in your one and a half car garage. It allows you to open and close your garage door with the push of a button, which can be especially helpful in bad weather or when your hands are full.

When choosing a garage door opener, you'll have several options to choose from, including chain-driven, belt-driven, and screw-driven models. You'll also need to decide whether you want a model with a single or double car garage door opener. A double car opener can be a good choice if you plan to use your garage for more than just parking.

Ultimately, the dimensions of a one and a half car garage can vary depending on your specific needs and preferences. However, by understanding the standard dimensions and considering the additional features that you might want to include, you can plan a garage that's perfect for your home and your lifestyle.