Did you know a garage can boost home value? Garages don’t just protect your vehicles and provide extra storage space—you can also use garages as functional spaces, like workshops. This flexibility makes garages desirable for prospective buyers.
The national average cost to build a garage is $28,000, with prices typically ranging from $10,000–$40,000 depending on the location, materials, and size.
If your house doesn’t have a garage and you want to add one, this guide helps break down costs and figures for different styles and features.
Garage Costs per Square Foot
Most garages will cost around $35–$60 per square foot to build on-site, varying by size, location, finishing, and features. For example, you can expect to pay more per square foot for a high-end, multipurpose garage that includes plumbing and electrical wiring than a general garage used only for cars and storage.
Cost to Build by Garage Size and Number of Cars
The most common garage size is 20 feet wide by 20 feet deep (20×20), which are the smallest dimensions that can comfortably fit two cars. Below is a breakdown of garage prices by size:
One-Car Garage
A single-car garage is generally 12×20 (240 square feet), with costs typically ranging between $10,000 and $27,000. While this size can be a useful addition, it doesn’t give you any space for extra storage. Keep this in mind when considering storage solutions.
Two-Car Garage
A two-car garage is a minimum of 20×20 (400 sq. ft.). More ideal dimensions, which can fit two different car styles, are at least 24 feet wide and 24 feet deep. The typical price range for a two-car garage is $20,000–$40,000.
Three-Car Garage
A three-car garage is a minimum of 30×20 (600 sq. ft.) and offers more storage space. The typical cost range of this garage style is $40,000–$57,000.
To calculate the best garage size for your needs, you have to consider the size of each vehicle you own, how much storage space you need, and how much space you need for accessibility. For example, SUVs, pickup trucks, and vehicles that have a wheelchair lift or other mobility aid will require more space for opening large doors.
Cost to Build a Garage by Type
As for the type of garage, attached and detached design prices will vary greatly. Deciding between the two depends on your personal preference and budget. Here’s an overview of each style as well as their pros and cons:
Attached
An attached garage costs between $10,000 and $40,000. Since this style shares wall space with the house, it can be cheaper to build than a detached garage using the same materials. The final cost, however, depends on interior finishing and other customization options.
Pros
Cons
Detached
A detached garage costs between $6,000 and $28,000 for a standard two-car size, which is around the price of an attached garage, excluding utilities and customizations. This style, however, has more flexibility to customize.
Pros
Cons
It’s worth noting that prefabricated detached metal garages are a more affordable option than stick-built garages since metal is cheaper than lumber and the labor costs much less.
Garage Materials: Cost Breakdown
The types of materials you choose greatly influence the labor and construction costs of your garage. Here is a look at the most common materials as well as a cost breakdown of associated construction necessities.
Wood (stick-built) garages are the most popular style, but they also require the most expensive materials. Metal garages, on the other hand, are more affordable, sustainable, and durable.
Foundation
Before building your garage, you must first have a foundation to support the structure. The most common types of garage foundation and their costs per square foot include:
- Concrete: $8–$15
- Gravel: $1.25–$1.50
- Asphalt: $7–$13
Framing
Other than metal, the three most common options for garage framing are lumber, concrete, and steel. Pricing for these materials ranges from $1–$5 per square foot, with an additional $4–$8 per square foot for labor.
Roofing
Adding a roof to a garage costs between $1,000 and $16,000, depending on the material, size, and installation. Below are common roofing materials and their costs per square foot:
- Asphalt Shingles: $1–$2 (not including the plywood under the shingles)
- Wood: $4–$7
- Metal: $6–$9
- Clay Tiles: $9–$14
- Concrete: $3–$5
It’s also important to consider the life span of each material. For example, asphalt shingles are the least expensive, but metal is more durable and has a longer life span.
Siding
Finishing the garage exterior, siding can cost $1,500–$9,000. You’ll want to choose a siding that’s durable, weatherproof, and within your budget. Types of common garage siding options and their cost per square foot include:
- Wood: $3–$10
- Vinyl: $1–$3
- Metal: $3–$8
- Brick: $11–$15
Garage Door Costs
Excluding installation, the average one-car garage door costs about $700 and can range anywhere between $400 and $1,200, depending on the style and customizations. A two-car garage door can cost up to $3,000.
| Garage Door Material | Cost |
|---|---|
| Steel | $250–$3,100 |
| Wood | $500–$1,200 |
| Vinyl | $850–$2,000 |
| Aluminum | $500–$1,400 |
Garage door installation costs range from $500 to $1,800. This also depends on the size, style, tracks, materials, and labor. Roll-up doors are included with prefab garages, which helps save on installation costs. Customizations such as adding garage door security features can increase the cost.
Cost of Garage Features and Factors
Once you have the basic construction of your new garage, you can factor in the costs of additional features. Here are common additions that can customize a garage to fit your needs:
Entry Doors
Adding an entry door creates an additional exit and safety feature for the garage. Entry door costs can range from $100–$2,500 each, from simplistic styles to those with high-security features. Since an entry door has to be cut into the wall of the house for an attached garage, this will be more expensive.
Windows
Windows are not essential for attached garages, but they help provide natural light and are usually desirable for detached garages. The average garage window costs $100–$1,000 each, including installation. Additional costs depend on size, style, and exterior additions.
Electricity
If you plan to have electrical outlets and lighting in the garage, you can expect electrical work to cost an additional $1,000–$2,500. Extending wiring to a detached garage will cost more.
Insulation
Insulation, an optional add-on for any type of garage, is something to consider if you plan to spend time in the garage. Types of insulation include spray foam, blown-in, and batting, with costs ranging from $1–$5 per square foot, or $400–$2,000 for the average two-car garage size.
Insulating a garage can also come in handy. Since metal conducts heat, insulation helps regulate the temperature.
Garage Door Openers
Accessibility features like manual and automatic garage door openers add convenience and value for prospective buyers. The average cost of garage door openers ranges from $100–$300, with installation an additional $120 to $200.
Building Permits
Before building a garage, it’s best to check the building
codes in your city. You will most likely need a permit to add permanent types of
building structures to your property, and they typically require an inspection after construction is finished. Permits can cost
$200–$1,500 depending on your location.
Either you or the contractor can apply for the building permit. If your contractor applies for it, they may charge you an additional fee.
Workshop Space
Many homeowners use their garages as workshop areas, especially detached garages. If you have this in mind, factor in essential upgrades such as plumbing, HVAC, and storage space. You can expect to pay at least $5,000 for these upgrades altogether.
Prefab vs. On-Site Garage Cost
Now, we’ll reveal a big cost-saving opportunity: prefab garages. These cost a lot less than garages built on-site and generally work just as well, depending on how you use the space.
Prefab Garage
A prefabricated or “prefab” garage is one where the critical parts are prebuilt in a factory and delivered to the customer. A prefab garage is always detached. The average cost of a prefab garage is $15,000, with costs ranging between $5,000 and $20,000. Many prefab garage providers offer assembly and installation, which can be done in less than a day.
Prefab garages take less time to build than on-site garages and are cheaper than hiring a contractor to build a garage from scratch. Although homeowners can purchase prefab garage kits as a DIY project, building it can be a complex and time-consuming process, and any mistakes can cost you more in the end.
Pros
Cons
On-Site Garage
If you decide to take the traditional route and build a garage from scratch on-site, the labor cost can be more than 50% of the total project cost. While the construction process is more expensive and takes much longer than that of a prefab, an experienced contractor can build a custom garage to meet your exact requirements.
Since building a garage from scratch requires design plans, you may also need to hire an architect for custom designs, like a drive-through garage. After completion, a garage built on-site typically provides more resale value than a prefab version.
Pros
Cons
Frequently Asked Questions
Is it cheaper to build or buy a garage?
Considering labor, materials, and features, it is cheaper to buy a garage, such as a prefab kit, than to build one. Prefab garage kits can cost as low as $6,500, nearly $22,000 less than the average cost to build one.
Are prefab metal garages worth it?
Yes, it’s worth having a metal garage if you’d like a quicker, sustainable, and more affordable option. Since this type of garage is prebuilt, you’ll spend less money building it than one from the ground up. Not only are metal garages equally durable to site-built versions, but they are also rot-resistant, fire-resistant, and low-maintenance.
Do garages increase a home’s value?
Yes, garages definitely increase a home’s value, where homeowners can recoup about 65 percent of the resale value. In fact, more than 70 percent of home buyers prefer a house with a garage. A detached garage is typically more valuable than an attached garage since it gives you the freedom to do more with the space, such as using it for a workshop.
Now that you have an idea of garage costs and options, the next step is deciding the best option within your budget. Our prefab metal garages start as low as $6,500 for a two-car garage and come with free delivery and installation. Customizing a garage has never been easier, and we’ll walk you through the process from start to finish.
