Cost to build a 3 car garage

There are different ways to build a garage which enables you to choose the cost of building a garage you can afford. Adding a garage to your house if do it yourself or hire someone helps you store your vehicles inside the home premise, giving them protection from the elements such as rain, snow and sun. You’ll need to consider many factors before getting started on building a garage so that you can have one ready for use.

Cost to build a 3 car garage

The national average cost to build a garage is $24,000. Garage costs depend on its siding material, foundation and finishes, like electricity and garage door style. A single-car, detached garage kit starts at around $7,250 while an attached three-car garage with a loft can cost $50,000.

Average Cost to Build a Garage

Average Cost$52
Highest Cost$70
Lowest Cost$35
*Costs per square foot

Garage Cost Per Square Foot

A two-car garage costs an average of $52 per square feet to build. Custom garage construction costs, like a slab foundation, security system, and livable loft space, mean you could pay between $35 and $90 per square foot.

Single-Car Garage Cost

Single-car garages come in a lot of different shapes and sizes each with their own price tag. Choose a slightly larger footprint for additional storage space.

12 by 24 feet$15,000
14 by 28 feet$20,400
*Costs calculated using $52 per square foot average and rounded to the nearest $100

2-Car Garage Cost

One of the largest cost factors for multi-car garages is the number of garage doors you need to install. Depending on your lot size and how you plan to access your cars, you can choose to park side-by-side or front-to-back, also called tandem.

24 by 24 feet$30,000
24 by 30 feet (tandem)$31,200
*Costs calculated using $52 per square foot average and rounded to the nearest $100

3-Car Garage Cost

Garages that accommodate three or more cars cost the most because they require the most square footage. They are great for families with multiple vehicles ranging from economical cars to recreational vehicles.

36 by 24 feet$44,900
30 by 40 feet$62,000
*Costs calculated using $52 per square foot average and rounded to the nearest $100

Detached Garage Cost

Detached garages range in price from $1,500 for a no-frills stainless steel kit that fits one car to $50,000 for a barn-like custom garage that fits three cars and an in-law suite. How much you pay depends on the size, functionality, materials and labor. Budget for the cost of a foundation as well as the cost of a driveway to your new garage.

Stainless steel garage kits with manual garage doors and no insulation are the most affordable and fastest to build. You can find these at outbuilding and shed retailers near you. On the other hand, detached garages with siding, trim and roofing that match your home will cost more.

Hire an electrician if you’re adding or updating electrical to your detached garage to accommodate automatic garage door openers, lighting or a security system. Hire a plumber to install wet features like a drain, hose or work-station sink.

Attached Garage Cost

Attaching a garage to your home costs an average of $26,000. However, you could pay anything from $10,000 to $43,000 depending on how many cars you’d like to accommodate and whether it includes livable space.

It costs less to run new electrical or plumbing to an attached garage, especially where those features connect with existing lines. For instance, if you want a garage with an apartment, choose a floor plan that allows new wet rooms to share walls with your existing laundry or bathroom.

You may also need to replace the door connecting your home to the garage with one that is fire-rated. Check local housing codes or talk to your garage contractor.

Garage Material Costs

To build a garage, you’ll need to start with the foundation. Budget for the cost of a concrete slab foundation, which averages $4 to $8 per square foot. Measure the length and width of your new garage foundation to create a rough project budget with the following costs per square foot:

Foundation Cost$4 – $8
Framing Cost$5 – $13
Siding Cost$2 – $50
Roofing Cost$1 – $10

Don’t forget to coordinate concrete installation with any plumbing, drainage or HVAC system needs. Hire a general contractor to complete your project successfully and on budget.

On top of the foundation you’ll either need a prefabricated garage kit or a custom wood frame to erect the walls and roof. From there, it’s time to install the garage door and any exterior doors and windows. Take a look at the following per-unit costs, including materials and labor, and add them to your project budget:

Garage Door$600 – $1,500
Exterior Door$450 – $700
Exterior Windows$100 – $700

If you opt for a finished garage, you’ll also need electrical to install a garage door opener, lighting and electric vehicle charging stations. Once optional plumbing and electrical are installed, it’s time for insulation, drywall, painting and features such as storage solutions.

Garage Door Opener$200 – $525
Lighting$80 – $900
Storage Solutions$500 – $10,000
Electric Vehicle Charging Station$1,000 – $2,300

Factors That Affect the Cost of Building a Garage

Several factors will affect the final cost of building a garage, from the size of your garage to labor costs to insulation and much more. To budget accurately for such a large home improvement project, it is essential to understand each factor’s cost.

Size of Garage

The cost of building a custom garage is typically determined by square footage. Most contractors charge approximately $35 to $70 per square foot for a standard garage. For instance, a single-car attached garage at approximately 240 to 380 square feet can range from $10,500 to $20,400. A double-car garage at approximately 440 to 620 square feet can range from $20,000 to $40,300. A three-car garage at approximately 620 to 820 square feet can range from $30,000 to $45,000.


Building a custom garage is a large home improvement project, and it can take multiple laborers to complete the project. Therefore, labor rates will comprise roughly 50% to 70% of the overall bill. The more you DIY, the more you can reduce labor costs.


For those who plan to utilize a garage beyond just parking a car, consider insulating it. Whether using it as a workspace or storing temperature-sensitive items, insulating your garage will help reduce rapid temperature swings. 

The insulation cost typically depends on the insulation type you choose. For instance, blown-in insulation ranges from $.5 to $1.5 per square foot. Batting insulation ranges from $1 to $2 per square foot. Spray-in insulation ranges from $1.5 to $4 per square foot.


Whether you are building a garage to park your car, store your belongings or both, it may be wise to install security features to ensure your item’s safety. Security features such as a garage security system can cost anywhere from $100 to $2,500. But for extra security, you may also want to invest in an automatic garage gate or door compatible with your garage security system. These can range from $200 to $4,000 in addition to the security system.


Some people prefer windows in a garage to add some natural light or match the home’s exterior. Of course, depending on the window type, size, placement and how many windows you’d like, the additional cost for windows in a garage is approximately $100 to $600 per window.


Building a garage is a large project requiring various materials for the foundation, the framing, the roofing, the wiring and the gutters. Therefore, the price of your garage will depend on which materials you choose for each element of the garage. On average, materials in total typically account for between 30% and 50% of the final cost. 

Number of Doors

Typically, the number of doors in your garage determines the square footage and installation cost. The more doors, the greater the cost. The cheapest option is usually a single garage door spanning the width of a garage entrance, followed by double-garage doors. A custom garage door will cost the most.

  • Single door: $600 to $1,500
  • Double door: $800 to $3,500
  • Custom door: Over $1,000

How much does it cost to build a 2 car garage yourself?

The average cost to build a two-car garage is $30,000, according to HomeAdvisor. This type of structure is typically built with wood framing and drywall. The cost can vary depending on its size, design and materials used.

Cost to Build A Garage

If you are considering building your own garage, there are several factors that can affect the price. In general, the larger the size of your garage, the more expensive it will be. Here are some common factors that affect your cost:

Size – The size of your garage will determine how much material you will need to buy and how long the project will take. Smaller garages may only require one sheet of 4×8 plywood while larger ones might require two or three sheets of plywood.

– The size of your garage will determine how much material you will need to buy and how long the project will take. Smaller garages may only require one sheet of 4×8 plywood while larger ones might require two or three sheets of plywood. Type – You may want a prefabricated kit from a home improvement store or hire someone to build it for you from scratch. Kits typically include all

How much does it cost to build a 2 car garage


A 2-car garage will cost you anywhere from $20,000 to $40,000 depending on the size of the structure, its features and your location.

The cost of building a garage depends largely on the type of material you choose and the size of the structure. The following are some examples:

Wood-frame buildings with metal roofs can be built for about $30 per square foot.

Concrete block or cinder block buildings can cost up to $60 per square foot.

If you want your new garage to have a concrete floor, add an extra $2 per square foot to both of these prices.

Painting is another major factor that adds to the overall cost of building a new garage. Expect to pay between $2 and $4 per square foot for painting services alone.

The cost to build a garage varies depending on the size, materials and complexity of the project. Building a garage from scratch can be expensive. However, you don’t have to spend thousands of dollars for a new garage when you consider these tips and strategies for building one on your own.

The average cost to build a two-car garage is $60,000, according to Remodeling magazine’s Cost vs. Value Report. This price includes the cost of design and permits but not labor or land costs. In addition, the report notes that most homeowners spend an average of $1,500 more than they expected on their project, which can increase its total cost by 25%.

Costs vary based on factors including location, size and complexity of design as well as the materials used in construction. For example, a basic 2-car detached garage without windows or insulation costs about $15 per square foot in most regions across the United States. A typical 2-car detached garage contains approximately 1,100 square feet of space but can range from 800 to 1,500 square feet depending on its design and other factors such as whether it’s attached or detached from another structure — such as a home — and how much insulation is included in each type of

The cost to build a garage is going to depend on a variety of factors, including the size and complexity of your project, as well as your location. The average cost of building a garage can range anywhere from $11,000 to $40,000.

In general, you can expect to pay about $10 per square foot for a two-car garage. For example, a 1,500 square foot two car garage would cost about $15,000 to build.

If you’re looking for a DIY project that will save you money and give you an opportunity to learn some new skills along the way, then building your own garage might be right up your alley.

If you plan on hiring contractors or subcontractors to build your garage for you then expect to pay at least $12 per square foot for a two-car garage and possibly more depending on where you live in the United States. If you need more than one car but only plan on getting one space then consider adding another bay onto your existing structure so that it’s easier to add another vehicle later down the line if needed without having to tear down the entire thing again.

How much does it cost to build a garage?

The average cost to build a garage is about $11,000. This price range will vary depending on the size and style of your garage. The most common type of garage built in the United States is a single-car garage with an attached carport. This type of project costs approximately $10,000 on average. The least expensive option is a detached single-car garage that costs around $6,500. A two-car garage with an attached carport runs at about $12,200 while a two-car garage with detached carports costs around $12,200 as well.

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