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How Much Does It Cost to Build a Garage?

$35 - $70
cost to build a garage per square foot
$19,500 - $35,000
average 2-car garage cost
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Key Takeaways

Key PointDetails
Cost Per Square Foot Installed$35 – $70
Average Cost to Build a 2-Car Garage$19,500 – $35,000
National Average Cost$24,000
Minimum Cost$7,500
Maximum Cost$43,500

Building a garage can provide valuable storage space and protect your vehicles from the elements. Understanding the costs involved can help you plan your garage construction project effectively.

Cost to Build a Garage

The cost to build a garage varies based on the size and type of garage. Below is a breakdown of average costs:

Cost to Build a Garage by Size

Garage SizeSquare FeetAverage Cost1 Car2 Cars3 Cars4 Cars
12’ x 24’288$14,100
14’ x 28’392$19,200
20’ x 20’400$19,600
24’ x 24’576$28,200
36’ x 24’864$42,300

Cost to Build a Garage Per Square Foot

The cost to build a garage per square foot can vary based on the materials and construction methods used.

| National Average Cost | $23,900 |
| Minimum Cost | $7,500 |
| Maximum Cost | $42,700 |
| Average Range | $19,600 – $28,200 |

Cost to Build Attached or Detached Garage

The cost to build an attached garage can differ from that of a detached garage. Attached garages are often less expensive because they share one or more walls with the house.

Attached Garage Cost

Building an attached garage can cost between $35 and $60 per square foot. The total cost can range from $15,000 to $30,000 for a standard two-car garage.

Detached Garage Cost

Detached garages typically cost between $40 and $70 per square foot. The total cost can range from $20,000 to $50,000 for a standard two-car garage.

Garage with Apartment Cost

Adding an apartment above the garage can significantly increase the cost. The cost to build a garage with an apartment can range from $60,000 to $150,000, depending on the size and finishes.

Site-Built vs. Prefab Garage Cost

Prefabricated garages are typically less expensive and quicker to install than site-built garages.

Prefab Garage Cost

Prefabricated garages can cost between $20 and $50 per square foot. A standard two-car prefab garage can cost between $10,000 and $25,000.

Site-Built Garage Cost

Site-built garages are custom-built on-site and can cost between $35 and $60 per square foot. A standard two-car site-built garage can cost between $19,600 and $28,200.

Average Cost to Build a Garage Calculator

Below is a cost breakdown for building a 480-square-foot garage:

ItemQTYCost Per UnitTotal Cost
Foundation5.33 CY$139$740
Framing plus Walls480 SF$11.50$5,500
Ceiling Panels288 SF$1.80$520
Ceiling Insulation288 SF$0.93$270
Windows2$350$700
Entry Door1$200$200
Garage Door1$500$500
Roof Trusses & Supports288 SF$4.90$1,400
Shingles288 SF$3.60$1,050
Electrical1$1,500$1,500
Vinyl Siding480 SF$3.30$1,600
Gutters60 LF$4$240
Total Cost$14,200 ($49 per SF)

Garage Materials Cost Breakdown

Garage Foundation Cost

The foundation is a critical component of a garage, providing stability and support.

Size (4” Deep)Square FeetAverage Cost
16’ x 24’384$2,000 – $3,200
20’ x 20’400$2,100 – $3,300
24’ x 24’576$3,000 – $4,800
20’ x 30’600$3,200 – $5,000
36’ x 24’864$4,600 – $7,200

Garage Framing Cost

The cost of framing a garage depends on the type of frame used.

Frame TypeCost Per Square Foot
Timber or Wood Frame$10
Concrete Block Frame$10 – $35

Cost to Finish Garage Walls

Finishing the walls of a garage can add to the overall cost. Options include drywall, paneling, and various other materials.

Garage FinishingCost Per Square Foot*
Drywall$1.80
Melamine Slatwall$1.75
PVC$1.90
Metal Wall$1.90
Bamboo Wall$2.30
Galvanized Steel$8.00
Rosewood MDF$12.00
Faux Brick$14.00
Concrete Block$14.75
Extra for Window/Door$160 each
Drywall Plaster$2 – $10 per SF
Paint$1.50

Garage Roof

The roof is a significant part of the garage structure, impacting both cost and durability.

Install Gutters on a Garage

Gutters help manage water runoff and protect the garage foundation.

Garage Siding Costs

Siding options for a garage can vary significantly in cost.

Siding MaterialCost Per Square Foot*
Vinyl Siding$3 – $11
Aluminum Siding$3 – $11
Brick Siding$8 – $18
Fiber Cement Siding$6 – $13
Stone Siding$10 – $45
Wood Siding$4 – $13

Cost to Insulate Garage

Insulating a garage helps maintain temperature and protect stored items.

Insulation TypeAverage Cost Per SF1 Car (12’x24′)2 Car (24’x24′)
Batt$0.90$270$540
Blown In$1.50$430$860
Spray Foam$2.75$800$1,600

Garage Door Installation Cost

Garage doors are available in various materials and styles, affecting the overall cost.

MaterialSingle Door*Double Doors*
Aluminum$250 – $1,400$300 – $2,000
Wood$1,000 – $4,000$1,200 – $8,000
Faux Wood / Composite$300 – $4,000$500 – $5,000
Vinyl$300 – $2,500$400 – $4,000
Steel$250 – $2,500$500 – $4,000
Fiberglass$350 – $3,500$600 – $5,000+
Glass$700 – $5,000$2,000 – $8,000
Insulated$600 – $1,400+$1,200 – $3,000+
Screen Door$375 – $1,300$500 – $2,500

Garage Door Opener Installation Cost

Installing a garage door opener adds convenience and security.

Garage Entry Doors

Adding an entry door to your garage provides additional access and security.

Garage Lighting and Electrical Work

Proper lighting and electrical work are essential for a functional garage.

Garage Accessories & Options

There are various accessories and options available to customize your garage to meet your specific needs.

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Garage Building FAQs

How Much Does It Cost to Pour a 24×24 Slab of Concrete?

Pouring a 24×24 slab of concrete can cost between $3,000 and $4,800, depending on the thickness and reinforcement required.

How Much Does It Cost to Build a 1-Car Garage?

Building a 1-car garage can cost between $10,000 and $20,000, depending on the materials and finishes.

How Much Does It Cost to Build a 2-Car Garage?

Building a 2-car garage can cost between $19,600 and $28,200, depending on the materials and finishes.

How Much Does It Cost to Build a 3-Car Garage?

Building a 3-car garage can cost between $28,000 and $42,300, depending on the materials and finishes.

How Much Does It Cost to Build a 30×30 Garage?

Building a 30×30 garage can cost between $45,000 and $60,000, depending on the materials and finishes.

Hiring Your Garage Building Contractor

When seeking estimates for your garage construction, consider the following tips:

  1. Get Multiple Quotes: Compare prices and services from different contractors.
  2. Check References: Look for reviews and testimonials from previous clients.
  3. Verify Credentials: Ensure the contractor is licensed, insured, and experienced in garage construction.
  4. Ask About Customization: See if they offer custom solutions to meet your specific needs.

Questions to Ask Garage Builders

  • How long have you been in business?
  • Can you provide references from similar projects?
  • What services are included in your standard package?
  • Do you offer any specialized garage designs?
  • What are your rates for additional services?
  • How do you handle unexpected issues or additional requests?

Cost to Build a Garage Summary

Building a garage can provide valuable storage space and protect your vehicles from the elements. By understanding the costs, benefits, and available options, you can make an informed decision that meets your needs and budget.

For more information on garage construction and to explore other cost-related guides, visit our detailed articles on home improvement cost and shed construction cost.

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