A complete guide to garage construction: from design to budget, step by step to realize your ideal space
In the United States, building a garage is not just for parking vehicles, it can also be used as a storage space, a studio, and even to increase the value of the house. Whether it is a parking space or an added home function, the construction of a garage is an important investment. This article will introduce the size, construction cost, material selection and other key factors of the garage in detail to help you plan and make better decisions.

1. Garage Size Design
The size of a garage directly affects its functionality and comfort. Choosing the right garage size requires considering the number of vehicles parked, the type of vehicle, and whether additional storage or workspace is needed.
1.1 Common Garage Sizes
Single Garage
A single garage is suitable for families with only one car or those who want to use the garage as additional storage space. Common sizes are:
● Width: usually 12-14 feet (about 3.6-4.3 meters)
● Depth: usually 20-24 feet (about 6-7.3 meters)
● Height: 8-10 feet (about 2.4-3 meters)
This size is suitable for most small sedans, coupes or compact SUVs. If you have a larger car (such as a pickup truck or a large SUV), you may need to increase the depth and width.
Double garage
A double garage is suitable for families with two cars, providing enough space for parking, storage or other functions.
● Width: Typically 20-24 feet (about 6-7.3 meters)
● Depth: Typically 20-24 feet (about 6-7.3 meters)
● Height: 8-10 feet (about 2.4-3 meters)
Double garage designs often include a center partition, or a wider space as needed, suitable for parking two cars and more space for passage.
Triple garage or larger
For families with three or more cars, or who want the garage to have more functions (such as storage, workshop, etc.), a triple garage is an ideal choice.
● Width: Typically 30-36 feet (about 9-11 meters)
● Depth: Typically 20-24 feet (about 6-7.3 meters)
● Height: 8-10 feet (about 2.4-3 meters)
Triple garages often have multiple garage doors (such as a combination of double doors and single doors) to provide greater flexibility.
1.2 Additional Features and Design
● Workshop or Workshop: If you plan to use your garage as a workspace or workshop, you may need additional space, more electrical outlets, or a better ventilation system.
● Storage Space: Storage space in a garage can be maximized through shelves, cabinets, and upper storage space, ensuring that the design provides effective organization and storage space.
● Electric Garage Door: Electric garage doors offer greater convenience and security than traditional manual doors, especially for families who frequently come and go.
2. Garage Construction Costs
The construction costs of a garage vary by region, material, size, and design complexity. Here are approximate construction costs for some common garage types.
2.1 Foundation Construction Costs
The foundation construction costs usually include the foundation, frame, walls, roof, and garage door installation. This part is usually the main part of the total cost of the garage.
● Single garage: about $7,500 - $15,000
● Double garage: about $15,000 - $30,000
● Three-car garage or larger: usually $30,000 and up
2.2 Material Selection
The construction materials of the garage will significantly affect the total cost. Common garage materials include wood, steel, concrete, and brick.
● Wood-framed garages: Wood is a traditional and relatively cheap choice, but it requires regular maintenance and has poor durability.
● Steel-framed garages: Steel-framed garages are favored for their durability and low maintenance costs, but they are usually more expensive.
● Concrete or brick garages: These materials are more durable and suitable for areas where long-term protection of vehicles is required, but they are more expensive.
● Metal or vinyl exteriors: These exterior materials are durable and easy to maintain, suitable for modern garage designs.
● Garage doors: The price of garage doors varies depending on the material, size, and whether they are insulated. Basic steel garage doors usually cost between $500-$1,500, while custom or insulated doors can cost more than $3,000.
2.3 Other costs
● Electrical wiring and lighting: If you plan to install electrical systems, lighting, or more outlets in your garage, the cost will be approximately $1,000-$3,000.
● Floor treatment: If you choose to lay tile or apply anti-slip floor treatment, the cost will be approximately $2,000 or more.
● Insulation and waterproofing: If the climate conditions in your area are more extreme (such as extremely hot or humid), you may need to add insulation and waterproofing to your garage, which usually costs more than $3,000.
2.4 Permits and Approvals
In most areas of the United States, you will need a building permit to build a garage. The cost of a permit varies depending on the local government, but is usually between $200 and $1,000. If the garage design violates local building codes or land use regulations, you may face additional fees or delays in approval.
3. Garage Design and Selection
When designing a garage, in addition to considering size and function, you also need to pay attention to some details to ensure that the garage can meet the needs of long-term use.
3.1 Garage Style
● Attached Garage: Attached garages are directly connected to the house and are usually more convenient for entry and exit, but may affect the appearance of the house.
● Detached Garage: Detached garages are not connected to the house, providing more design flexibility, but may not be as convenient as attached garages. They are suitable for families who need extra privacy or space.
● Awning (Carport): If the budget is limited, you can choose a carport. It is a simple structure that is mainly used to provide shelter for vehicles but is not fully enclosed.
3.2 Insulation and Ventilation
If your area has very hot summers or cold winters, it is recommended to add insulation materials to the garage, which will not only improve the comfort of the garage, but also save energy. Common insulation materials include:
● Fiberglass insulation material: cost-effective and suitable for most families.
● Spray foam insulation material: better effect, but higher cost
● Insulated garage door: If the garage is often used to store vehicles or items, consider choosing a garage door with insulation.
3.3 Energy efficiency considerations
If your area has very hot summers or cold winters, it is recommended to add insulation materials to the garage, which will not only improve the comfort of the garage, but also save energy. Common insulation materials include:
4. Garage Construction Process
4.1 Planning and Design
Before you start construction, you need to determine the design, size, and required functions of your garage. You can ask an architect or designer to help you complete the design to ensure that it meets your family's needs and local building codes.
4.2 Obtaining Permits
After the design is completed, apply for the necessary permits from the local building authority. This process may take a few days or weeks, depending on your city or county.
4.3 Site Preparation and Foundation Construction
Before you start construction, you need to clear the site and make sure the foundation is level. Depending on the climate and geological conditions, the foundation of the garage can be a slab foundation, a crawl space foundation, or a basement foundation.
4.4 Construction Phase
The construction process includes framing, wall construction, roof installation, and garage door installation, which usually takes 3-4 weeks, depending on factors such as size and weather.
4.5 Final Inspection and Acceptance
After construction is completed, a final inspection is required to ensure that everything meets safety standards and building codes. Once it passes the acceptance, you can start using your new garage.
5. Conclusion
Whether it's for parking, storage, or to increase the value of your home, building a garage is an important investment. With the right size, design, and budget, you can create a garage that is both functional and durable. Hopefully, this article will provide you with a useful guide to help you complete your garage construction. If you're planning to build one, it's best to consult with a professional to ensure the project goes smoothly.