Detached Garage Cost Estimator

If your home lacks a garage, there are compelling reasons to consider adding one to your property. A garage not only shields your vehicle from the harsh elements but also offers valuable storage and workspace options, catering to a range of needs from car maintenance to DIY woodworking projects. When contemplating the addition of a garage, it’s important to assess the advantages of both attached and detached options. Many individuals opt for a detached garage due to factors like mitigating carbon monoxide exposure within the home, circumventing structural obstructions, or for aesthetic and architectural considerations.

The cost of building a detached garage can vary considerably by location, size, materials, and finishes chosen. Typically, the cost to build a detached garage ranges between $31,500-$63,000, with the average customer paying $55,471.50 for building a two-car design (24’x24’) with a finished interior, asphalt shingles, and vinyl siding.

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Cost Category	Estimated Amount
National Average Cost	$55,471.50
Average Cost Range	$31,500 – $63,000
Low-End Estimate	$23,310
High-End Estimate	$115,500

Detached Garage Costs Based on Size

The size of your detached garage is primarily determined by your specific requirements and the available space on your property. Detached garage projects are often tailored to provide more than just car storage. For instance, a garage with a depth of only 20 feet may not offer ample space for storage or other versatile uses. It’s important to note that the costs mentioned here represent the lower end of the spectrum, and as you opt for greater depth, interior finishes, additional levels, or customized features, the cost of your standalone garage will proportionally increase.

Size	Cost Range
1 car	$23,310 – $33,600
2 cars	$32,550 – $40,950
3 cars	$47,250 – $59,850
4 cars	$53,550 – $70,350
RV	$57,750 – $73,500

1 Car Detached Garage

For a 1 car detached garage, the recommended size starts at 12’x20′. To enhance storage or workspace, consider extending the width or depth by 4 to 10 feet. Anticipate a cost range of approximately $23,310 to $33,600 or potentially higher if you opt for additional square footage or extra finishes and details.

2 Car Detached Garage

A 2 car detached garage should have a minimum size of 20’x20′, but you can expand it if space allows. If you require extra clearance for larger vehicles or desire more storage and workspace, consider enlarging the dimensions. The cost for the minimum size now falls within the range of $32,550 to $40,950.

3 Car Detached Garage

For those aiming to accommodate three cars or create space for two cars and a workshop, the minimum dimensions should be 30’x20′. The expected costs for a minimum-sized 3 car detached garage range from approximately $47,250 to $59,850.

4 Car Detached Garage

A 4 car detached garage necessitates a substantial property with a minimum size requirement of 40’x20′. This project typically falls in the cost range of $53,550 to $70,350.

Detached RV Garage

Detached RV garages are available in a range of sizes to accommodate the diversity of RV sizes on the market. For a 20’x44′ structure, suitable for most RV sizes, anticipate costs ranging from approximately $57,750 to $73,500. It’s important to note that an RV garage requires increased height and a larger door compared to a standard garage.

Detached Garage Cost per Square Foot

The expenses associated with constructing a detached garage exhibit considerable variability. From a basic structure with minimal finishes designed solely for vehicle protection to a high-quality garage with premium materials and a fully finished interior, the cost can differ significantly. Regardless of the specifics, investing in a detached garage on your property typically yields a substantial return on investment. The prices mentioned here pertain to single-story garages exclusively.

Square Foot	Cost Range
12’ x 20’ (240 sq.ft.)	$23,310 – $33,600
14’ x 28’ (392 sq.ft.)	$36,120 – $44,310
16’ x 24’ (384 sq.ft.)	$31,395 – $39,480
20’ x 20’ (400 sq.ft.)	$32,550 – $41,040
24’ x 24’ (576 sq.ft.)	$45,465 – $57,540
30’ x 20’ (600 sq.ft.)	$47,250 – $59,850
36’ x 24’ (864 sq.ft.)	$57,540 – $77,805

Detached Garage Roofing Costs Based on Roofing Material

When it comes to roofing for your detached garage, it’s essential to aim for compatibility with or complementarity to other structures on your property. Durability and maintenance requirements should be key factors in your decision-making process. Furthermore, if your intention is to utilize the detached garage for storing potentially flammable or hazardous materials such as paints, oils, fuels, or substances that emit fumes, it’s advisable to consider the installation of a non-flammable and robust roofing material.

Roofing Material	Average Cost per Square Foot (Installed)
Modified Bitumen	$1.58 – $5.25
Asphalt	$2.10 – $5.25
Cedar	$4.20 – $10.50
Metal	$5.25 – $21.00
TPO	$6.83 – $12.08
Tile	$7.88 – $17.85
Clay	$10.50 – $21.00

Modified Bitumen Roofing

For a more classic aesthetic, the preferred choice is modified bitumen, with costs ranging from approximately $1.58 to $5.25 per square foot. This budget-friendly material is known for its easy installation and a lifespan of 10 to 15 years.

Asphalt Shingles

Asphalt shingles, the most commonly used roofing material, come in at around $2.10 to $5.25 per square foot. Typically constructed from fiberglass, they offer a wide range of colors and boast swift and uncomplicated installation. Asphalt shingles tend to endure for 20 to 30 years.

Cedar Roofing

Cedar roofing, valued for its attractiveness and durability, carries a price tag of roughly $4.20 to $10.50 per square foot. With proper maintenance, it can last up to 50 years and exhibits resistance to hail damage.

Metal Roofing

Corrugated metal roofing, an appealing option with expedited installation, now costs between $5.25 and $10.50 per square foot. Alternatively, you can explore other metal choices such as aluminum, tin, galvalume, lead, metal slate, metal tile, stainless steel, rusted metal, and copper, which range from approximately $6.83 to $21.00 per square foot. Metal roofs entail minimal upkeep and boast lifespans ranging from 40 to well over 100 years.

TPO Roofing

For a long-lasting roofing solution, consider TPO, a type of rubber roof, which now falls within the price range of $6.83 to $12.08 per square foot. TPO roofing systems can endure for up to 40 years.

Tile Roofing

Tile roofing, though relatively costly, offers durability, minimal maintenance, environmental friendliness, and a lengthy lifespan. However, it can be challenging to install, prone to cracking when walked upon, and not universally suitable for all climates. Expect tile roofing to cost approximately $7.88 to $17.85 per square foot.

Clay Roofing

Clay roofing, priced between $10.50 and $21.00 per square foot, can last for several generations, up to 100 years. It comes in various shapes and styles; however, note that clay tiles are complex to install and replace if damaged.

Detached Garage Foundation

One of the most pivotal decisions when it comes to constructing a detached garage revolves around the choice of foundation style. Your location plays a significant role in determining the foundation options available, with some being more cost-effective. In regions with predominantly warm climates and infrequent freezing conditions, simpler and less expensive foundation designs are viable. Conversely, areas like New England, exposed to high humidity and extreme temperature fluctuations, necessitate deeper and more intricate foundations.

In locales where year-round moderate temperatures and low relative humidity prevail, building a small, straightforward single-car garage might warrant consideration of the least expensive foundation choice—a gravel pad. While cost-effective at approximately $4 to $10 per square foot, this option tends to be less substantial and durable. Concrete remains the go-to choice for the most robust garage foundations.

Concrete foundations for garages offer several options:

Floating Slabs on Grade: A straightforward and economical option now priced between $6.30 and $12.60 per square foot.

Floating Foundation: This option, costing approximately $8.40 to $14.70 per square foot, incorporates mesh reinforcement for added strength and perimeter footers up to a depth of 12″.

Monolithic Foundation: Similar to a floating foundation but with the inclusion of a concrete frost wall, suitable for regions with severe winters, with costs ranging from about $14.70 to $17.85 per square foot.

Block Foundation : Featuring 2′ wide footers and a 4″ concrete floor, this option, priced between $14.70 and $17.85 per square foot, provides frost protection and enhanced structural support.

Stem Wall: Necessary for foundations with basement components, this option costs approximately $16.80 to $18.90 per square foot.

Detached Garage Construction Labor Costs

When embarking on the construction of a detached garage, it’s crucial to consider the labor expenses involved. A seasoned contractor will collaborate with you to discuss your plans, subsequently arranging and overseeing the necessary specialists to execute the required tasks. The state in which you reside will play a significant role in determining these costs. Moreover, numerous variables contribute to your overall labor expenses.

For instance, the hourly rate for electricians in the United States can range from $42 to $105 per hour. In cases of more intricate wiring needs, electricians may also factor in square footage charges. Similarly, siding professionals typically assess their fees on a per-square-foot basis, with an average hourly rate of $42 to $52 included in that square foot pricing. Roofing labor charges usually revolve around a per-square-foot rate, typically averaging around $3 per square foot.

If you opt for premium finishes or incorporate elements like custom brickwork, slate roofing, or complex HVAC systems, these choices will impact the labor costs of each specialist involved, thus influencing the overall labor cost.

Detached Garage Insulation and Estimates

The decision to invest in garage insulation hinges on how you intend to utilize the space and the climate of your location. If you’re constructing a detached garage solely for car storage in a warm climate like Florida, insulation may not be a top priority. However, if your detached garage is destined for use as a woodworking shop in a colder region like Maine, insulation becomes a significant consideration.

Various insulation options are available, each accompanied by its own cost considerations. Additionally, it’s crucial to recognize the importance of not just insulation but also air sealing. Typically, garages aren’t constructed to be airtight and often feature numerous air gaps leading to the outdoors, allowing heat to escape.

At our service, we provide estimates tailored to your specific project requirements to help you make informed decisions about garage insulation.

Advantages of a Detached Garage

Like any home improvement project, the decision to build a detached garage comes with its own set of pros and cons. Your choice will ultimately depend on your objectives, space requirements, property constraints, and financial considerations.

While constructing a detached garage involves starting from scratch and may incur higher costs, it also necessitates braving inclement weather to access your vehicle and potentially involves driveway installation or modification. However, the benefits of a detached garage are substantial. It enhances family safety by keeping carbon monoxide fumes at bay, grants greater design flexibility, and offers additional storage or workspace. Furthermore, it provides increased privacy, especially if your plans include living space within the structure.

FAQs - Detached Garage Cost Estimator

What is the average cost of constructing a detached garage?

The national average cost for constructing a detached garage is approximately $55,471.50. However, the cost can vary based on factors like location, size, materials, and finishes.

What is the cost range for building a detached garage?

The average cost range for a detached garage typically falls between $31,500 and $63,000.

How much does a 1 car detached garage cost?

The cost of a 1 car detached garage can range from approximately $23,310 to $33,600, depending on size and customization.

What is the cost range for a 2 car detached garage?

A 2 car detached garage can cost between $32,550 and $40,950, depending on factors like dimensions and additional features.

How much does it cost to build a detached RV garage?

The cost of a detached RV garage can range from approximately $57,750 to $73,500, depending on the size and specific requirements.

What are the roofing material options for a detached garage, and how much do they cost?

Roofing material options include modified bitumen, asphalt, cedar, metal, TPO, tile, and clay, with costs ranging from $1.58 to $21.00 per square foot, depending on the material chosen.

What are the foundation options for a detached garage, and how much do they cost?

Foundation options include gravel pad, floating slabs on grade, floating foundation, monolithic foundation, block foundation, and stem wall. Costs vary depending on factors like location and complexity, ranging from $4 to $18.90 per square foot.

What factors influence the labor costs for constructing a detached garage?

Labor costs for a detached garage can be influenced by factors such as location, specialty features, premium finishes, and the expertise required for electricians, siding professionals, roofers, and other specialists.

Is garage insulation necessary, and how does it affect the cost?

The necessity of garage insulation depends on its intended use and climate. Insulation costs can vary based on the type of insulation chosen and the size of the garage.

What are the advantages of building a detached garage?

Advantages of a detached garage include increased safety by reducing carbon monoxide exposure, design flexibility, additional storage or workspace, enhanced privacy, and the potential for creating living space within the structure.

Conclusion

When considering the addition of a detached garage to your property, it’s essential to weigh the various factors that impact its cost, from size and roofing material to foundation style and labor expenses. Our website, Estimate Florida Consulting, is here to assist you in this process by providing estimates tailored to your specific project requirements. A detached garage offers numerous advantages, including enhanced safety, design flexibility, and additional storage or workspace. While it may involve higher upfront costs and potential modifications to your property, the benefits it provides make it a valuable investment for your home. Whether you’re looking to protect your vehicles or create a versatile space for your hobbies and projects, a detached garage is a valuable addition to any property.

Process To Get Detached Garage Cost Estimate Report

Here I am going to share some steps to get your detached garage cost estimate report.

You need to send your plan to us.

You can send us your plan on info@estimatorflorida.com
You receive a quote for your project.

Before starting your project, we send you a quote for your service. That quote will have detailed information about your project. Here you will get information about the size, difficulty, complexity and bid date when determining pricing.
Get Estimate Report

Our team will takeoff and estimate your project. When we deliver you’ll receive a PDF and an Excel file of your estimate. We can also offer construction lead generation services for the jobs you’d like to pursue further.