3-Car / 3-Bay Prefab Metal Garage Kits with Free Delivery and Installation
When choosing a 3-car prefab metal garage, start with how you plan to use the space. These garages can protect cars and trucks, but they’re also useful for storing RVs, boats, bicycles, lawnmowers, tools, and farm equipment.
Once you know what you need to store, it’s easier to choose the right garage dimensions, door layout, windows, and features. You can customize your 3-car garage to fit your property, your storage needs, and the amount of available space you have.
Get a Custom Metal Garage at Unbeatable Factory-Direct Prices
Instant Online Pricing
Exact price online for metal garages—no calls, no forms.
Free Delivery & Installation
We deliver and install at no extra cost in our service areas.
Certified Quality
U.S.-made steel, 1-year workmanship warranty.
100,000 Satisfied Customers
23+ Years of Factory Direct Prices
Save on a Durable Metal 3-Car Garage
If your current garage no longer has enough room, a prefab 3-car garage can give you the extra space you need for vehicles, tools, equipment, and storage. A single-car or two-car garage may not be enough when you need to protect more vehicles or keep valuable items safe.
Alan’s Factory Outlet offers durable 3-bay metal garages that are attractive, affordable, and built as detached 3-stall structures. Our prefab 3-car garage styles come with free installation to help keep your cost low, so you can get a high-quality garage kit without sacrificing durability for price.
100,000+ Customers and Counting
Perfect building perfect customer service and this is my 3rd structure they have built for me. Love them!
Absolutely awesome website!!! Loved this purchasing experience, as it was the easiest I have ever made online!!! The product is just what I was looking for and at a cost that I was looking for too. Everything made here in the good 'ole USA! I HIGHLY RECOMMEND Alan's Factory Outlet!!!
This building looks amazing. The color match was perfect. The crew were very polite and worked hard. They took a magnet sweep to make sure they didn't leave any screws or metal pieces on the ground. I highly recommend this company
This is the 4th building I've ordered from you so far. Always been extremely pleased. Have no reason to think this time will be any different. You guys always do a AWESOME job!!
The online metal carport configurator on this site is incredible. The level of detail and modularity is outstanding, and I don't know of any other retailer that can compete. Every price is clearly defined, which gave me total peace of mind and made the entire buying process incredibly easy!
Customer service was top notch! Love the new building. Contractors that set it up were well trained and did an amazing job
Easy navigation on website. Loved the customization feature. Exceptional quality of product & installation.
We were so excited to finally purchase and have a new carport installed. The entire experience was better than we could have imagined and it looks great!!
Love the site. Easy to use and design carport and see what we are getting. Was able to design my carport to my specific design and see what it would look like. Was able to add just the things I needed and nothing else. Loved using the site. If I ever need another shelter, will order from Alan's again.
This will be my third carport from Allen's and as always the experience is always perfect!!
Excelente la experiencia de compra,es la segunda vez que realizo una compra y estoy muy satisfecho,y los recomendare a mis familiares y amigos.Son los mejores.
Every person that I talk to on the phone was great! The installation crew was wonderful! I am very pleased with the overall purchase, Thank you,
It was very user friendly and organized. Pricing was offered for every feature added and the sum total was visible the entire time. The 360 degree visual of selections was great. Each feature had a brief description. Other companies should take note. I have not seen this anywhere else
Amazing website, great color options, very competitive pricing, simple and easy ordering, building, and plan delivery, phone operator picked up quickly and is locally based. Totally blown away, wouldn't have a workshop without them.
Very satisfied with the turnout of my carport, was installed perfectly, and professionally, price was very reasonable compared to other dealers , actually was less, the online process let me be the architect of my carport, this was my second carport, definitely recommend allans
Very easy to access website and browse the buildings. It was easy to follow the directions to get the product ordered, too! Well done website! Thank you!
customer service has been exceptional when asking a question. site is extremely easy to use and break down of cost clear and direct.
This site makes it so easy, its free delivery and install, and you wont find a better price anywhere. You can customize everything very well.
This is my second purchase. The first experience was so amazing, I wouldn’t trust anyone else!!
The website was easy to use. Your design tool was great; we were able to see our design as we picked the colors, size, and extras. Then printed a copy of the design to put in our records. Thanks again, Gary & Sharon Hart
Reviews from Our Happy Customers
Alan’s Factory Outlet is a legitimate business with an A+ rating from the BBB.
What Is a 3-Bay Garage?
A 3-bay garage is a larger building with room to store three vehicles. The garage can contain three ports or three finished doors, depending on the style and design laid out in your 3-car garage plans. The addition of doors affects the overall 3-stall garage cost, but it’s a given that the size of this garage can fit three vehicles no matter how many doors are added.
3-Car Garage Prices: What to Consider
What Does a 3-Car Garage Cost?
How much is a 3-car garage? Prices vary based on size, height, and added features. A basic 40×20 prefab 3-car garage starts at $12,050, while a larger 60×52 structure that’s 20 feet tall can cost up to $42,570. Knowing the size you need is the best first step toward getting an accurate estimate.
Features like walk-in doors, windows, insulation, and other upgrades can increase the total cost. However, shipping and setup are included in your 3-bay garage price: each of our metal buildings comes with free delivery and installation in the 21 states where they are sold.
Get an Instant Quote for Your Custom Garage
Choose your size, style, and roof — get a real-time estimate right away.
What Is a Good Size for a 3-Car Garage?
At a minimum, when building a 3-car garage, we recommend that it be at least 40 feet wide to house three vehicles. A detached 3-car garage can be as small as 40×20 or as large as 60×300. The best 3-stall garage dimensions for you will depend on how you plan to use your garage and the size of the vehicles you plan to store in it: Everyone has their own perfect 3-car garage size.
How Big Is a 3-Car Garage?
Our oversized 3-car garage dimensions are available in 40-foot-wide, 50-foot-wide, and 60-foot-wide options. The 3-car garage size ranges in each category are:
- 40×20 to 40×80
- 50×20 to 50×100
- 60×20 to 60×300
Your Quick Guide to Metal Garages
Learn how to pick the right size, roof, and certification, see what drives price, and avoid common mistakes.
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Learn how to pick the right size, roof, and certification, see what drives price, and avoid common mistakes.
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Ready to create your garage today?
Customize Yours Now3-Car Detached Garage Customization Options
When choosing a 3-car detached garage, you can customize the height, width, length, roof style, doors, windows, and layout to fit your needs. You can also choose from a variety of metal garage colors for the roof, trim, sides, and doors, helping your garage match or complement your property.
Other design options include placing garage doors on the end or side of the structure, adding walk-in doors or windows, and upgrading to 12-gauge tubing for extra strength. This option is available on our three-car metal garages for sale and comes with a 20-year rust-through warranty.
Choose the Right 3-Car Garage for You
At Alan’s Factory Outlet, we work hard to offer the best 3-car metal building prices. Your cost will be influenced by factors such as the size, style, materials, and optional features that you choose, but we aim to keep the 3-bay garage price as low as we possibly can. That’s just part of our devotion to top-notch customer service.
Ready to buy your new three-car garage? Place your order online today, or call our toll-free number and let our customer service staff assist you.
The Easy Way to Build Your Own Garage
Design your metal garage online
Order online with
a small deposit
Get a permit
(if required)
Get free delivery and installation
Why Shop Alan’s Factory Outlet for Metal Buildings?
Free Delivery and Professional Installation in 21 States
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