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Prices are subject to change based on area of installation and manufacturer

Single Car Garage


All our buildings are fully-customized to your preferences. Let our experts help you with your building by requesting a quote.

Single Car Garage

18 ft
21 ft
8 ft
Roof Style: Vertical
Roof Color: White
Roof Trim: Corner-trim
Roof Trim Color: White
Gauge: 14

*prices may change depending on location and manufacturer

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Lower prices may be available*


The best defense against the elements and other threats for your vehicles and belongings! The vertical steel garage buildings we have for sale are all made with very high-grade galvanized steel. The steel imparts strength and durability to the entire structure.

However, it is not just the structural integrity of our vertical prefab metal garages that our customers seem to love. With the A-framed roof structure, these metal garages also provide incredible looks.

As one of our vertical metal garage buildings, this specific garage, combines the best of aesthetics and functionality. It comes in a dimension of 18’W x 21’L x 9’H, giving you more than 350 sq — Ft of usable floor area.

Why Purchase 18 x 21 Vertical Steel Garage Buildings?

There are many many benefits to our vertical steel garage buildings. These garage buildings are reliable and long-lasting. They also offer clean looks that blend in with the style of traditional houses. Plus, they are very low-maintenance and do not require as frequent cleaning as horizontal roofs.

This 18×21 metal garage derives its flexibility from the clear-spanning nature of steel. The clear-spanning interior of the building is the reason why this garage can be used for numerous purposes.

Specifications of 18 x 21 Vertical Prefab Metal Garage Kits

We recommend the vertical prefab metal garage kits at Carport1 to people living in areas that are very susceptible to harsh weather conditions. It’s because the vertical roof and the 14-gauge tubular framing are strong enough to resist heavy weather loads.

Moreover, the structural elements like the hat channels and the ridge caps also help to strengthen the metal garage. Also, this garage comes fully enclosed in vertical panels, including the roof and wall panels.

We also offer some options and upgrades with our metal garages. One of the enhancements is the 12-gauge tubular framing which is much stronger than 14-gauge framing. This metal garage, when purchased as a certified unit, is designed to stand up to the specific weather conditions of your place.

As for the openings, this metal garage features a 10′ x 8′ roll-up garage doors for the movement of vehicles and a walk-in door for more ordinary usages. Our vertical prefab metal garages are fully customizable. So, feel free to design this garage as per your requirements.


Front End Back End Right Side Left Side

  • Fully enclosed in Vertical orientation
  • Panel Color: White
  • Corner-Trim on Corners
  • Corner’s Corner-Trim color: White
  • One 10’x 8′ Garage Doors
  • L – trim on Garage Doors
  • Garage Door’s L-Trim Color: White
  • Fully Enclosed in Vertical orientation
  • Panel Color: White
  • Corner-Trim on Corners
  • Corner’s Corner-Trim Color: White
  • Panel Color:
  • Fully Enclosed in Vertical orientation
  • Panel Color: White
  • One 36″ x 80″ Walk-In-Door
  • J – trim on Walk-In-Door
  • Walk-In-Door’s J-trim Color: White
  • Fully Enclosed in Vertical orientation
  • Panel Color: White

Option/Upgrade Available For all ENDs and SIDEs.

  • Vertical siding
  • Certified/non-certified gables
  • Fully enclosed in vertical/horizontal siding
  • Walk-in doors
  • Garage doors
  • Frameouts
  • Windows
  • Certification (for main section/lean-to’s)
  • Colors (free)
  • Wainscot (available in vertical/horizontal orientation)
  • 12 gauge steel
  • Colored screws
  • Insulation
  • 45-degree angles on frameouts

Limited Warranty and Service

This building (14 Gauge) has 30-day material and workmanship warranty with 20-year limited rust through warranty on the Tubular Frame. Also, Optional 12 Gauge has 20-year rust though warranty on the frame. Warranties can vary based on manufacturer.

Free Delivery and Installation

Free Delivery and Installation on this building. Please go through the documentation to learn more about our free delivery and installation. Lead time may vary depending upon your installation location.

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Steel storage structures are becoming more popular in the United States as a result of their practicality. They are incredibly adaptable and provide a cost-effective method to add storage space and value to any home.

Financing Options

Buying and Installation Guides

Our guides help you to get started with the buying and installation process. We make buying metal buildings quick, easy, and informative.

Roof Styles

Pick the right roof style for your metal building or structure. Carport1 can help you make sure your roof is right for you and where you live.

Customization Options

Customize your metal building with side panels, gables, trusses and more. Don’t know what that is? Learn everything about Carport1’s customization options here.

Frequently Asked Questions

We have compiled a comprehensive list of questions our customers frequently ask us. Find all the detailed answers in the FAQ section.

How-To Videos

Learn how to choose, customize, and install your new metal building from Carport1.


The latest news and information, with tips, tricks, and how-tos, from Carport1.

Delivery & Installation Included

Carport1 includes delivery & installation in most of the USA.

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