Free delivery and quick, free installation
Refundable small deposit to order
20-year warranty on 12-gauge orders

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18×20 Vertical Roof Metal Garage

Deposit to Order:
Price $5,650.00
Refundable small deposit to order

Customize Your Product

The leg height fully enclosed for the 12 to 24 wide metal garage pages is standard with 9′ legs and can be made taller up to 14′ tall fully enclosed on the regular style and up to 16′ tall fully enclosed on the boxed and vertical style metal garages. (12′ wide can only be made 12′ tall as the structure can not be taller than it is wide). If you are looking for the center height clearance you can type in “center height clearance” in the ask a question on the bottom right of the page or you can always call or email with any questions. The 32 to 60 wide metal garages come standard with 8′ legs fully enclosed and those sizes are available up to 20′ tall.

Select the type of level surface you will provide. The level surface must be provided by the customer and we will install and anchor to the selected surface. The site must be level or no more than 3 to 4 inches off level.

Select the type of level surface you will provide. The level surface must be provided by the customer and we will install and anchor to the selected surface. The site must be level or no more than 3 to 4 inches off level. On the standard concrete mount the concrete pad must be pre-poured prior to install, and include a 2″ minimum extension of concrete beyond frame size, on all four sides. On the flush concrete mount option. Concrete pad must be pre-poured prior to install, pour pad to match frame size. This option includes concrete anchor brackets, to shift concrete anchors further inside the building, away from the edge of the pad.

If you select this upgrade, the carport or garage will be certified for 140 mph (winds) and 35 psf (snow).

All 16 different colors are available for the same price and the color does not affect the delivery time. The roof sheeting is 29 gauge.

All 16 different colors are available for the same price and the color does not affect the delivery time. The trim color is the color on the ends.

$5,650.00 Price
Deposit to Order

FREE Delivery and Installation
Price details
$4,800.00 Item Base
Only pay a deposit
for delivery
Family-owned, custom-
made U.S. products
20-year warranty
on 12-gauge orders
Easy contact via
phone or website
Deposit to Order

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About Our 18x20 Metal Garage

This affordable 18x20 metal building is made in the USA with American steel. With 360 square feet of space, it can be used as a 1-car garage, shop, storage building, or large shed.

Customize the height, doors, windows, and colors above to see exactly how much this 18x20 metal garage building costs with the options you need. We offer free delivery and installation instead of a kit.

Product Description Specifications

This 18×20 garage is 2 feet wider than a 16×20 garage building, giving you a little extra space for storage for about the same price.

The 18 x 20 Vertical Roof Metal Garage comes standard with a 9’ tall side/leg height fully enclosed. The cost of a garage door, walk in door, or window is not included in the price.

Select the garage door size that works best for you and the price with the garage door will automatically be updated in the price with options. Other options such as a walk in door, window, and taller side height can be added for an additional cost as well.

Alan’s Factory Outlet 18×20 vertical roof metal garage is 18′ wide by 20′ long and has 360 square feet of fully enclosed storage space. Please feel free to call a customer service representative today at 1-800-488-6903 with any questions about the garages.

The metal garages shown here include free delivery and installation in Alabama AL, Arkansas AR, Georgia GA, Illinois IL, Indiana IN, Kentucky KY, Louisiana LA, Mississippi MS, Missouri MO, North Carolina NC, Oklahoma OK, South Carolina SC, Tennessee TN, Texas TX and Virginia VA. Delivery area may not be available in all locations.

*The metal garage prices are subject to change without notice

Upon ordering the garage at Alan’s Factory Outlet, a 10% to 17% deposit is due with a credit or debit card. The balance is due once the steel garage is delivered and installed, payable directly to the install crew. Final payment can be made via credit card or money order.

Once you place an order, a member of our office staff will reach out to you to confirm your order. Additionally, a copy of the invoice will be sent to you via email to review and approve your purchase, which is designed to ensure the garage is ordered correctly.

The steel garage is anchored to your level dirt or gravel surface with rebar and auger type anchors (also sometimes called mobile home anchors). If you provide a level concrete pad or footing for the install surface, the installers will utilize red head expansion anchors instead. We can also anchor to a level asphalt pad using asphalt anchors. The location for the garage must be level or within at least 3″ of level or less. Please know that any degree off level will (even if less than 3”) will cause the doors to not close properly. If the site is not level, we will not be able to install it. Please notify a member of our customer service team if you have a unique install surface so we can be sure install is possible.

All stated dimensions are in reference to the frame size, not the roof dimensions. The cement pad must be at least 4” wider and longer than the frame size of your garage.

We delivery and install the metal garages on your level foundation but we do not provide any foundation or site prepping services. Please be advised that although pricing for any metal building that is 15′ or 16′ tall (side/leg height) would include installation on your level land, you are required to provide a telescopic forklift for the installation crew’s use.  This telescopic forklift must extend a minimum of 10′ beyond your chosen side height on your building.  If you do not own this equipment, you would want to consider your rental costs to supply one.

The metal garages are certified for 35 psf (pounds per square foot of snow) and 140 mph (wind rating). Upon request generic engineer blue print drawings are available, which may or may not be required to secure your permit.

The garages are made with 14 gauge galvanized steel framing, which is 2 1/2″ by 2 1/2″ square tubing. The metal sheeting is 29 gauge galvanized steel.  There is a 90 day workmanship warranty.

The garages are custom-built in the size, style, and options you select. You can choose from 15 different colors for the roof, sides, and trim.

Colors are approximate and may vary:

18x20 Vertical Roof Metal Garage Colors

You can buy your metal garage online or you can order it by calling Alan’s Factory Outlet toll free at 1-800-488-6903.

Cars 1 Car
Roof Style Vertical
Width 18
Length 20
SQFT 360
Frame 14 Gauge
Doors 0
Windows 0
Alan's Metal Garage Buyer's Guide Cover

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