12x20 Metal Garages

Your truck’s been sitting in the driveway all winter, and it’s starting to show. Paint dulls in the sun, ice scrapers leave scratches, and rust doesn’t wait for permission. A 12×20 metal garage would fix that in a weekend, but most listings online look flimsy, and the real price stays hidden until you ask about delivery and installation.

Every season without cover costs you. Outdoor storage speeds up depreciation, and small dents, faded paint, and cracked dashboards pile into a resale hit you won’t notice until you actually try to sell the vehicle.

Our 12×20 metal garages give you 240 square feet of weather-resistant steel construction, delivered and installed free anywhere in the country. Call us at (866) 941-4072 or schedule a free consultation for a real number on your project.

A 12×20 metal garage is a 240-square-foot steel structure built for single vehicle storage or equipment protection. At 12 feet wide by 20 feet deep, you’ve got enough room to comfortably park one standard vehicle and still have workspace around the perimeter for tools, storage shelves, or seasonal gear.

The 12×20 footprint gives you 240 square feet of protected space under a roof that typically stands 8–10 feet tall at the peak. Twelve feet of width handles most cars, trucks, and SUVs with clearance on either side. The 20-foot depth? Plenty of room to pull all the way in and still keep storage at the back.

Popular applications include protecting a single car or truck from the elements, creating secure space for ATVs, motorcycles, or golf carts, storing lawn equipment and tractors, setting up a hobby workshop with room for tools and projects, and organizing seasonal items or business inventory.

This size is NOT suitable for parking two full-size vehicles side-by-side — you’d need at least 20 feet of width for that. Planning to store a vehicle plus a boat or trailer? Need extensive workshop space with multiple work zones? Thinking you might add more vehicles soon? We’d steer you toward our 20×20, 12×24, or larger options instead. Better to size up now than wish you had later.

A 12×20 metal garage typically costs between $4,900 and $8,500 total installed price, depending on your roof style, customization choices, and where you’re located.

Your roof style has a big impact on the final number. Regular roof models (with horizontal panels) start at $4,900–$6,200 total installed for a basic 12×20 setup. A-frame roof models (vertical panels) generally run $5,700–$8,500 depending on how much you customize.

Yes, the A-frame costs more upfront. But here’s the thing — vertical roof panels can extend building lifespan by 40% in areas with heavy rain or snow. If you’re somewhere with rough weather, that extra investment pays for itself.

Where you live matters. Coastal regions requiring enhanced wind ratings or areas with heavy snow loads may add $300–$800 to your total. Regional building codes and delivery logistics factor in too. We give you accurate, location-specific pricing when you request your custom quote — no guesswork, no surprises.

We include free delivery and professional installation of your 12×20 metal garage to all 50 states — covering transportation from our manufacturing partner’s facility, a skilled installation crew, complete building assembly, and secure anchoring to your prepared foundation.

Our delivery and installation package covers coordinating delivery scheduling around your timeline, dispatching a professional crew with all the equipment they need, completing full assembly — roof panels, wall panels, doors, trim, everything — anchoring your garage securely to your foundation, and running a final inspection. Most 12×20 installations wrap up in 4–8 hours once our crew’s on-site.

We handle delivery and installation. You handle site prep before our crew shows up. That means providing a level foundation (concrete slab, asphalt, or compacted gravel pad), clearing the area of debris and obstacles, making sure our delivery truck can actually get to the site, pulling any necessary building permits, and verifying utility lines are marked and clear. Proper site preparation reduces installation complications by 85% and keeps your warranty intact. Don’t skip this part.

From order confirmation to finished garage, we typically complete the whole process in 4–8 weeks. Manufacturing runs 2–4 weeks depending on how custom you go. Delivery scheduling adds another 1–3 weeks while we coordinate routes and confirm your site’s ready. We keep you in the loop the entire time with updates at each stage.

Choose an A-frame roof if you deal with heavy snow, frequent storms, or want maximum durability. Go with a regular roof for budget-friendly protection in mild climates where precipitation isn’t a major concern.

Regular roof metal garages use horizontal panel orientation, creating a rounded or slightly curved roofline at our most economical price point. They work well in regions with light to moderate rainfall, areas that barely see snow, and locations with generally mild weather. Southeast, Southwest, Southern California — if that’s you, a regular roof makes a lot of sense.

A-frame roofs run panels vertically from peak to eave, and that difference matters more than most people realize. Water and snow shed off instead of pooling. Wind uplift resistance jumps significantly — we’re talking 140+ mph ratings compared to 100–120 mph for regular roofs. Leaks become far less likely over time. Vertical roof panels can reduce maintenance requirements by up to 60% compared to horizontal configurations in high-precipitation areas.

We strongly recommend A-frame roofs for the Northeast, Midwest, Pacific Northwest, and mountain regions where snow loads exceed 30 pounds per square foot or severe storms are common. Worth the upgrade. Every time.

We offer extensive customization including more than 20 color choices for roof, walls, and trim, multiple door configurations with roll-up garage doors and walk-in entries, window placements for natural light, lean-to additions that extend your covered space, and insulation options for climate-controlled environments.

Pick from more than 20 standard colors — classic neutrals like white, beige, gray, brown, and black, or bold options like red, blue, green, and burgundy. Mix and match however you want. Some customers go with matching roof and walls for a clean, cohesive look. Others pick contrasting trim that ties into their home’s exterior. Two-tone designs are popular too — they add some real architectural character.

Roll-up garage doors come in 8×8, 9×7, 9×8, or 10×10 sizes for vehicle access. Walk-in doors (36′ standard) are available with window options. And you can combine garage doors with walk-in entries for maximum flexibility. Want the door on the 12-foot width for traditional access? Done. Need it on the 20-foot length because of your site layout? We can do that too.

Beyond doors and colors, we offer windows in various sizes for natural light and ventilation, lean-to additions (typically 6–12 feet wide) along one or both sides, insulation packages for temperature control, and reinforced framing for extreme weather areas. Each add-on bumps up your base price — but it’s how you turn a basic shelter into a space that actually works the way you need it to.

Your 12×20 metal garage requires a level foundation — either a 4-inch concrete slab, asphalt surface, or compacted gravel pad with proper drainage. What you choose directly affects your building’s long-term stability, warranty validity, and overall performance.

Concrete is the gold standard. A permanent, level surface that blocks moisture, eliminates floor dust, and maximizes your building’s lifespan. A 4-inch reinforced concrete slab for a 12×20 garage typically runs $1,200–$2,400 depending on your area.

Asphalt works well if you’re placing your garage on an existing paved surface. Compacted gravel pads are the most budget-friendly route — usually $300–$600 for materials and installation — but they need proper perimeter framing and may require periodic releveling. Concrete costs more, but you won’t think about your foundation again for decades.

How long does a 12×20 metal garage last? With proper maintenance, our metal garages last 20–30 years or more. A-frame roofs with vertical panels typically outlast regular roofs in harsh climates.

Do I need a building permit? Most locations require permits for structures over 120 square feet. Check with your local building department before ordering. We provide documentation to support your permit application.

Can I install the garage myself? While DIY installation is possible, we include free professional installation that makes sure everything’s assembled correctly, keeps your warranty coverage intact, and typically wraps up in 4–8 hours.

What maintenance does a metal garage require? Minimal. Annual inspections for loose fasteners, clearing debris from the roof and gutters, and touching up any scratches to prevent rust. That’s about it.

Can I add electricity or insulation later? Yes — metal garages can be upgraded with electrical wiring, insulation, HVAC systems, and interior finishing at any time after installation.

What wind and snow ratings do these garages have? Regular roofs typically handle 100–120 mph winds and 20–30 PSF snow loads. A-frame roofs handle 140+ mph winds and 35–50 PSF snow loads. We customize engineering for your specific location.