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30x40x12 Metal Garage

$29,946
Customer rating

This 30x40x12 metal garage gives you 1,200 sq ft of covered space — built for vehicles, tools, and everyday storage. Horizontal
wall panels with wainscoting. (1) steel door 36x80, (2) 24x36 windows, (2) 10x10 roll-up doors.

Key Features & Options

  • Overall Size: 30x40x12
  • Wall Style: Horizontal wall panels with wainscoting
  • Doors & Windows: (1) steel door 36x80, (2) 24x36 windows, (2) 10x10 roll-up doors

Specifications

Dimension Standard Feature Detail
Overall Size 30x40x12 1,200 sq ft
Wall Style Horizontal wall panels with wainscoting Engineered for Michigan snow and wind codes
Doors & Windows (1) steel door 36x80, (2) 24x36 windows, (2) 10x10 roll-up doors As specified for this build

Everything You Need to Know

Construction & Materials
Every steel garage uses heavy-gauge, galvanized steel framing with a baked-on enamel finish that resists rust and fading. Panels are engineered to handle Michigan’s snow load and wind ratings for your specific county
Your quote includes all structural steel, trim, standard door and window openings, and a certified engineering stamp for permitting
We deliver and install on gravel, concrete, or asphalt pads. Our team will confirm site requirements before installation begins.
Every building comes with a manufacturer warranty on materials and workmanship — ask your quote specialist for full details
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Not sure the 30x40x12 Metal Garage is the right fit? Compare it with other popular sizes and styles below — every option is engineer-certified and ready to quote.
Steel building installed in Michigan by Michigan Steel Buildings

30x40x12 Metal Garage

$29,946
Customer rating

Why Choose the 30x40x12 Metal Garage?

A 40x60 metal building strikes the balance most Michigan property owners are looking for — enough square footage for a full workshop or storage, without paying for space you won’t use. Here’s why it’s one of our most-requested sizes.
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Room to Grow

At 2,400 sq ft, a 40x60 building gives you room for a workshop, storage, and vehicle bays all in one structure
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Commercial-Ready

Wide door openings and tall leg heights make this size a popular choice for small businesses and contractors
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Fast Turnaround

Because it’s one of our most-requested sizes, materials are ready to ship faster than a custom configuration.

See What We Build Across Michigan

From open carports to fully enclosed workshops, take a look at real projects completed across the state.

Frequently Asked Questions

Pricing depends on the size, steel gauge, roof style, and any add-ons like insulation, walk-in doors, or windows. Most projects range from a few thousand dollars for a basic carport to well over $20,000 for a fully enclosed, insulated workshop. We provide a full itemized quote before you commit to anything, so there are no surprises.
Most standard carports and garages are installed within a few days to a week once materials arrive on site, depending on size and site preparation. Larger custom buildings or those requiring a poured foundation can take longer. We’ll give you a realistic timeline as part of your quote.
Yes — Michigan winters don’t stop us. Steel buildings and barns can be installed year-round, though site conditions like snow and frozen ground may affect scheduling for foundation work. We’ll walk you through what to expect for your specific project and location.
We install across the entire state, from Southeast Michigan and West Michigan to Mid-Michigan, Northern Michigan, and the Upper Peninsula. See our service areas on the Contact page to find your specific city or region.
Permit requirements vary by township and county — some areas require a permit for any structure over a certain size, while others have different rules for open carports versus enclosed buildings. We help confirm exactly what’s required for your specific location before your project starts, and can guide you through the process.
Yes. We offer flexible financing options so you can get your building now and pay over time, instead of paying the full cost upfront. Terms and approval depend on the size of your project — see our Financing page for details or ask your quote specialist.
Yes. Every structure we install is engineered to meet or exceed Michigan’s snow load and wind rating requirements for your specific county, and comes stamped by a licensed engineer when required for permitting.
Yes — for customers who want to handle their own construction, we offer metal building kits with all the materials and hardware needed. We also offer fully installed options if you’d rather leave the labor to our crews. Either way, you get the same engineer-certified components.
Yes — insulation can be added during the original installation or as a retrofit later on. We offer spray foam and reflective insulation options, both of which help control temperature and reduce condensation inside the building year-round.

Your Steel Building Is One Quote Away

You’ve seen the sizes, the specs, and what’s included — the only thing left is a number. Talk to a Michigan-based specialist and get your free, itemized quote today.