Skip to main content
Garage Buildings

12x21 Metal Buildings

A 12x21 metal building gives you 252 sq. ft. of covered steel space for 1 vehicle, motorcycle, mower, tools, garden equipment, or compact backyard storage starting at just $5000. Garage Buildings can build it as an open carport, partially enclosed shelter, or fully enclosed metal garage, depending on how much coverage and security you need. Choose the roof style, height, colors, trim, doors, windows, anchors, insulation, panel layout, and certified wind or snow options. Each building can be engineered for local code where required, with free delivery and professional installation included. Call now for your 12x21 metal building quote.

Dimensions

12' wide x 21' long

252 sq ft

Get Your Price

Pricing varies by location, wind/snow load, and customizations. Get a free personalized quote.

Financing

Rent-to-own available through our trusted partners EZPay Buildings (exclusive 48-month terms for renters), RTO National, and Heartland (up to 60 months). No credit check required. Available up to $20,000.

Typical Uses

1 car carport
compact garage
motorcycle storage
mower storage
tool storage
garden equipment storage
ATV shelter
backyard storage
utility storage.

Frequently Asked Questions

What sizes do your metal buildings come in?
We offer metal buildings from 12 feet wide all the way up to 60+ feet wide, with virtually unlimited length. Standard widths include 12, 18, 20, 22, 24, 26, 28, 30, 36, 40, 50, and 60 feet. Length can be customized in 5-foot increments. Heights range from 6 to 20 feet at the eave. If you need a non-standard size, our design team can create a custom configuration for you.
How do I figure out what size building I need?
Start with what you plan to store or do inside. For vehicle storage, measure your vehicles and add at least 3 feet on each side for door clearance and walking room. A standard two-car garage is typically 24x30, while a three-car garage starts at 30x30. For workshops, plan for workbench space, tool storage, and room to maneuver around projects. For RVs and boats, measure the vehicle height and add 2-3 feet for clearance. Our building specialists can help you calculate the ideal size — just call (888) 234-0475.
Can I add a lean-to to my building?
Absolutely. Lean-tos are one of our most popular additions. You can add a lean-to on one, two, or three sides of your main structure. They are great for covered parking, extra storage, workshop areas, or livestock shelter. Lean-tos typically range from 8 to 12 feet wide and share the wall of the main structure, saving material costs. You can enclose them fully or leave them open.
What is the tallest building you offer?
Our standard buildings go up to 20 feet at the eave (the lowest point of the roof). With a vertical roof pitch, the peak can be significantly higher. For extra-tall applications like RV storage or commercial use, we commonly build 14-16 foot eave heights. If you need something taller, our engineering team can design a custom solution.

Ready to Build?

Get a free quote on your 12x21 metal building today.

(888) 234-0475Call Now

No Parts • No Repair Service • No Relocation

Call For Instant Quote

No Parts • No Repair Service • No Relocation