1-877-275-7048|Free delivery — 48 states|20-year warranty on 12ga

Most Trusted Storage Solution Provider

 

We’ve provided builds for thousands (and counting) of

satisfied homeowners and businesses.

1-877-275-7048

12×20 Metal Building

900 sq ft — triple wide carport for vehicles or equipment

30′ x 30′ x 10′
14 Gauge
Local Certification Available
This 12×20 prefab metal buildings provides 240 sq ft suited for small garages, tool sheds, hobby workshops, and personal storage. Steel frame with a vertical roof, enclosed steel walls, and full all-weather protection. Customize with extra bays, custom door widths, louvered vents, gutter systems, and premium coatings.
⚠ This product isn't available in . Choose another state or contact us.
Starting From $5,647.00
Base kit with free install. Final price depends on gauge, certifications, doors, and your location. Reservation deposit typically 10-30% based on your state and manufacturer - final balance due after installation is complete.

No card charged online · Specialist calls within 1 business day · 10–20% deposit by phone

20-Year Warranty
Free Install
10-20% Deposit
Financing Available
12′ × 20′
Footprint
240 SF
Floor Space
6′ to 10′
Leg Height
3 Styles
Roof Options
17 Colors
Roof, Wall, Trim
4 to 6 Wks
Lead Time

12×20 Metal Building Specs, Dimensions & Custom Options

At 240 square feet, the 12×20 metal building gives you the extra length needed for a full-size car, mower, motorcycle, ATV, small boat, or deep storage layout while still fitting many residential lots. Spec every option below in our free 3D builder, then lock in your build.

Building Footprint 12′ Wide × 20′ Longwith leg heights of your choice between 6′ and 10′
Total Square Footage 240 square feetof usable interior or covered space
Building Configurations Storage shed, single-car carport, motorcycle cover, garden tool shed, compact workshop, pump house, ATV cover, small boat coverMini Tier
Enclosure Options Open carport, partially enclosed (one or two sides), or fully enclosed storage shed with four walls
Roof Styles Regular Roof (rounded corners, lowest cost), A-Frame Horizontal / Boxed Eave (gabled look), or Vertical Roof (best for snow runoff in winter regions)
Roof Pitch Options Standard 3:12 pitch on every 12×20 build, with 4:12 upgrade available for snow zones
Frame Gauge 14-gauge galvanized steel tubing standard. 12-gauge upgrade is rarely needed at this footprint but available on request
Roof & Wall Panels 29-gauge sheet metal panels standard, 26-gauge upgrade for hail-prone or coastal locations
Door Options Roll-up doors from 6’x6′ to 10’x8′, 32″ or 36″ walk-in doors, and framed openings for windows or vents
Window Options 24″x24″ or 30″x30″ insulated glazing, perfect for a small workshop or pump house with natural light
Color Options 17 colors for roof, walls, and trim independently: Barn Red, Beige, Black, Brown, Burgundy, Burnished Slate, Clay, Galvalume, Green, Patriot Red, Pewter Gray, Quaker Gray, Rawhide Tan, Royal Blue, Sandstone, Slate Blue, White
Wind Rating 90 to 115 MPH wind ratings standard, certified upgrades for hurricane and Tornado Alley zip codes
Snow Load 20 to 35 PSF snow load standard, certified upgrades for mountain and Great Lakes snow regions
Certification Engineered, stamped drawings can be added to any 12×20 if your county requires permits, zoning review, or HOA approval for 240 sq ft structures
Anchoring Concrete wedge anchors, asphalt anchors, mobile-home anchors, or auger ground anchors, included with every order
Free Delivery Included on every orderin the 48 continental US states
Free Installation Included on every tubular-frame 12×20 build. Concrete pad, gravel, or level dirt are all acceptable install surfaces.
Lead Time 4 to 6 weeks from order confirmation. Mini-tier sizes typically ship faster than larger structures.
Installation Time Most 12×20 structures install in a half-day to one-day visit
Warranty 20-year rust-through warranty plus 90-day workmanship guarantee
20
Year
Frame Warranty
Limited + Product Pledge
20
Year
Sheet Metal Warranty
Paint Finish
90
Day
14-Gauge Frame
Workmanship Guarantee
90
Day
12-Gauge Frame
Workmanship Guarantee

12 Practical 12×20 Metal Building Uses (240 Sq Ft Layouts)

A 240 square foot prefab metal building gives you a longer one-car footprint for backyard storage, garden gear, small vehicles, motorcycles, ATVs, or compact hobby space. Pick a use case below to see typical layout and pricing.

What’s Included in a 12×20 Metal Building Kit?

Every 12×20 prefab steel building kit ships with the structural components, fasteners, panels, trim, and anchors required to stand up your structure. Free curbside delivery on every order, free professional installation on tubular configurations.

Free With Every 12×20 Metal Building Order

Everything you need ships free with no hidden fees

  • 14-gauge galvanized steel frame12′ x 20′ footprint with leg height of your choice from 6′ to 10′
  • Choice of 3 roof stylesRegular Roof (rounded), A-Frame Horizontal / Boxed Eave, or Vertical Roof for snow runoff
  • 29-gauge sheet metal panelsRoof and sides in your color choice (1 color or mix-and-match)
  • 17 color optionsPick roof, walls, and trim independently from 17 metal building colors
  • Galvanized purlins, girts, and bracingCold-formed steel secondary framing scaled to 12×20 spans
  • All hardware includedFasteners, color-matched screws, sealing strips, brackets, bolts
  • Painted flashings, trim, ridge capsColor-matched to your panel choices, 20-year paint warranty
  • Foundation-matched anchorsConcrete, asphalt, mobile home, or auger anchors based on your install surface
  • FREE delivery to all 48 statesCurbside delivery to your install address, no hidden freight charges
  • FREE installation on tubular buildingsStandard on tubular-frame 12×20 builds. Most installs complete in a half-day to one day.
  • 20-year rust-through warrantyPlus 90-day workmanship guarantee on labor and assembly

+ Popular 12×20 Building Upgrades & Add-Ons

Optional add-ons to spec your 12×20 prefab building to its intended use

  • Side panel enclosure (open to enclosed)Convert a 12×20 carport into an enclosed storage shed, mini garage, compact workshop, or hobby room
  • 12-gauge frame upgrade (uncommon at this size)Recommended for coastal, high-wind, or heavy-use 240 sq ft installs
  • 26-gauge sheet metal upgradeThicker panels for hail-prone regions and longer paint life
  • Certified / engineered drawingsStamped plans for counties, cities, or HOAs that require permits or drawings for 240 sq ft buildings
  • Higher wind and snow ratingsUp to 150 MPH wind for coastal zones, up to 50 PSF snow load for mountain regions
  • Roll-up garage doors6’x6′, 6’x7′, 7’x7′, 8’x7′, 9’x8′, or 10’x8′ roll-up doors – the right size for one car, motorcycle, ATV, mower, or small boat
  • Walk-in doors and framed openings32″ or 36″ personnel door, ideal as the only entry on a tool shed or pump house
  • Windows (30″x30″ or custom)24″x24″ or 30″x30″ insulated glass for daylight without heat loss
  • Insulation packagesSingle-bubble or double-bubble radiant insulation; spray foam for full enclosures
  • Wainscoting (two-tone walls)Two-tone wainscoting brings the 12×20 in line with the home or main barn
  • Lean-to additionsAdd a 4′ or 6′ lean-to for firewood storage or a rain-protected entry
  • Taller leg heights (up to 10′)For full-size pickup parking or stacked storage shelving

Customize & Build Your 12×20 Metal Building Online

Every option below is selectable in our free 3D builder. The 12×20 footprint stays fixed. Roof style, leg height, gauge, doors, colors, insulation, and finishes are yours to choose.

Leg Height (6′ to 10′)

On a 12×20, leg height runs 6′ to 10′. Open carports start at 6′ to 8′. Storage sheds and tool sheds work best at 7′ to 9′. Choose 10′ if you plan to park a pickup, add taller shelving, or use a larger roll-up door.

3 Roof Styles

Three roof choices on every 12×20 build. Regular Roof has rounded corners and horizontal panels, the lowest cost option. A-Frame Horizontal (Boxed Eave) gives a classic peaked roofline at a small premium. Vertical Roof routes water and snow straight off the eaves, recommended in any snow region.

Roof Pitch & Slope

Standard 3:12 roof pitch on every 12×20. Upgrade to 4:12 pitch for snow zones or steeper aesthetics that match your house roofline. Cool roof coatings reduce attic-style heat in summer for hobby or office use.

Frame Gauge (14 or 12)

14-gauge galvanized steel tubing comes standard on every 12×20. The 12-gauge upgrade adds 33 percent more wall thickness and is rarely needed at this footprint, but available for coastal installs or buyers who want maximum frame life.

Sheet Metal Gauge (29 or 26)

29-gauge sheet metal panels are standard for the 12×20 roof and walls. Upgrade to 26-gauge in hail-prone regions, on coastal zip codes with salt exposure, or when you want the longest possible paint life on a small visible structure.

Certification & Engineering

Permit rules vary for 240 sq ft accessory structures. Many counties require permits once a building exceeds 200 sq ft, while others allow compact sheds or carports with simple zoning approval. Some require stamped engineered drawings even at this size. We can wet-stamp a 12×20 to your local IBC, IRC, NEC, IFGC, IECC, and IMC requirements when needed.

Roll-Up Garage Doors

Roll-up doors from 6’x6′ to 10’x8′ available on the 12×20. Standard pick is a 6’x6′ for motorcycles or storage, 7’x7′ for a small car, and 8’x7′ or 9’x8′ for larger mower or compact-vehicle access.

Walk-In Doors

32″ or 36″ walk-in doors with full frames, weatherstripping, and locksets. On a 12×20 storage shed, the walk-in is often the only entry. Insulated and non-insulated options for outdoor exposure.

Hydraulic & Rapid Doors

Hydraulic and rapid-roll doors are typically not specified on a 12×20 since this footprint is normally residential, agricultural, or light-duty commercial. The standard residential roll-up handles every typical 240 sq ft application.

Windows & Skylights

24″x24″ or 30″x30″ insulated glazing standard. One window works for basic storage; two windows brighten a 12×20 hobby studio or backyard office without sacrificing too much wall storage. Storefront-style fixed glazing is available on request.

Framed Openings

Order framed openings now to skip cutting later. Useful for a planned future window upgrade, a wall-mount HVAC unit, or a chicken-coop access flap. Sized to your spec.

Garage Door Openers & Windows

Chain-drive openers fit the 6’x6′ or 7’x7′ roll-ups typical on a 12×20. Smart Wi-Fi openers are available for owners who want app control. Window kits inside roll-up doors add daylight without sacrificing security.

17 Standard Color Options

All 17 standard color options are available on the 12×20: Barn Red, Beige, Black, Brown, Burgundy, Burnished Slate, Clay, Galvalume, Green, Patriot Red, Pewter Gray, Quaker Gray, Rawhide Tan, Royal Blue, Sandstone, Slate Blue, and White.

Mix-and-Match Roof, Walls, Trim

Pick a different color for roof, wall panels, and trim. On a 12×20, popular pairings include White walls with Barn Red roof for a backyard barn look, or Pewter Gray walls with Black trim for a clean modern shed.

Wainscoting (Two-Tone Walls)

Wainscoting on a 12×20 means lower 3′ of wall in a contrasting color. Brings curb appeal to a small structure and helps it visually tie into a larger property barn or home siding.

Galvalume (Bare Metal Finish)

Galvalume is a hot-dipped aluminum-zinc coating with no paint. The cheapest finish on a 12×20, it weathers to a soft gray and blends into rural and industrial settings. Maximum corrosion resistance at the lowest material cost.

Painted Trim & Flashings

Color-matched ridge caps, eave trim, and corner trim ship with every 12×20. All hardware including color-coded screws matches your panel choice. The 20-year paint warranty covers the entire painted surface area.

Custom Color Match

Need to match an existing house siding, HOA color requirement, or main barn? Custom paint matching is available for a small upcharge. Ask your building advisor for a color sample card before ordering.

Insulation Options

Single-bubble radiant barrier is the lightest option for a 12×20, ideal for an unheated tool shed or carport enclosure. Double-bubble adds R-value for hobby studios. Spray foam delivers the highest R-value if you’ll heat or cool the 240 sq ft year-round.

Lean-To Additions

A 4-foot or 6-foot lean-to on the side of a 12×20 doubles as covered firewood storage, a rain-protected entry, or extra mower and equipment cover. Lean-tos add square footage without enlarging the main building footprint.

Mezzanines & Lofts

Mezzanines on a 12×20 are uncommon but feasible with taller leg heights. More typical is a partial loft for boxed seasonal storage above the main floor, accessed by a ladder rather than stairs.

Interior Partitions

Interior partitions inside 240 sq ft are possible for a small office nook, supply closet, or tool cage, but most owners keep the layout open for flexibility. Most owners keep the 12×20 open for flexibility. If you do partition, steel-stud walls can carve off a small mechanical or supply closet.

Trim, Anchors, Gables

Decorative trim around the door, corners, and roofline gives the 12×20 a finished, intentional look. Different trim color adds contrast. Decorative gables work especially well on the entry-side of a backyard build.

Flooring Prep

We don’t pour foundations, but we’ll guide you on the right slab spec. For a 12×20, gravel base ($150-$400) works for storage, packed dirt is acceptable for simple carports, and a 4″ concrete pad ($1,000-$2,000) is the gold standard for enclosed garages, workshops, and hobby studios.

Wind & Snow Certification

Standard 90 to 115 MPH wind and 20 to 35 PSF snow load on every 12×20. Certified upgrades available up to 150 MPH for coastal zones and 50 PSF for mountain or Great Lakes snow regions.

Permit-Ready Drawings

Stamped engineered drawings, foundation plans, and code calculations meeting IBC, IRC, NEC, IFGC, IECC, and IMC requirements. Many counties require permits above 200 sq ft, so stamped plans are available when you need them.

Door Locks & Access Control

Slide bolts and deadbolts come standard on walk-in doors. Keypad and smart locks are available for the 12×20 if it stores valuables, tools, or pool chemicals. Wi-Fi roll-up openers are an option on tool shed conversions.

Fire Safety & Alarms

A compact 12×20 typically does not require sprinklers. Class ABC fire extinguishers can be wall-mounted, and smoke or heat detectors are recommended if the shed houses lawn equipment with fuel.

Anchoring System

Concrete wedge anchors for slab installs, asphalt anchors for paved lots, mobile-home anchors for installation on existing pads, or auger ground anchors for grass and dirt. All anchor types are included in the 12×20 base price.

Solar & Roof-Top Loads

A 12×20 roof can support a small solar array, satellite dish, or light rooftop equipment when properly engineered. Reinforced roof framing is available if you plan to add solar later.

12×20 Metal Building Codes, Permits & Engineering

Every 12×20 prefab steel building can be engineered, stamped, and certified to meet local building codes. Permit rules vary for 240 sq ft accessory structures. We provide stamped drawings when your jurisdiction requires them.

IBC/IRC
Minimum construction standards for building codes
NEC
Electrical safety to reduce fire and shock risk
IFGC
Safe operation of fuel gas appliances and equipment
IECC
Energy efficiency and conservation requirements
IMC
HVAC, ventilation, and exhaust system standards

We also follow plumbing codes, energy conservation standards, and any state or local requirements. Our team handles code compliance for 240 sq ft buildings when your county, city, or HOA requires it.

How to Maintain a 12×20 Metal Building

Quarterly upkeep on a 12×20 takes about 20 to 30 minutes. Seasonal attention keeps your 240 sq ft prefab steel building structurally sound, weather-tight, and looking sharp for decades.

1
Clean Roofing & Siding
Sweep the roof and rinse the panels twice a year with a garden hose. On a 12×20, a soft broom and step ladder reach most areas. Removes pollen, leaf litter, and bird droppings before they corrode finishes.
2
Inspect Caulking & Seals
Inspect the silicone caulking around the walk-in door, roll-up door, and any windows once per season. A compact 12×20 has limited seal area, so a quick walk-around catches most issues early.
3
Check Connections
Tighten anchor bolts and door fasteners after the first winter and every other year afterward. On a 12×20, check exposed panel screws, hinges, latches, and roll-up tracks for movement.
4
Touch Up Paint & Coatings
Touch up scratches with the matching paint pen included in your warranty kit. Mowers, bikes, trailers, and yard tools most often scuff the lower wall panels and door frames.
5
Lubricate Doors & Locks
Add a drop of light machine oil to walk-in door hinges, lock cylinders, roll-up rollers, and tracks twice a year to keep the 12×20 operating smoothly through seasonal weather changes.
6
Gutter & Pest Control
Gutters are optional on many 12×20 structures. Check drip lines for erosion, clear debris near the base, and watch for wasps under eaves or rodents inside if the building stores feed, seed, or pet supplies.

What Can You Do with 240 Square Feet?

A 12×20 metal building gives you a longer single-vehicle footprint for storage, hobbies, equipment, garden gear, small boats, and backyard utility use

Backyard Storage

Store tools, bins, ladders, garden supplies, pool gear, and seasonal items in a lockable steel structure

Small Workshop

Use the 20-foot depth for a workbench, pegboard wall, small saw station, tool storage, and a clear center aisle

Pump House

Protect well pumps, pressure tanks, controls, and backup equipment from weather, freeze, and wildlife

Backyard Office

Create a quiet detached office or study annex with room for a desk, chair, shelves, printer, and one or two windows

Roll-Up Door Access

Add a 7’x7′, 8’x7′, 9’x8′, or 10’x8′ roll-up door for motorcycle, ATV, mower, compact vehicle, or small boat access

Hobby Studio

Use 240 sq ft for painting, yoga, crafting, podcasting, model building, music, or focused creative space

Small Animal Shelter

Shelter chickens, goats, rabbits, feed, tack, or small farm supplies with galvanized steel protection

Lawn Equipment Cover

Cover mowers, snowblowers, bicycles, ATVs, trailers, and yard equipment without moving up to a full two-car building

3 Ways to Order Your 12×20 Metal Building

Customize a 12×20 in our free 3D builder, request a free custom quote, or talk directly with a building expert. Reservation deposits stay flexible, balance due after install.

Request Free 12×20 Quote

Free custom design, reply within 24 hours

Tell us your requirements and our 12×20 building advisors will design and price your custom steel building for free. Best path if you’re comparing a long carport, storage shed, mini garage, workshop, or enclosed configuration.

  • Free expert design consultation
  • Permit and certification handled for you
  • Custom layout and engineered drawings
  • Quote delivered within 1 business day

Get My Free 12×20 Quote →

Free quote. Flexible deposit to reserve after approval.

Talk to a 12×20 Building Expert

Fastest answers, call or chat now

Speak directly with a building advisor who specializes in compact metal structures. Get pricing, permit guidance, configuration help, and customization advice in a single phone call. Toll-free, no obligation.

  • Instant answers over the phone
  • Expert advice on permits, codes, and sizing
  • Walk-through of customization options
  • Mon to Fri 8am to 6pm PST, Sat 9am to 3pm

📞 Call 1-877-275-7048 →

Toll-free. Speak with an expert now.

How the 3D Builder Works

Design your ideal 12×20 metal building in minutes

Choose structure icon

1. Launch Builder

Open the builder in a new tab so you can keep this page available while designing.

Customize icon

2. Configure Your Building

Set size, roof style, certification, colors, doors, side panels, and other custom options.

Save icon

3. Save Your Design

Copy your configuration code or summary before returning to this product page.

Order icon

4. Complete Your Request

Send us your final configuration and we will confirm pricing, scheduling, and installation details.

Ready to design your custom 12×20 metal building?

Open 3D Building Builder

Tip:Keep this page open so you can return and submit your final configuration with ease.

How Much Does a 12×20 Metal Building Cost?

No hidden fees on any 12×20 prefab steel building. A 12×20 metal carport starts around $2,795, an enclosed storage shed or tool shed from $4,295, and a fully outfitted hobby studio, mini garage, or backyard office with insulation and windows can reach around $7,295.

Building Configuration

A 12×20 carport is the lowest entry point. Adding side panels to enclose for storage adds wall material and a walk-in door. The longer footprint costs more than a 12×16 but gives better one-car coverage and deeper storage.

Your Location

Delivery distance from the regional manufacturing plant and your state-specific anchor requirements affect the final 12×20 price. Some states require additional anchoring on longer light-frame structures in tornado or coastal zones.

Steel Gauge

14-gauge galvanized tubing comes standard on the 12×20. The 12-gauge upgrade adds cost but is recommended for coastal zip codes, higher wind ratings, frequent commercial use, or buyers who want the strongest compact frame option.

Roof Style & Pitch

Regular Roof is the cheapest. A-Frame Horizontal adds curb appeal at a small premium. Vertical Roof costs slightly more but is recommended for any snow or heavy-rain region because it sheds water off the eaves.

Certification

Certified buildings with stamped engineered drawings cost more. Stamped plans become worth the upcharge if your HOA requires drawings, you live in a tornado or hurricane zone, or your county is unusually strict.

Doors, Windows, Insulation

Each roll-up door, walk-in door, window, and insulation package adds to the 12×20 price. Most storage sheds use one walk-in door, while a carport-to-garage conversion adds one roll-up. Insulation upgrades vary $400 to $1,100 depending on R-value.

12×20 Metal Building Complete Price Range

$2,795to$7,295

Range covers an open carport at the low end through a fully enclosed insulated hobby studio, mini garage, or backyard office with 26-gauge panels, double-bubble insulation, walk-in door, window, roll-up access, and stamped engineered drawings.

Get My Free 12×20 Custom Quote →

20+ Years
In Business Since 2002
A+ BBB
Accredited Since 2009
48 States
Nationwide Coverage
1000s
Buildings Installed
4.8/5
Average Rating

Flexible Financing & Rent-To-Own

Choose the payment path that fits your project and budget

Traditional Financing

Credit Check Required

  • Finance your metal building project
  • Structured monthly payment options
  • Terms based on lender approval
  • Fast online application process
  • Ownership from day one

Check Eligibility

Rent-To-Own (RTO)

No Credit Check

  • No credit check required
  • Simple approval process
  • Low upfront commitment
  • Convenient monthly payments
  • Great for many standard metal structures

Apply for RTO

How Delivery & Installation Works

A simple step-by-step process for getting your 12×20 metal building installed

Order icon

Place Your Order

Submit your request for the 12×20 configuration and confirm colors, doors, certification, and site details.

Step 1

Manufacturing icon

Production Scheduling

Your order is scheduled according to manufacturing capacity and your configured metal building requirements.

Step 2

Scheduling icon

Prepare the Site

Make sure your jobsite is level and accessible before the install team arrives. Concrete, gravel, asphalt, or level dirt can work for most 12×20 builds.

Step 3

Installation icon

Installation Day

Our crew installs the 12×20 metal building and verifies the final layout, door placement, anchoring, and exterior finish details.

Step 4

12×20 Metal Building Reviews from Verified Buyers

Homeowners, hobbyists, and small-property owners across 48 states have ordered a 12×20 from Steel And Stud as a long carport, storage shed, mini garage, equipment cover, or backyard studio. A few of their stories below.

★★★★★

“We chose the 12×20 because it was long enough for the mower, bikes, camping bins, and a small trailer. The extra depth made all the difference compared with the smaller shed sizes. The install crew had it done before lunch.”

KM
Kevin M.
Boise, Idaho • 12×20 Storage Shed
✓ Verified Purchase
★★★★★

“Ordered a 12×20 carport for my side-by-side, lawn tractor, and small boat trailer. We added one side panel for wind protection and it has held up great through spring storms. Much cleaner than the old tarp setup.”

BR
Brandon R.
Knoxville, Tennessee • 12×20 Carport
✓ Verified Purchase
★★★★★

“Our 12×20 became a small art and sewing studio with a storage wall at the back. We added insulation, one walk-in door, and two windows. It feels like a real room but still fits perfectly in the backyard corner.”

AL
Angela L.
Madison, Wisconsin • 12×20 Hobby Studio
✓ Verified Purchase

Compare 12×20 vs. Other Metal Building Sizes

Need a smaller or larger footprint? Compare prices and customize any of these prefab steel building sizes in our free 3D builder. Every order ships free to 48 states.

Feature 12×16 Building 12×20 Building 12×24 Building 16×20 Building
Square Footage 192 SF 288 SF 320 SF
Use Capacity Extra storage depth SUV or pickup carport 1-car + storage
Access Potential Good Very Good Very Good
Roof Style Customizable Customizable Customizable
Best For Storage shed and compact workshop Long vehicle cover Compact garage
View 12×16 Price 12×24 View 16×20

12×20 Metal Building FAQ: Cost, Permits, Sizes & Install

Answers on pricing, configurations, leg heights, roof styles, colors, permit requirements, foundations, and load ratings for the 240 sq ft 12×20 prefab steel building.

A 12×20 metal building costs between $2,795 and $7,295 depending on configuration. An open 12×20 carport starts around $2,795. A fully enclosed storage shed runs from about $4,295. A hobby studio, mini garage, or backyard office with insulation, a walk-in door, windows, and upgraded panels can reach $5,995 to $7,295. Use our 3D builder to price your exact spec.

A 240 sq ft 12×20 prefab steel building works as a backyard storage shed, garden tool shed, motorcycle or ATV cover, single-car carport, small boat cover, lawn equipment shelter, compact workshop, chicken coop, pump or well house, tack room, bike shed, or private hobby studio. It is a good upgrade from a 12×16 if you need extra length for a vehicle or deeper storage.

Leg heights for a 12×20 steel building range from 6 feet up to 10 feet. Carports work well at 6 to 8 feet for motorcycles, compact cars, and zero-turn mowers. Storage sheds and tool sheds typically use 7 to 9 feet to allow shelving inside. Choose 10 feet if you’ll park a taller pickup or store stacked items along the wall.

Three roof styles ship on every 12×20 build. Regular Roof has rounded corners, horizontal panels, and is the most affordable option, popular for storage. A-Frame Horizontal or Boxed Eave gives a peaked roofline that matches a residential aesthetic. Vertical Roof routes water and snow off the eaves and is recommended in any region with snowfall or heavy rain.

Choose from 17 standard colors for the 12×20 roof, walls, and trim independently: Barn Red, Beige, Black, Brown, Burgundy, Burnished Slate, Clay, Galvalume, Green, Patriot Red, Pewter Gray, Quaker Gray, Rawhide Tan, Royal Blue, Sandstone, Slate Blue, and White. Custom paint matching is available for HOA or property color requirements.

Permit requirements vary by county, city, and HOA. A 12×20 is 240 sq ft, so many jurisdictions require a permit once the structure exceeds 200 sq ft, while others treat it as a compact accessory structure with simpler approval. Some HOAs and a handful of strict municipalities require stamped drawings even at this size. We provide engineered, wet-stamped plans whenever your local jurisdiction asks for them. Call 1-877-275-7048 to confirm your specific zoning.

Yes. Free curbside delivery is included on every 12×20 order in 48 contiguous states. Free professional installation is included on every tubular-frame 12×20. Most installs complete in a half-day to one day. The site needs to be level dirt, gravel, asphalt, or concrete, and accessible to a delivery truck.

A 12×20 prefab steel building installs on concrete, asphalt, gravel, or level dirt. Concrete pads provide the most stable foundation and are recommended if you plan to enclose the structure, insulate it, or use it as a workshop or studio. Gravel is fine for storage and carports. Packed dirt is acceptable for short-term or mobile installs. We supply the right anchor type for whichever surface you choose.

Standard 12×20 steel buildings rate for 90 to 115 MPH winds and 20 to 35 PSF snow load. Certified upgrades engineer the structure for higher ratings, including 150 MPH winds for coastal zones and 50 PSF snow load for mountain or Great Lakes regions. Mini-tier sizes are not typically rated for hurricane zones above 150 MPH.

A 12×20 is not designed for heavy industrial equipment. The 240 sq ft footprint suits hand tools, garden equipment, motorcycles, ATVs, mowers, bicycles, compact shop tools, small trailers, and personal project equipment. If you need to house a tractor, skid steer, or commercial machinery, look at the 20×30 or larger sizes. Our advisors can recommend the right footprint at 1-877-275-7048.

Our 12×20 metal buildings can comply with IBC and IRC Building Codes, NEC Electrical Code, IFGC Fuel Gas Code, International Energy Conservation Code (IECC), and International Mechanical Code (IMC) when a certified build is required. State plumbing codes apply when relevant. Full code-stamped builds are available on request.

Request Your Custom Design & Quote

Tell us about your project and we’ll provide a custom design with exact pricing. No obligation, no pressure just helpful information to guide your decision.

1
Submit Your Info Fill out the form with your requirements and preferences.
2
Get Your Quote We'll email your custom design and pricing within 1 business day.
3
Review & Decide Ask questions, make changes, or proceed when you're ready.
FREE • NO-OBLIGATION QUOTE

Get Your Free Custom Building Quote

Tell us what you need and a building specialist will send your custom pricing — usually within 1 business day. No payment required.

✓ Free delivery & install✓ 20-year warranty✓ Engineer-certified

🔒 A specialist calls within 1 business day. We never share your details.

View Cart