16×20 Metal Building
900 sq ft — triple wide carport for vehicles or equipment
14 Gauge
Local Certification Available
No card charged online · Specialist calls within 1 business day · 10–20% deposit by phone
16×20 Metal Building Specs, Dimensions & Custom Options
At 320 square feet, a 16×20 metal building is a practical mid-size steel structure for backyard storage, single-car garages, workshops, equipment covers, hobby rooms, and small farm utility use. Spec every option below in our free 3D builder, then lock in your build.
| Building Footprint | 16′ Wide × 20′ Longwith leg heights of your choice between 7′ and 12′ |
|---|---|
| Total Square Footage | 320 square feet of usable interior or covered space |
| Building Configurations | Single-car garage, metal carport, workshop, backyard storage shed, motorcycle garage, garden building, ATV cover, small farm shelterCompact Tier |
| Enclosure Options | Open carport, partially enclosed, three-sided shelter, or fully enclosed garage/storage building with four walls |
| Roof Styles | Regular Roof (rounded corners, lowest cost), A-Frame Horizontal / Boxed Eave (gabled look), or Vertical Roof (best for snow and rain runoff) |
| Roof Pitch Options | Standard 3:12 pitch on most 16×20 builds, with 4:12 upgrade available for snow zones or steeper residential aesthetics |
| Frame Gauge | 14-gauge galvanized steel tubing standard. 12-gauge upgrade available for high-wind regions, heavier-duty workshops, or longer frame life |
| Roof & Wall Panels | 29-gauge sheet metal panels standard, 26-gauge upgrade for hail-prone, coastal, or higher-wear locations |
| Door Options | Roll-up doors from 6’x6′ to 9’x8′, 32″ or 36″ walk-in doors, framed openings for windows, vents, or future HVAC |
| Window Options | 24″x24″, 30″x30″, or 36″x36″ insulated glazing, ideal for a compact workshop, hobby room, or storage garage 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 available for coastal, hurricane-prone, and Tornado Alley zip codes |
| Snow Load | 20 to 35 PSF snow load standard, certified upgrades available for mountain, northern, and Great Lakes snow regions |
| Certification | Engineered, stamped drawings can be added to any 16×20 if your county, HOA, or municipality requires permits |
| Anchoring | Concrete wedge anchors, asphalt anchors, mobile-home anchors, or auger ground anchors, included with every order |
| Free Delivery | Included on every order in the 48 continental US states |
| Free Installation | Included on every tubular-frame 16×20 build. Concrete pad, gravel, asphalt, or level dirt are all acceptable install surfaces. |
| Lead Time | 4 to 6 weeks from order confirmation. Compact sizes often schedule faster than larger commercial structures. |
| Installation Time | Most 16×20 structures install in one day depending on enclosure level and door package |
| Warranty | 20-year rust-through warranty plus 90-day workmanship guarantee |
Limited + Product Pledge
Paint Finish
Workmanship Guarantee
Workmanship Guarantee
10 Practical 16×20 Metal Building Uses (320 Sq Ft Layouts)
A 320 square foot prefab metal building is a strong fit for homeowners who need more than a small shed but do not need a full-size commercial structure. Pick a use case below to see typical layout and pricing.
16×20 Single-Car Garage
A practical 320 sq ft garage for one car, motorcycle, ATV, bicycles, and wall-mounted storage. Add an 8’x7′ roll-up door, one walk-in door, and a window for everyday access.
16×20 Backyard Workshop
Enough space for a workbench, pegboard wall, tool chest, small table saw, mower storage, and weekend project layout. Insulation-ready framing makes it easy to upgrade for year-round use.
16×20 Metal Carport
Affordable open-side shelter for one car, motorcycle, compact tractor, boat, ATV, or lawn equipment. Add side panels later if you decide to enclose it as a garage or storage shed.
16×20 Tool Shed / Storage Building
Lockable steel storage for mowers, garden tools, pool supplies, bikes, bins, holiday decorations, and outdoor equipment. Replaces a wood shed with a weather-resistant steel structure.
16×20 Lawn Equipment Cover
Open or partially enclosed shelter for riding mowers, garden tractors, snowblowers, push mowers, and small trailers. Keeps weather off engines, seats, and attachments.
16×20 Hobby Studio
A private backyard studio for yoga, painting, podcasting, crafts, music practice, or remote-work overflow. Add insulation, one or two windows, and a walk-in door for comfort.
16×20 Small Animal Shelter
Compact agricultural shelter for goats, sheep, poultry, rabbits, feed, tack, or a small livestock pen. Galvanized steel framing resists rot and weather better than wood.
16×20 She Shed / Backyard Retreat
A comfortable backyard getaway for reading, crafting, fitness, or private office use. The 320 sq ft footprint gives you room for furniture, shelving, and work surfaces.
16×20 Pump House / Utility Building
Insulated steel housing for well pumps, pressure tanks, water softeners, septic controls, filters, pool equipment, and utility storage with lockable access.
16×20 Bike & Gear Shed
Secure storage for bicycles, e-bikes, scooters, kayaks, surfboards, skis, camping gear, and sports equipment. Hooks, racks, and shelving work well inside the steel frame.
Not sure which 16×20 metal building configuration suits your project? Our building advisors design it free.
What’s Included in a 16×20 Metal Building Kit?
Every 16×20 prefab steel building kit ships with the structural components, fasteners, trim, anchors, and hardware required to stand up your structure. Free curbside delivery on every order, free professional installation on tubular configurations.
Free With Every 16×20 Metal Building Order
Everything you need ships free with no hidden fees
- 14-gauge galvanized steel frame16′ x 20′ footprint with leg height of your choice from 7′ to 12′
- Choice of 3 roof stylesRegular Roof, A-Frame Horizontal / Boxed Eave, or Vertical Roof for snow and rain runoff
- 29-gauge sheet metal panelsRoof and sides in your color choice, with mix-and-match options
- 17 color optionsPick roof, walls, and trim independently from 17 metal building colors
- Galvanized purlins, girts, and bracingCold-formed steel secondary framing scaled to 16×20 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 16×20 builds. Most installs complete in one day.
- 20-year rust-through warrantyPlus 90-day workmanship guarantee on labor and assembly
+ Popular 16×20 Building Upgrades & Add-Ons
Optional add-ons to spec your 16×20 prefab building to its intended use
- Side panel enclosureConvert a 16×20 carport into an enclosed garage, workshop, or storage building
- 12-gauge frame upgradeAdded wall thickness for high-wind regions, workshops, and buyers who want maximum frame life
- 26-gauge sheet metal upgradeThicker panels for hail-prone regions and longer paint life
- Certified / engineered drawingsStamped plans for counties, HOAs, or municipalities that require permits
- 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′, 7’x7′, 8’x7′, 8’x8′, or 9’x8′ roll-up doors for vehicle, mower, or ATV access
- Walk-in doors and framed openings32″ or 36″ personnel door, framed window openings, vents, or HVAC penetrations
- Windows24″x24″, 30″x30″, or 36″x36″ insulated glass for daylight and ventilation
- Insulation packagesSingle-bubble, double-bubble, fiberglass, or spray foam for full enclosures
- WainscotingTwo-tone lower wall panels help the 16×20 match a home, garage, or barn exterior
- Lean-to additionsAdd a 4′, 6′, or 8′ lean-to for firewood, mower, trailer, or covered entry storage
- Taller leg heightsUp to 12′ standard for taller equipment, overhead shelves, or small boat storage
Customize & Build Your 16×20 Metal Building Online
Every option below is selectable in our free 3D builder. The 16×20 footprint stays fixed. Roof style, leg height, gauge, doors, colors, enclosure, and finishes are yours to choose.
Leg Height (7′ to 12′)
On a 16×20, leg height runs 7′ to 12′. Open carports work well at 7′ to 8′. Storage buildings and garages commonly use 8′ to 10′. Choose 11′ or 12′ if you plan to store taller equipment, a small boat, or overhead shelving.
3 Roof Styles
Three roof choices are available on every 16×20 build. Regular Roof has rounded corners and horizontal panels at the lowest cost. A-Frame Horizontal (Boxed Eave) gives a classic peaked roofline. Vertical Roof routes water and snow straight off the eaves and is recommended in wet or snowy regions.
Roof Pitch & Slope
Standard 3:12 roof pitch on most 16×20 buildings. Upgrade to 4:12 pitch for snow zones or steeper aesthetics that match your house roofline. Cool roof coatings reduce heat buildup in summer for hobby and workshop use.
Frame Gauge (14 or 12)
14-gauge galvanized steel tubing comes standard on every 16×20. The 12-gauge upgrade adds more wall thickness and is recommended for high-wind areas, commercial-style storage, or buyers who want added strength.
Sheet Metal Gauge (29 or 26)
29-gauge sheet metal panels are standard for the 16×20 roof and walls. Upgrade to 26-gauge in hail-prone regions, coastal zip codes with salt exposure, or when you want a thicker exterior skin.
Certification & Engineering
Many counties require permits once a building exceeds small-shed size. We can wet-stamp a 16×20 to your local IBC, IRC, NEC, IFGC, IECC, and IMC requirements when your jurisdiction asks for engineered drawings.
Roll-Up Garage Doors
Roll-up doors from 6’x6′ to 9’x8′ are available on the 16×20. A common garage layout uses one 8’x7′ or 9’x8′ roll-up door. Workshop layouts often add a second smaller door or a walk-in entrance.
Walk-In Doors
32″ or 36″ walk-in doors with full frames, weatherstripping, and locksets. On a 16×20 storage building, the walk-in door is ideal for daily access while the roll-up handles equipment or vehicle entry.
Hydraulic & Rapid Doors
Hydraulic and rapid-roll doors are rarely specified on a 16×20 because the footprint is compact. Standard residential roll-up doors handle most garage, workshop, and equipment storage applications.
Windows & Skylights
24″x24″, 30″x30″, or 36″x36″ insulated glazing is available. One or two windows brighten a 16×20 workshop or hobby room without sacrificing too much wall storage.
Framed Openings
Order framed openings now to skip cutting later. Useful for future windows, vents, wall-mount HVAC, exhaust fans, or a pet and animal access flap.
Garage Door Openers & Windows
Chain-drive or smart Wi-Fi openers fit the roll-up doors commonly used on a 16×20. Window kits inside roll-up doors add daylight without sacrificing security.
17 Standard Color Options
All 17 standard color options are available on the 16×20: 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 16×20, popular pairings include White walls with Barn Red roof for a backyard barn look, or Pewter Gray walls with Black trim for a clean garage finish.
Wainscoting (Two-Tone Walls)
Wainscoting on a 16×20 means the lower wall panels are finished in a contrasting color. It adds curb appeal and helps the building visually tie into a house, barn, or existing detached garage.
Galvalume (Bare Metal Finish)
Galvalume is a hot-dipped aluminum-zinc coating with no paint. It is a budget-friendly finish that weathers to a soft gray and blends into rural, industrial, and utility settings.
Painted Trim & Flashings
Color-matched ridge caps, eave trim, and corner trim ship with every 16×20. All hardware including color-coded screws matches your panel choice. The 20-year paint warranty covers the painted surface area.
Custom Color Match
Need to match existing siding, HOA color requirements, or a 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 a simple option for an unheated 16×20 storage building. Double-bubble adds condensation control and improved comfort. Spray foam or fiberglass insulation works best for year-round workshop or studio use.
Lean-To Additions
A 4-foot, 6-foot, or 8-foot lean-to on the side of a 16×20 adds covered firewood storage, mower parking, a rain-protected entry, or an outdoor work area without expanding the enclosed footprint.
Mezzanines & Lofts
Mezzanines are uncommon at this footprint but a small loft shelf or overhead storage platform can work with taller leg heights. Most 16×20 buyers use wall shelves and ceiling-mounted storage racks.
Interior Partitions
Interior partitions can divide the 320 sq ft into a storage zone and a small work area. Most owners keep the floor open for vehicle access, benches, tools, and shelving flexibility.
Trim, Anchors, Gables
Decorative trim around the door, corners, and roofline gives the 16×20 a finished look. Different trim color adds contrast, and decorative gables work well on the front entry side.
Flooring Prep
We don’t pour foundations, but we’ll guide you on the right slab spec. For a 16×20, gravel works for basic storage and carports, while a 4″ concrete pad is recommended for enclosed garages, workshops, and studios.
Wind & Snow Certification
Standard 90 to 115 MPH wind and 20 to 35 PSF snow load on most 16×20 builds. Certified upgrades are 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. Permit-ready drawings are available when your county requires them.
Door Locks & Access Control
Slide bolts and deadbolts come standard on many walk-in doors. Keypad locks, smart locks, and Wi-Fi roll-up openers are available if the 16×20 stores valuables, tools, or vehicles.
Fire Safety & Alarms
Class ABC fire extinguishers can be wall-mounted, and smoke or heat detectors are recommended if the 16×20 houses fuel, equipment, batteries, or workshop tools.
Anchoring System
Concrete wedge anchors for slab installs, asphalt anchors for paved lots, mobile-home anchors for existing pads, or auger ground anchors for grass, dirt, and gravel. Anchors are included with your build.
Solar & Roof-Top Loads
A 16×20 roof can support small solar arrays, vents, skylights, or rooftop accessories when properly engineered. Reinforced roof framing is available if you plan to add solar later.
16×20 Metal Building Codes, Permits & Engineering
Every 16×20 prefab steel building can be engineered, stamped, and certified to meet local building codes. Some counties allow this size as an accessory structure, while others require permits, setbacks, foundation details, or stamped drawings.
We also follow plumbing codes, energy conservation standards, and any state or local requirements. Our team handles code compliance even on compact 320 sq ft metal buildings.
How to Maintain a 16×20 Metal Building
Quarterly upkeep on a 16×20 takes about 20 to 30 minutes. Seasonal attention keeps your 320 sq ft prefab steel building structurally sound, weather-tight, and looking sharp for decades.
What Can You Do with 320 Square Feet?
A 16×20 metal building gives you practical covered space for parking, storage, hobbies, equipment, garden gear, and backyard utility use
Single-Car Garage
Park one vehicle with room for tools, wall storage, bikes, and seasonal bins
Small Workshop
Use the compact layout for a workbench, pegboard wall, tool chest, and project space
Utility Building
Protect well pumps, pressure tanks, water systems, and outdoor utility equipment
Backyard Office
Create a detached office, study annex, or small business storage space with insulation
Roll-Up Door Access
Add an 8’x7′ or 9’x8′ roll-up door for vehicle, mower, ATV, or trailer access
Hobby Studio
Use 320 sq ft for painting, fitness, crafting, podcasting, or focused creative work
Small Farm Shelter
Shelter feed, tack, goats, poultry, rabbits, compact implements, or ranch supplies
Lawn Equipment Cover
Cover mowers, snowblowers, bicycles, ATVs, garden tractors, and yard equipment
3 Ways to Order Your 16×20 Metal Building
Customize a 16×20 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 16×20 Quote
Free custom design, reply within 24 hours
Tell us your requirements and our 16×20 building advisors will design and price your custom steel building for free. Best path if you’re comparing garage, carport, workshop, storage, or enclosed configurations.
- Free expert design consultation
- Permit and certification handled for you
- Custom layout and engineered drawings
- Quote delivered within 1 business day
Free quote. Flexible deposit to reserve after approval.
Build Your 16×20 in 3D
Design your 16×20 yourself, see live pricing
Use our interactive 3D metal building builder to spec every detail of your 16×20 build. Pick configuration, roof style, leg height, colors, doors, windows, side panels, and watch live pricing update.
- Visual 3D customization tool
- Live pricing as you customize
- Reserve your build with flexible deposit
- Balance due only after installation
Free tool. Flexible deposit to reserve your build.
Talk to a 16×20 Building Expert
Fastest answers, call or chat now
Speak directly with a building advisor who specializes in compact metal garages, workshops, carports, and storage buildings. Get pricing, permit guidance, configuration help, and customization advice in a single phone call.
- 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
Toll-free. Speak with an expert now.
How the 3D Builder Works
Design your ideal 16×20 metal building in minutes
1. Launch Builder
Open the builder in a new tab so you can keep this page available while designing.
2. Configure Your Building
Set size, roof style, certification, colors, doors, side panels, and other custom options.
3. Save Your Design
Copy your configuration code or summary before returning to this product page.
4. Complete Your Request
Send us your final configuration and we will confirm pricing, scheduling, and installation details.
Ready to design your custom 16×20 metal building?
Tip:Keep this page open so you can return and submit your final configuration with ease.
How Much Does a 16×20 Metal Building Cost?
No hidden fees on any 16×20 prefab steel building. A 16×20 metal carport starts around $2,995, an enclosed storage shed or single-car garage starts around $4,995 to $5,495, and a fully outfitted workshop or hobby studio with insulation and windows can reach $9,995 or more depending on options.
Building Configuration
A 16×20 carport is the lowest entry point. Adding side panels and end walls to enclose it as a garage or storage building adds wall material, trim, doors, and labor.
Your Location
Delivery distance from the regional manufacturing plant and state-specific anchor requirements affect the final 16×20 price. Wind, snow, and permit requirements can also change the quote.
Steel Gauge
14-gauge galvanized tubing comes standard on the 16×20. The 12-gauge upgrade adds strength and is recommended for high-wind locations, workshops, or long-term heavy-duty use.
Roof Style & Pitch
Regular Roof is the cheapest. A-Frame Horizontal adds a residential peaked look. Vertical Roof costs more but is recommended for snow, heavy rain, and better long-term drainage.
Certification
Certified buildings with stamped engineered drawings cost more. Certification becomes worth the upcharge if your county requires permits, you live in a wind or snow zone, or your HOA asks for drawings.
Doors, Windows, Insulation
Each roll-up door, walk-in door, window, and insulation package adds to the 16×20 price. Most enclosed garages use one roll-up door, one walk-in door, and one or two windows.
16×20 Metal Building Complete Price Range
Range covers an open carport at the low end through a fully enclosed insulated workshop or hobby studio with 26-gauge panels, double-bubble insulation, roll-up door, walk-in door, windows, and stamped engineered drawings.
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
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
How Delivery & Installation Works
A simple step-by-step process for getting your 16×20 metal building installed
Place Your Order
Submit your request for the 16×20 configuration and confirm colors, doors, certification, and site details.
Step 1
Production Scheduling
Your order is scheduled according to manufacturing capacity and your configured metal building requirements.
Step 2
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 16×20 builds.
Step 3
Installation Day
Our crew installs the 16×20 metal building and verifies the final layout, door placement, anchoring, and exterior finish details.
Step 4
16×20 Metal Building Reviews from Verified Buyers
Homeowners across 48 states have ordered 16×20 buildings from Steel And Stud as single-car garages, backyard workshops, equipment covers, garden storage buildings, and hobby studios. A few of their stories below.
“Bought the 16×20 as a single-car garage with enough room for my mower and tool bench. The crew installed it in a day, and the building looks better than the old wood shed it replaced.”
“Our 16×20 carport covers the side-by-side, mower, and snowblower with room to walk around. We added side panels later and it became the perfect equipment shed.”
“I use my 16×20 as a backyard workshop with insulation, a walk-in door, and one window. Plenty of space for woodworking tools and storage without taking over the garage.”
Compare 16×20 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 | 12×20 Building | 16×20 Building | 20×20 Building | 20×24 Building |
|---|---|---|---|---|
| Square Footage | 240 SF | 320 SF | 400 SF | 480 SF |
| Use Capacity | 1-car cover or storage | Single garage + workshop | 2-car compact garage | 2-car garage or larger shop |
| Access Potential | Very Good | Very Good | Excellent | Excellent |
| Roof Style | Customizable | Customizable | Customizable | Customizable |
| Best For | Single carport | Compact garage and storage | Garage or workshop | Expanded garage or studio |
| Price 12×20 | You’re Here | View 20×20 | View 20×24 |
16×20 Metal Building FAQ: Cost, Permits, Sizes & Install
Answers on pricing, configurations, leg heights, roof styles, colors, permit requirements, foundations, and load ratings for the 320 sq ft 16×20 prefab steel building.
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.
🔒 A specialist calls within 1 business day. We never share your details.
Customize Other Metal Building Sizes
Nearby width and length variants across our full metal building lineup — buildings, carports, garages, barns, and RV covers.
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