40×40 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
40×40 Metal Building Specs, Dimensions & Custom Options
The 1,600 sq ft 40×40 steel building footprint gives you a balanced square layout for garages, shops, warehouses, barns, RV storage, and commercial operations. Configure every spec below in our free 3D builder to match your exact use case, budget, and local building codes.
| Building Footprint | 40′ Wide × 40′ Longwith leg heights from 10′ to 20′ |
|---|---|
| Total Square Footage | 1,600 square feetof usable interior or covered space |
| Building Configurations | Metal garage, workshop, commercial storage building, RV cover, farm building, equipment shelter, warehouse, hobby shopAll Available |
| Enclosure Options | Open carport, partially enclosed, fully enclosed with four walls, side-entry garage, drive-through layout, or custom side configurations |
| Roof Styles | Regular Roof, A-Frame Horizontal / Boxed Eave, or Vertical Roof. Vertical Roof is recommended for rain, snow, and long-term drainage performance |
| Roof Pitch Options | Standard 3:12 pitch, with 4:12 and 5:12 pitch upgrades available for snow regions or steeper aesthetics |
| Frame Gauge | 14-gauge galvanized steel tubing standard, 12-gauge upgrade available and recommended for commercial, agricultural, and heavy-use builds |
| Roof & Wall Panels | 29-gauge sheet metal standard, 26-gauge upgrade available for hail-prone, coastal, or commercial-use locations |
| Door Options | Roll-up garage doors from 8’x8′ up to 14’x14′, 36″ walk-in doors, double doors, framed openings, hydraulic doors, and rapid-entry doors for commercial use |
| Window Options | 30″x30″ standard, 36″x36″, 48″x48″, storefront glazing, skylights, and insulated glazing options |
| 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 | 115 MPH standard, certified upgrades available up to 170+ MPH for hurricane, coastal, and high-wind zones |
| Snow Load | 35 PSF standard, certified upgrades available up to 65+ PSF for heavy snow regions |
| Certification | Available for any 40×40 configuration with engineered, stamped drawings that meet IBC, IRC, NEC, IFGC, IECC, and IMC codes |
| Anchoring | Concrete anchors, asphalt anchors, mobile home anchors, or auger anchors for ground installation, all included with standard builds |
| Free Delivery | Included on every orderin the 48 continental US states |
| Free Installation | Included on many tubular-frame 40×40 buildings. Custom red-iron or complex commercial builds may carry a separate installation fee. |
| Lead Time | 4 to 6 weeks from order confirmation, depending on engineering, season, and installation schedule |
| Installation Time | 1 to 3 days for most 40×40 configurations |
| Warranty | 20-year rust-through warranty plus 90-day workmanship guarantee |
Limited + Product Pledge
Paint Finish
Workmanship Guarantee
Workmanship Guarantee
12 Popular 40×40 Metal Building Uses (1,600 Sq Ft Layouts)
A 1,600 square foot prefab metal building gives you a square, flexible footprint for garages, shops, equipment storage, commercial use, and farm operations. Filter by use case below, pick the right configuration, and customize colors, doors, leg height, and roof style in our free 3D builder.
40×40 Metal Garage
Fully enclosed 1,600 sq ft steel garage for 4 to 6 vehicles, motorcycles, tools, and seasonal storage. Add multiple roll-up doors and a walk-in door for easy access.
40×40 Workshop / Hobby Shop
Square clear-span workshop for woodworking, auto restoration, fabrication, welding, crafts, and tool storage. Insulation-ready frame supports HVAC, benches, and equipment.
40×40 Metal Carport / Open Shelter
Open 40×40 steel shelter for vehicles, tractors, trailers, boats, ATVs, mowers, or covered work areas. Add side panels later if you want to enclose it.
40×40 Commercial Steel Building
1,600 sq ft commercial shell for retail storage, service businesses, contractor operations, small warehouses, and office-shop combinations. Certified drawings available.
40×40 RV / Boat Storage Building
Protect RVs, boats, trailers, fifth wheels, campers, and outdoor equipment inside a square 1,600 sq ft footprint with large roll-up door options.
40×40 Home Gym / Studio
Large private fitness, training, yoga, art, or hobby space with room for equipment zones, storage walls, and insulated comfort year-round.
40×40 Metal Barn / Farm Building
Farm and ranch building for tractors, hay, feed, livestock supplies, implements, and protected maintenance space. Add lean-tos for extra covered storage.
40×40 Man Cave / She Shed
Personal retreat, game room, music studio, art workshop, lounge, or collection storage. Add insulation, windows, walk-in doors, and HVAC-ready framing.
40×40 Warehouse / Factory Shop
Compact warehouse or industrial shop for inventory staging, machinery, material storage, service operations, or light manufacturing with heavy-duty framing options.
40×40 Government / Institutional Building
Municipal storage, emergency response staging, school equipment storage, field office, public works building, or maintenance shop with certified engineering.
40×40 Equestrian / Tack Building
Tack storage, feed storage, grooming bay, equipment shop, or compact equestrian utility building with ventilation, oversized doors, and heavy-duty framing options.
40×40 Worship / Community Building
Flexible 1,600 sq ft building for fellowship halls, classroom annexes, small worship spaces, community rooms, or nonprofit storage with code-ready options.
Not sure which 40×40 metal building configuration fits your project? Our building advisors design it free.
What’s Included in a 40×40 Metal Building Kit?
Every 40×40 prefab steel building kit ships with the core frame, panels, hardware, trim, anchors, and support needed to stand up your structure. Free curbside delivery is included on every order, with installation options based on building type and region.
Free With Every 40×40 Metal Building Order
Everything you need ships free with no hidden fees
- 14-gauge galvanized steel frame40′ x 40′ footprint with leg height of your choice from 10′ to 20′
- 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 26-gauge upgrade available
- 17 color optionsPick roof, walls, and trim independently from 17 popular metal building colors
- Galvanized purlins, girts, and bracingCold-formed steel secondary framing scaled for the 40×40 footprint
- All hardware includedFasteners, color-matched screws, sealing strips, brackets, bolts, and connection hardware
- 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
- Installation supportInstallation available on many tubular-frame buildings; custom red-iron commercial builds may be bid separately
- 20-year rust-through warrantyPlus 90-day workmanship guarantee on labor and assembly
+ Popular 40×40 Building Upgrades & Add-Ons
Optional add-ons to configure your 40×40 prefab building exactly the way you want it
- Side panel enclosureConvert a 40×40 carport into a fully enclosed garage, warehouse, workshop, or barn
- 12-gauge steel frame upgradeRecommended for commercial, agricultural, high-wind, heavy-use, and long-life 40×40 buildings
- 26-gauge sheet metal upgradeThicker panels for hail-prone regions, coastal climates, and commercial durability
- Certified / engineered drawingsStamped plans, foundation drawings, wet-stamped permit packages, and load calculations
- Higher wind and snow ratingsUp to 170+ MPH wind for hurricane zones and up to 65+ PSF snow load
- Roll-up garage doorsSizes from 8’x8′ up to 14’x14′, plus hydraulic, rapid-entry, and commercial overhead options
- Walk-in doors and framed openings36″ personnel doors, double doors, framed openings for windows, vents, or HVAC
- Windows and skylights30″x30″, 36″x36″, 48″x48″, storefront glazing, skylights, and insulated window options
- Insulation packagesSingle-bubble, double-bubble, fiberglass batt, spray foam, or insulated metal panels
- WainscotingPremium two-tone look with contrasting lower panels in any of the 17 colors
- Lean-to additionsCovered side spaces for equipment, trailers, hay, inventory, or outdoor work areas
- Taller leg heights up to 20′For RVs, fleet vehicles, forklifts, car lifts, racking, or overhead equipment clearance
Customize & Build Your 40×40 Metal Building Online
Every option below is selectable in our free 3D builder or your custom quote. The 40′ x 40′ footprint stays the same. Roof style, leg height, gauge, doors, windows, color, insulation, and certification are all yours to choose.
Leg Height (10′ to 20′)
The 40×40 footprint stays fixed while leg height is yours to choose. Garages and workshops often use 10′ to 14′. RV storage and commercial buildings often use 14′ to 18′. Fleet, warehouse, and agricultural buildings can stretch to 20′ for larger equipment and overhead clearance.
3 Roof Styles
Regular Roof is the most affordable option. A-Frame Horizontal gives a classic peaked look. Vertical Roof is recommended for most 40×40 buildings because it improves rain and snow runoff and gives the structure a more finished appearance.
Roof Pitch & Slope
Standard 3:12 roof pitch works for many 40×40 buildings. Upgrade to 4:12 or 5:12 pitch for heavy snow regions, steeper curb appeal, or a roofline that matches nearby structures.
Frame Gauge (14 or 12)
14-gauge galvanized steel tubing comes standard on many residential and standard builds. Upgrade to 12-gauge for commercial storage, farm equipment, high-wind areas, heavy-use shops, and buyers who want a stronger long-term frame.
Sheet Metal Gauge (29 or 26)
29-gauge sheet metal panels are standard for roof and walls. Upgrade to 26-gauge in hail-prone regions, coastal areas, or when you want a more durable exterior shell for commercial or agricultural use.
Certification & Engineering
Certified buildings come with stamped engineered drawings, foundation plans, and wind / snow load calculations matched to your local code. Certification is recommended for most commercial, warehouse, agricultural, and permitted 40×40 builds.
Roll-Up Garage Doors
Roll-up garage doors from 8’x8′ up to 14’x14′ are available. A 40×40 garage or shop can use multiple doors along the front, side, or rear wall for drive-through access and equipment flow.
Walk-In Doors
36″ personnel doors with full frames, weatherstripping, and locksets are available. Add multiple walk-in doors for employee access, emergency exits, office entries, or separate storage zones.
Hydraulic & Rapid Doors
Hydraulic one-piece doors and high-speed rapid-roll doors are available for commercial, agricultural, and fleet operations where large openings or frequent cycles are needed.
Windows & Skylights
30″x30″, 36″x36″, 48″x48″, storefront glazing, and skylights are available. Add window bands for offices, daylighting, workshops, or retail-facing builds.
Framed Openings
Order framed openings for future doors, vents, HVAC units, windows, louvers, dock systems, or expansion plans. Framed openings help avoid cutting into the structure later.
Garage Door Openers & Windows
Commercial openers, chain-hoist systems, smart Wi-Fi openers, keypad access, and window kits are available for roll-up doors and overhead door systems.
17 Standard Color Options
Choose from 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. All colors carry a 20-year paint warranty and resist fade from UV exposure.
Mix-and-Match Roof, Walls, Trim
Pick a different color for your roof, wall panels, and trim. Popular combinations include White walls with Barn Red roof for a classic barn look, or Pewter Gray walls with Black trim for a clean modern shop finish.
Wainscoting (Two-Tone Walls)
Add wainscoting for a premium two-tone look. Lower 3′ to 4′ of wall in a contrasting color creates curb appeal and helps hide scuffs near vehicle, equipment, and loading areas.
Galvalume (Bare Metal Finish)
Galvalume is a hot-dipped aluminum-zinc coating with no paint. It is cost-effective, corrosion-resistant, and works well for rural, agricultural, and industrial-style 40×40 buildings.
Painted Trim & Flashings
Color-matched ridge caps, eave trim, corner trim, gable trim, and rake trim finish the building cleanly. Hardware and screws can be color-matched to your panel package.
Custom Color Match
Need to match an existing home, corporate color, HOA requirement, barn, shop, or municipal palette? Custom paint matching is available for an upcharge with sample approval before final order.
Insulation Options
Single-bubble, double-bubble, fiberglass batt, spray foam, and insulated metal panels are available. Choose based on condensation control, energy efficiency, climate, and whether your 40×40 will be heated or cooled.
Lean-To Additions
Add a lean-to on one or more sides for trailer cover, outdoor work areas, hay storage, equipment staging, material storage, or a protected entry zone.
Mezzanines & Lofts
Partial mezzanines can add office, parts storage, or overhead inventory space. Mezzanine loads must be engineered before fabrication so the frame, columns, and foundation match the intended use.
Interior Partitions
Divide the 1,600 sq ft into garage bays, warehouse zones, offices, restrooms, tack rooms, tool rooms, inventory areas, or equipment maintenance zones.
Trim, Anchors, Gables
Decorative trim, contrast corners, finished gables, and color-matched anchors give the 40×40 a clean, intentional look that blends with the home, commercial property, shop, or barn.
Flooring Prep
We do not pour foundations, but we guide you on the right slab spec. Concrete pads are recommended for fully enclosed garages, warehouses, workshops, and commercial buildings. Gravel or level dirt can work for some open agricultural shelters.
Wind & Snow Certification
Standard 115 MPH wind and 35 PSF snow load are available on many 40×40 configurations. Certified upgrades can reach 170+ MPH wind and 65+ PSF snow load depending on your local code and engineering package.
Permit-Ready Drawings
Stamped engineered drawings, foundation plans, and code calculations are available for permit offices, HOAs, insurance requirements, commercial approvals, and certified building packages.
Door Locks & Access Control
Slide bolts, deadbolts, keypad entry, smart locks, Wi-Fi connected garage door openers, and commercial access systems are available for secure vehicle, equipment, and inventory storage.
Fire Safety & Alarms
Smoke and heat detectors, Class ABC fire extinguishers, emergency lighting, fire-rated options, and sprinkler-system-ready framing can be added depending on occupancy and code requirements.
Anchoring System
Concrete wedge anchors, asphalt anchors, mobile-home anchors, or auger ground anchors are matched to your foundation surface. Engineered anchor patterns are available for certified 40×40 builds.
Solar & Roof-Top Loads
Engineered roof upgrades can support solar panels, rooftop HVAC, ventilation fans, satellite dishes, and other equipment when specified before fabrication.
40×40 Metal Building Codes, Permits & Engineering
Every 40×40 prefab steel building we sell can be engineered, stamped, and certified to meet your local building codes. Certification is recommended for commercial storage, shop use, agricultural buildings, workshops, and most permitted 1,600 sq ft structures.
We also adhere to plumbing codes, energy conservation standards, ADA requirements when applicable, and any state or local requirements. Our team handles code compliance so you have total peace of mind.
How to Maintain a 40×40 Metal Building
Simple seasonal upkeep keeps your 40×40 prefab steel building structurally sound, weather-tight, and looking sharp through the full 20-year rust-through warranty period.
What Can You Do with 1,600 Square Feet?
A 40×40 metal building gives you a square, flexible footprint for storage, vehicles, equipment, commercial operations, and protected daily use
Multi-Car Garage
Park multiple vehicles, trailers, motorcycles, and tools in a secure enclosed steel structure
Workshop Space
Use the square layout for benches, tools, repairs, fabrication, and hobby projects
Equipment Shelter
Protect machinery, tractors, implements, trailers, and valuable gear from weather
Commercial Storage
Store inventory, boxed products, tools, contractor supplies, and business equipment
Roll-Up Door Access
Add multiple roll-up doors for vehicle flow, loading, and equipment movement
Hobby & Recreation
Create a large home gym, game room, studio, event storage space, or project building
Farm & Ranch Use
Shelter feed, hay, tractors, tack, implements, and ranch supplies with steel protection
RV & Boat Storage
Choose taller legs and large doors to protect RVs, boats, trailers, and outdoor gear
3 Ways to Order Your 40×40 Metal Building
Customize your 40×40 steel building in our free 3D builder, request a free custom quote, or talk directly with a building expert. Reservation deposit typically ranges from 10% to 30% based on your state and manufacturer. Final balance is due only after your installation is complete.
Request Free 40×40 Quote
Free custom design, reply within 24 hours
Tell us your requirements and our 40×40 building advisors will design and price your custom steel building for free. Best path if you need permit help, certified drawings, an enclosed garage, or a commercial storage layout.
- 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 40×40 in 3D
Design your 40×40 yourself, see live pricing
Use our interactive 3D metal building builder to customize every detail of your 40×40 build. Pick configuration, height, doors, windows, colors, gauge, side panels, insulation, and roof style.
- 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 40×40 Building Expert
Fastest answers, call or chat now
Speak directly with a building advisor who specializes in 40×40 metal buildings. Get pricing, permit guidance, configuration help, and customization advice in minutes.
- 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 40×40 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 40×40 metal building?
Tip:Keep this page open so you can return and submit your final configuration with ease.
How Much Does a 40×40 Metal Building Cost?
No hidden fees on any 40×40 prefab steel building. A 40×40 open metal shelter starts around $10,995, an enclosed garage from $18,500, an agricultural barn from $17,500, an RV storage building from $16,500, and a commercial certified build from $24,500. Add foundation prep based on slab, gravel, or site requirements for the complete project cost.
Building Configuration
A 40×40 open shelter is the cheapest entry point. Enclosing it as a garage, barn, shop, or warehouse adds wall panels, trim, doors, anchors, and labor. Commercial certified builds add engineering and upgraded materials.
Your Location
Delivery distance, regional labor rates, state-specific certification requirements, and local wind or snow loads affect the final price.
Steel Gauge
14-gauge galvanized tubing is standard on many builds. 12-gauge adds strength and is recommended for commercial storage, farm buildings, fleet garages, workshops, and high-wind zones.
Roof Style & Pitch
Regular Roof is the most affordable. A-Frame Horizontal adds curb appeal. Vertical Roof costs slightly more but is recommended for drainage, snow regions, and enclosed 40×40 buildings.
Certification
Certified buildings with engineered, stamped drawings cost more but are often required for 40×40 commercial, agricultural, warehouse, and permitted residential structures.
Doors, Windows, Insulation
Each roll-up door, walk-in door, window, framed opening, insulation package, and commercial access system changes the price. Multiple large doors are one of the biggest cost variables on 40×40 buildings.
40×40 Metal Building Complete Price Range
Range covers an open shelter at the low end through a fully loaded certified garage, commercial storage building, agricultural shop, or workshop with 12-gauge upgrade, insulation, multiple large doors, windows, and engineered drawings at the high end.
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 40×40 metal building installed
Place Your Order
Submit your request for the 40×40 configuration and confirm colors, doors, certification, site details, roof style, and enclosure options.
Step 1
Production Scheduling
Your order is scheduled according to manufacturing capacity, engineering requirements, and your configured metal building specifications.
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 depending on your selected configuration.
Step 3
Installation Day
Our crew installs the 40×40 metal building and verifies the final layout, door placement, anchoring, and exterior finish details.
Step 4
40×40 Metal Building Reviews from Verified Buyers
Homeowners, contractors, farm operators, and commercial buyers across 48 states trust Steel And Stud for 40×40 metal garages, workshops, barns, RV storage buildings, and commercial steel buildings.
“Ordered a 40×40 fully enclosed garage for vehicles, tools, and weekend projects. The square layout is easy to organize, and the vertical roof has handled heavy rain with no leaks.”
“We use our 40×40 as a farm shop and equipment building. There is enough room for the tractor, tools, feed, and maintenance area. The 12-gauge upgrade was worth it for our wind exposure.”
“Our 40×40 shop replaced two rented storage units and gave us room for inventory, tools, and service work. We added two roll-up doors, insulation, and a walk-in door.”
Compare 40×40 vs. Other Metal Building Sizes
Need a different size? Compare prices and customize any of these prefab steel building sizes in our free 3D builder. Every order ships free to 48 states and comes with a 20-year rust-through warranty.
| Feature | 30×40 Building | 40×40 Building | 40×50 Building | 40×60 Building |
|---|---|---|---|---|
| Square Footage | 1,200 SF | 1,600 SF | 2,000 SF | 2,400 SF |
| Use Capacity | Garage + shop | Balanced square layout | Expanded storage | Large shop or equipment |
| Access Potential | Very Good | Excellent | Excellent | Excellent |
| Roof Style | Customizable | Vertical Recommended | Vertical Recommended | Vertical Recommended |
| Best For | Small shop or garage | Garage, workshop, storage | More depth and workflow | Farm, fleet, warehouse |
| View 30×40 | You’re Here | View 40×50 | View 40×60 |
40×40 Metal Building FAQ: Cost, Permits, Sizes & Install
Everything you need to know before ordering your custom 1,600 sq ft prefab steel building. Get answers on pricing, configurations, leg heights, roof styles, 17 color options, foundation prep, and code compliance.
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.
Customize Other Metal Building Sizes
Nearby width and length variants across our full metal building lineup — buildings, carports, garages, barns, and RV covers.
Deluxe Commercial Metal Buildings - 40 x 40 x 14
Commercial Metal Buildings - 40 x 40 x 14
Deluxe Commercial Metal Buildings - 46 x 40 x 16
40x48 Metal Building Kits Custom-Engineered to Your Site
Deluxe Commercial Metal Buildings - 40 x 50 x 14
Triple Wide Metal Garages - 30 x 40 x 12
25x40 Metal Building
Standard Metal Carports - 24 x 40 x 10
Utility Metal Carports - 24 x 40 x 10
Standard Metal Garages - 24 x 40 x 10
Metal Garage With Lean-to - 24 x 40 x 12
