STEEL BUILDING KIT GUIDE | Updated April 2026 | 11 min read
WHAT YOU’LL LEARN IN THIS GUIDE
• Real 2026 metal carport kit prices by size, from single-car to RV-width
• What roof styles cost and which ones last
• What’s included in a typical carport kit and what you’ll need to add
• The best companies to buy from in 2026
• DIY vs professional installation cost comparison
• Permit requirements most buyers overlook
• Anchoring options for concrete vs gravel
• The most common mistakes that cost buyers $1,000–$5,000 more than necessary
Metal carport kits are one of the most cost-effective ways to protect vehicles, equipment, and recreational gear without building a full enclosed structure. But metal carport prices vary widely, from under $1,500 for a bare-bones single-car kit to over $20,000 for an RV-width enclosed carport with vertical roof and side panels. Knowing what drives that price difference is the only way to get the right structure at the right cost.
This guide gives you real 2026 pricing, an honest breakdown of what’s actually included, and our independent take on the best companies to buy from. For comparisons of full enclosed building kits, see our top 10 metal garage kit companies guide.
QUICK ANSWER: Metal Carport Kit Cost
Metal carport kits cost $1,295–$20,000 in 2026 depending on size, roof style, and options. A standard single-car kit (12×20) runs $1,500–$4,500. A 2-car vertical-roof carport (20×20) costs $3,500–$8,000. Professional installation adds $1,500–$5,000 to kit cost. RV carport kits (20×45 or wider) range from $8,000–$22,000 installed.
1. Metal Carport Kit Prices in 2026: By Size
Metal carport prices depend on three main variables: width, length, and roof style. Here is a realistic breakdown of what buyers are paying in 2026.
Single-Car Carport Kits (12-foot wide)
| Size | Roof Style | Kit Price | Installed |
|---|---|---|---|
| 12×20 | Regular | $1,295–$1,900 | $2,400–$4,200 |
| 12×20 | Boxed Eave | $1,500–$2,200 | $2,700–$4,800 |
| 12×20 | Vertical | $1,800–$2,800 | $3,200–$5,500 |
| 12×30 | Vertical | $2,200–$3,400 | $3,800–$6,200 |
Two-Car / Double Carport Kits (18–22 foot wide)
| Size | Roof Style | Kit Price | Installed |
|---|---|---|---|
| 18×20 | Regular | $1,900–$2,800 | $3,200–$5,500 |
| 20×20 | Vertical | $3,200–$5,500 | $4,800–$8,000 |
| 22×20 | Vertical | $3,800–$6,200 | $5,500–$9,500 |
| 20×30 | Vertical | $4,500–$7,000 | $6,500–$11,000 |
RV and Boat Carport Kits (26–36 foot wide)
| Size | Roof Style | Kit Price | Installed |
|---|---|---|---|
| 26×40 | Vertical | $7,500–$11,000 | $10,000–$16,000 |
| 30×50 | Vertical | $10,000–$14,500 | $13,500–$20,000 |
| 36×45 | Vertical | $12,000–$18,000 | $16,000–$22,000 |
Use our steel building cost calculator to get a personalized price estimate based on your size and location.
KEY INSIGHT
Width is the single biggest cost driver in metal carport pricing. Widths up to 24 feet use standard trusses. From 26–30 feet, triple-wide trusses are required, adding cost noticeably. Above 30 feet, commercial trusses are needed, which can double the per-square-foot cost vs a standard-width carport.
2. Roof Styles: Which One Should You Choose?
The roof style on a metal carport kit affects price, durability, and how well it handles your local weather. There are three options.
Regular Roof (Horizontal Panels): The most affordable option. Panels run horizontally, creating rounded corners at the eaves. Cheapest option by $300–$800 versus vertical. Not recommended for areas with heavy snow or high annual rainfall.
Boxed Eave Roof (A-Frame Horizontal): A-frame shape with squared corners. Better appearance than regular, similar structural performance. Good for mild climates where aesthetics matter more than extreme weather performance.
Vertical Roof (Recommended): Panels run vertically with a ridge cap at the peak. Water and snow shed directly off the roof instead of collecting in panel seams. More expensive, but the only style recommended for areas with more than 20 inches of annual snowfall.
BUYER WARNING
In areas with moderate to heavy snowfall, a regular-roof carport can collect snow load in panel seams and fail structurally. Most warranty claims and collapses involve regular or boxed-eave roofs in snowy climates. Spend the extra $300–$800 and get a vertical roof if you see more than a few inches of snow annually.
3. What’s Included in a Metal Carport Kit?
Structural Components: Steel frame (round tube construction standard; I-beam on larger widths), roof trusses pre-cut to size, base rails or anchor kit, all fasteners and hardware.
Exterior Skin: Roof panels (29-gauge standard on regular/boxed eave; 26-gauge on most vertical roof kits), ridge cap and trim, leg covers on fully enclosed sides (if side panels are included).
What Is NOT Included: Concrete anchors, earth augers or rebar for ground anchoring, side panels (often sold as add-ons), end walls (almost always sold separately), permits or engineering drawings, and installation labor.
4. DIY vs Professional Installation: Cost Comparison
| Size Category | DIY Feasibility | DIY Time | Pro Install Cost |
|---|---|---|---|
| 12×20 single-car | Easy, 1–2 people | 4–8 hours | $500–$1,200 |
| 20×20 double-car | Moderate, 2–3 people | 6–12 hours | $1,000–$2,500 |
| 26×30 triple-wide | Difficult, 3+ people | 1–2 days | $2,000–$4,000 |
| 30×50 RV/commercial | Requires equipment | 2–3 days | $3,500–$6,000 |
5. Best Companies for Metal Carport Kits in 2026
Alan’s Factory Outlet: One of the most widely reviewed carport retailers in the US. Broad range of sizes, styles, and colors with online pricing transparency. Ships nationwide with professional installation options.
AA Metal Buildings: Direct pricing, strong customer service reviews, and good vertical roof inventory across carport sizes.
American Metal Buildings: Strong national dealer network with fast lead times of 2–4 weeks on smaller carport kits.
VersaTube Building Systems: DIY-focused bolt-together carport and garage kits that don’t require welding. Available at Home Depot and direct.
For enclosed garages rather than open carports, see our full breakdown of the best steel building kit companies and our steel building company ratings.
6. Anchoring Your Metal Carport: Concrete vs Asphalt vs Gravel
Concrete Anchoring (Best Option): Mobile-home-style concrete anchors bolted into a poured slab or pre-drilled into existing concrete. Most secure mounting method and required by most manufacturers to maintain the wind rating warranty.
Asphalt Anchoring: Similar anchors to concrete but requires a longer anchor to reach solid material through the asphalt. Not recommended in extreme wind zones without supplemental gravel or soil anchoring at perimeter.
Ground/Gravel Anchoring: Earth auger anchors drilled into the soil. The weakest anchoring method. Not recommended for areas with sustained winds above 80 mph. Most manufacturers will not warranty wind resistance on ground-anchored installations.
For more on foundation options and building requirements, see our steel building foundation types guide.
7. Permit Requirements for Metal Carports
Open carport structures under a certain size are often exempt from permits in rural areas, but this varies significantly by county. Open carports under 200 sq ft are often permit-free in unincorporated rural areas. Enclosed structures, carports larger than 200 sq ft in cities, HOA-governed neighborhoods, and carports within setback distance of a property line typically require permits.
BUYER WARNING
Even an open carport can trigger a permit requirement in an HOA community or certain municipalities. Always call your county building office before ordering. A carport built without a required permit may need to be removed at your expense if discovered during a home sale inspection.
For state-specific code information, visit our steel building codes by state page.
8. Metal Carport vs Metal Garage: When to Upgrade
| Choose a Carport If… | Choose a Garage Kit If… |
|---|---|
| Budget is under $8,000 | You need a lockable, secure space |
| You only need weather protection | You plan to use the space as a workshop |
| Climate is mild (no hard freezes) | You’re in a high-theft or high-vandalism area |
| Temporary or rental property | You need year-round climate control |
| HOA allows it | The structure will house valuable equipment |
For fully enclosed options, our top 10 metal garage kit companies guide covers the best companies at every price point.
9. Common Mistakes When Buying a Metal Carport Kit
| Mistake | Why It Costs You | Fix |
|---|---|---|
| Buying regular roof in a snowy climate | Snow load buildup, panel failure | Always choose vertical roof with 20+ inches annual snowfall |
| Skipping side panels to save money | Opens building to wind-driven rain | Budget for side panels on 3 sides minimum |
| Not checking permit requirements | Required removal, fines | Call county before ordering |
| Choosing cheapest kit without comparing gauge | Thin-gauge panels corrode faster | Verify 29-gauge minimum, 26-gauge preferred |
| Ground anchoring in a wind zone | Wind damage not covered by warranty | Use concrete anchors on slab or poured anchors |
| Ordering without measuring for vehicle height | RV or truck doesn’t fit under eave | Add 2 feet to your tallest vehicle height |
| Buying from an unknown reseller online | No support, wrong components | Stick to established national dealers or direct manufacturers |
| Not accounting for delivery cost | $300–$1,200 surprise on checkout | Ask for freight cost upfront |
10. Article Summary
- Metal carport kits cost $1,295–$20,000 in 2026, depending on width, length, and roof style
- Vertical roof is the only style worth buying in areas with significant snow or rain
- Width drives cost more than length: going from 20 to 26 feet can increase price by 30–50%
- Most kits include framing, roof panels, and hardware but NOT side panels, end walls, or anchoring systems
- Professional installation adds $500–$6,000 depending on size and complexity
- Open carports under 200 sq ft may not require a permit in rural areas; enclosed structures almost always do
- Best-reviewed companies: Alan’s Factory Outlet, AA Metal Buildings, American Metal Buildings, and VersaTube for DIY kits
- Always anchor to concrete for maximum wind resistance and to maintain warranty coverage
- For enclosed vehicle storage, a full steel garage kit offers better long-term value
Frequently Asked Questions
How much does a metal carport kit cost in 2026? Metal carport kit prices in 2026 range from $1,295 for a basic 12×20 regular-roof single-car kit to over $18,000 for a 36×45 RV carport with vertical roof and side panels. A typical double-car carport (20×20) with a vertical roof runs $3,500–$8,000 installed. Use our steel building cost calculator to estimate your specific project.
What is the best roof style for a metal carport kit? Vertical roof is the best roof style in most climates. Panels run vertically and shed water and snow directly off the roof, preventing buildup in panel seams. It costs $300–$800 more than regular or boxed-eave but lasts significantly longer. In mild southern climates with minimal precipitation, a boxed-eave roof is a reasonable budget compromise.
Do I need a permit for a metal carport? Permit requirements vary by jurisdiction. Open carports under 200 square feet are often exempt in unincorporated rural areas, but enclosed structures and larger footprints typically require permits. See our steel building codes by state guide for your state’s typical requirements.
Can I install a metal carport kit myself? Single and double-car metal carport kits (up to 22 feet wide) are designed for DIY assembly with 2–3 people and basic hand tools. Expect 4–12 hours for a standard 20×20 unit. Professional installation is recommended for anything over 30 feet wide.
What size metal carport do I need for an RV? Most Class A and Class C motorhomes need a minimum 14-foot clearance height and 14-foot width. A 20×40 carport is the minimum for a standard-length RV, but a 26×50 or 30×50 is a better fit. Always add 2 feet of width and 2 feet of clearance height over your vehicle’s actual dimensions when ordering.
What anchoring method is best for a metal carport? Concrete anchoring is the most secure and required by most manufacturers to maintain wind warranty coverage. Ground or gravel anchoring is adequate for calm-climate installations but voids wind warranties and is not recommended in areas with sustained winds above 80 mph.
How do metal carports compare to full metal garage kits? Metal carports protect from weather but offer no security or climate control. A full metal garage kit is fully enclosed with lockable doors. Carports start around $1,300; enclosed garage kits start around $8,000–$12,000 for a comparable footprint. See our metal garage kit companies guide for full details.
