Easily Build Your Own Timber Frame RV or Carport Cover
Key Takeaways / What You’ll Learn
- How a timber frame carport kit arrives pre-cut and test-assembled — and why most go up in a single afternoon
- The real differences between timber, metal, aluminum, and vinyl carports (wind ratings, heat, longevity, aesthetics)
- Sizing guidance for cars, RVs, boats, farm equipment, and commercial fleets — including height clearance specs
- Why your carport can double as an outdoor living space, event venue, solar platform, or EV charging station
- The engineering and permit details most carport companies skip — and why they matter at resale
- What to look for in joinery, hardware, and materials so your carport outlasts the vehicles it protects
- A 7-question evaluation checklist for comparing any carport company
A solid, good-looking carport doesn’t have to be a long-haul project. With the right kit, you can go from a patch of grass to parking under a finished timber frame structure in less time than most people spend assembling flat-pack furniture. We’ve seen homeowners start in the morning and stand under a completed oversized timber carport by dinner — yes, one afternoon.
The reason is what happens before the first beam is raised. A timber frame carport kit arrives with every timber precisely pre-cut, pre-drilled, notched, and finished with two coats of premium UV-rated exterior stain. The joinery is engineered so each beam slides into place with a flawless seam. No drilling on-site. No cutting. No guesswork. The structure was already test-assembled at the shop — your job is to put the pieces where they go.
This guide covers everything you need to know before you build: how a timber frame kit comes together, what size you need, how timber compares to metal and vinyl, what your carport can do beyond parking, and how to evaluate any company before you buy.
How a Timber Frame Carport Kit Comes Together

The process starts with a conversation, not a construction crew. Western Timber Frame’s Design Managers work with you one-on-one to ensure every detail fits — from the scale and clearance for your vehicles or equipment to the style that complements your home, business, or resort.
Once the design is decided on, fabrication happens at WTF’s shop. Every timber is CNC-machined for precision, then hand-fitted by craftsmen. Mortise-and-tenon joints — The Dovetail Difference — are cut to exact tolerances so the pieces interlock with no visible hardware. This is the same joinery method used in timber frame construction for centuries, but executed with modern CNC precision that ensures every joint seats perfectly.
How strong is that joinery? Mortise-and-tenon connections are 500% stronger than standard bracket-and-bolt assemblies. That’s not a marketing number — it’s structural physics. A bolted connection relies on the bolt to hold the load. A mortise-and-tenon joint distributes the load across the entire contact surface of the interlocking timbers. Under stress, bolted connections loosen as wood expands and contracts through seasonal cycles. Mortise-and-tenon joints get tighter under load.
Your structure arrives with every timber precisely pre-cut, drilled, notched, and finished with two coats of premium, UV-rated exterior stain. Thanks to our mortise-and-tenon joinery — The Dovetail Difference® — each beam slides into place with a flawless seam and no visible hardware.
✔ Freestanding or attached to your home, lodge, or commercial building
✔ Sized for cars, RVs, farm equipment, boats, or recreational vehicles
✔ Engineered to outlast metal, vinyl, or mass-produced alternatives
✔ Ready for shade, events, and all-weather protection

What arrives at your site:
- Every timber pre-cut to your exact dimensions
- All joints pre-drilled and notched for mortise-and-tenon assembly
- Two coats of premium Sherwin-Williams SuperDeck UV-rated stain already applied
- Hardware concealed within the structure — no visible bolts, brackets, or connectors
- Assembly guide with numbered pieces and step-by-step instructions
- The structure has already been test-assembled at the shop to verify fit
Your structure can be freestanding or attached to your home, lodge, or commercial building. Freestanding carports offer maximum flexibility for placement and future site changes. Attached configurations create a seamless transition from building to covered parking — and often require fewer posts, since the existing structure provides support on one side.
For a deeper look at what’s inside a timber frame kit and how the pieces work together, see What’s in a Custom Timber Pergola Kit?.
What Size Carport Do You Need?
The most expensive carport mistake isn’t choosing the wrong material — it’s choosing the wrong size. An undersized structure means you’re folding mirrors, climbing over bumpers, and hoping the overhang catches the rain before it hits your windshield. An oversized structure wastes money and yard space.
The key measurements: width (side to side), depth (front to back), and height (ground to lowest beam). Height is where most people underestimate — especially RV owners. A Class A motorhome with rooftop AC units can exceed 13 feet. A fifth-wheel with satellite dish can push past 13.5. If your carport is 12 feet at the beam, you’re an inch of pavement crown away from a very expensive scraping sound.

Carport Sizing by Vehicle Type
|
Vehicle Type |
Min. Width |
Min. Depth |
Min. Height |
Recommended Size |
|---|---|---|---|---|
|
Single car |
12 ft |
20 ft |
8 ft |
14×22 |
|
Two cars (side by side) |
20 ft |
20 ft |
8 ft |
22×24 |
|
Truck / Full-size SUV |
14 ft |
24 ft |
9 ft |
16×26 |
|
Class B RV / Camper Van |
14 ft |
24 ft |
10 ft |
16×26 |
|
Class C RV |
14 ft |
30 ft |
12 ft |
16×32 |
|
Class A Motorhome |
16 ft |
40 ft |
14 ft |
18×42 |
|
Boat on trailer |
14 ft |
30 ft |
12-14 ft |
16×32 |
|
Farm tractor |
16 ft |
24 ft |
12 ft |
18×26 |
|
Commercial fleet (2-3 vehicles) |
30 ft |
24 ft |
10-14 ft |
32×26 |
The “add two feet” rule. Whatever your vehicle’s dimensions, add at least two feet on each side for comfortable clearance. This accounts for mirror width, door swing, and the practical reality of pulling a 40-foot RV into a covered space without holding your breath.
For RVs specifically, measure from the ground to the highest point — including rooftop AC, antenna, satellite dish, or any aftermarket additions. Then add 12-18 inches of clearance above that. You’re not just parking. You’re pulling in, pulling out, and occasionally standing on the roof for maintenance. Give yourself room.
WTF’s Design Managers handle this measurement process during your consultation. They’ll ask about your vehicles, your site conditions, and your future plans — because the carport you build today should accommodate the truck you buy next year, not just the sedan in the driveway now.
Timber Frame vs. Metal, Aluminum, and Vinyl Carports

This is where most buyers get stuck — and where most carport companies hope you don’t dig too deep.
The upfront price of a metal carport is hard to argue with. A basic steel carport from a big-box retailer runs $2,000-$5,000. An aluminum kit might cost $5,000-$12,000. A vinyl structure lands somewhere in between. A custom timber frame carport starts higher — but the comparison stops being apples-to-apples the moment you look past year one.
Carport Material Comparison
|
Factor |
Heavy Timber Frame (WTF) |
Steel / Metal |
Aluminum |
Vinyl |
|---|---|---|---|---|
|
Wind load rating |
160+ mph (engineered) |
90-110 mph (typical) |
100-120 mph |
80-100 mph |
|
Longevity |
50+ years |
15-25 years |
20-30 years |
7-15 years |
|
Surface temp at 115F |
Cool — touchable |
Hot — contact burn risk |
Hot — contact burn risk |
Warm, but becomes brittle |
|
Maintenance |
Re-stain every 3-5 years |
Rust treatment, repaint |
Minimal |
Minimal (yellows over time) |
|
Joinery strength |
500% stronger (mortise & tenon) |
Bolted brackets |
Bolted/screwed |
Snap-fit connectors |
|
Aesthetics |
Architectural, property-enhancing |
Industrial / utilitarian |
Modern / minimal |
Basic / temporary |
|
Stamped engineering |
Standard |
Rarely included |
Sometimes |
Rarely |
|
Solar-ready |
Yes (engineered for roof load) |
Sometimes (weight limits) |
Weight-limited |
No |
|
Adds property value |
Yes — permitted, architectural |
Neutral to negative |
Neutral |
Negative (temporary appearance) |
|
Upfront cost |
$$$ |
$ |
$$ |
$ |
Where metal genuinely wins: upfront cost. If your only criteria is “covered parking at the lowest possible price,” a metal carport delivers. There’s no shame in a budget-driven decision, and a $3,000 steel carport is better than no cover at all. The question is what happens at year 5 — and year 15.
We’ve replaced countless lighter-weight metal, vinyl, and aluminum carports that couldn’t survive high wind, snow load, or years of UV exposure. Western Timber Frame structures have weathered hurricanes without faltering. That’s not because timber is magical — it’s because heavy timber engineered with mortise-and-tenon joinery, concealed structural hardware, and stamped engineering drawings performs differently than bolt-together commodity structures under extreme conditions.
The temperature factor nobody talks about. Heavy timber has high thermal mass — it absorbs and stores heat rather than conducting and re-radiating it. In a WTF field test at 115F ambient temperature in Arizona, the timber remained cool to the touch. Metal and aluminum conduct heat. On the same day, a steel carport frame becomes a contact burn risk for anyone who grabs a post — including children and pets. For families, this isn’t an abstract spec. It’s a safety consideration the American Burn Association tracks every summer.
Wood is also nature’s best insulator. A vehicle parked under a timber frame carport stays measurably cooler in summer and warmer in winter compared to the same vehicle under metal. That thermal buffer protects paint, interiors, rubber seals, and tire compounds — extending the life of the assets you’re sheltering.
The honest maintenance disclosure: timber requires re-staining every 3-5 years. That’s a real commitment roughly $200-$500 in materials for a carport-sized structure, plus a weekend of work. It’s the tradeoff for a structure that stays cool, looks better with age, and lasts 50+ years. Whether that tradeoff works for you depends on your priorities, and a good company will help you make that decision honestly.
For more on how timber frame joinery differs from standard post-and-beam construction, see Post and Beam vs. Timber Frame: What’s the Difference?.
More Than a Carport — Dual-Use Versatility
Here’s the reframe most carport companies never make: a timber frame carport isn’t just a place to park. It’s an outdoor room without furniture.

The same structure that shelters your truck on Tuesday becomes a shaded gathering space for a Saturday barbecue. The same oversized carport that covers a Class A motorhome becomes an event staging area when the RV is on the road. This dual-use versatility is unique to timber frame — because the structure is beautiful enough to gather under, not just park under.
Residential dual-use:
- Weekend barbecues and family gatherings under the shade planks
- Shaded workshop space for woodworking, car maintenance, or projects
- Covered play area for kids during rain or intense sun
- Outdoor lounge with string lights and seating when vehicles are out
Commercial and hospitality dual-use:
- Hotel or resort porte-cochère — a grand covered entrance that sets the tone for the entire property
- Winery or brewery tasting area and event staging
- Covered loading and delivery space for commercial operations
- Restaurant overflow dining under a timber canopy
Agricultural dual-use:
- Shaded work bay for equipment maintenance and repairs
- Covered staging area during harvest
- Protected storage for hay bales, feed, and seasonal equipment
The solar and EV angle. A timber frame carport engineered for structural load can support rooftop solar panels — turning your covered parking into a power generation platform. Combined with Western Timber Frame’s TimberVolt Power Post System, you get built-in electrical pathways for EV charging stations, lighting, tool outlets, or audio systems. The posts arrive pre-wired and ready for a licensed electrician to connect on-site.
Think about that progression: covered parking → shade structure → solar platform → EV charging station → outdoor living space. A single timber frame structure does all of it. A metal carport parks your car.
Rick and Donna Stafford in Cedar City, Utah, built a 16×32 timber frame carport primarily to shelter their Class C motorhome. The first time they hosted Thanksgiving in their driveway — string lights woven through the shade planks, folding tables set end to end, 22 family members under the timber canopy while the motorhome was out at a state park — Rick told their Design Manager: “We thought we were building a carport. Turns out we built the family room we didn’t know we needed.” The structure cost a fraction of a home addition. It gets used more than any room in their house from April through October.
That’s what happens when the structure is built to be seen, not hidden.
If you’re exploring how a covered structure can serve as both vehicle protection and outdoor living space, WTF’s design team can walk you through dual-use options during a free consultation — including TimberVolt electrical mapping for solar and EV charging.

What Makes Western Timber Frame Carports Different
Every timber frame company makes claims. Here’s what’s measurable.
500% stronger joinery — The Dovetail Difference. WTF’s mortise-and-tenon connections are CNC-machined to exact tolerances, then hand-fitted by craftsmen. No visible bolt hardware. The joint distributes load across the full contact surface rather than concentrating it at bolt points. Under stress, the joint tightens. Under seasonal expansion and contraction, it holds — because the connection is the wood itself, not metal fasteners passing through it.
True-to-size timbers. WTF uses full-scale, rough-sawn lumber — not nominal-dimension lumber from a home center. A “6×6” at a lumberyard actually measures 5.5×5.5 inches after milling. A WTF 6×6 is a full 6×6. The difference is visible, structural, and immediate. You feel the mass of the timbers when you stand under the structure. That presence is what separates a timber frame from a carport kit.
Refined edges. Every exposed corner receives a ¼-inch round — comfortable to the touch, elegant to the eye. It’s a small detail that signals craft. Run your hand along a WTF timber and compare it to a rough-cut post from a hardware store. That edge treatment is one of the first things people notice and one of the last things they can articulate. It just feels right.
Closer shade planks. WTF’s shade plank spacing delivers more coverage and a more distinctive architectural look than widely spaced slats. The result is functional shade — ShadePrint 80%+ coverage — not decorative gaps that let the sun pour through.
No exposed hardware. Every connection is concealed within the timber. No bolt heads, no bracket plates, no visible fasteners. The visual result is clean, uninterrupted lines — timber meeting timber with nothing in between.
EarthAnchor™ Structural Knife Plates. These custom structural aluminum plates are concealed entirely within the timber post. They serve dual purpose: moisture barrier between the post base and the ground surface (the #1 point where timber structures fail) and structural anchor contributing to the 160+ mph wind rating. You’ll never see them. That’s the point.
Patent-pending cap system. The second-most-common moisture failure point is the top joint where the post meets the beam. WTF’s cap system seals this connection, preventing water infiltration at a joint that’s otherwise exposed to pooling from every rainstorm.
Test-assembled at the shop. Before your structure ships, it’s assembled in WTF’s facility to verify every joint, every connection, and every timber fits as engineered. This eliminates field surprises. When it arrives at your site, the pieces go where they go — because they’ve already been there once.
Protecting What Matters — Vehicles, Equipment, and Assets
A carport exists because the things you park outside are worth protecting. The question is: how much protection are you actually getting?
UV radiation is the silent destroyer. An RV’s gelcoat, paint finish, rubber seals, and tire sidewalls all degrade under sustained UV exposure. A Class A motorhome that costs $200,000-$500,000 loses measurable value for every season it sits uncovered. Gelcoat chalking, seal cracking, interior fading — these aren’t theoretical. They’re maintenance items that turn into five-figure repair bills when left unaddressed.
The same principle applies at every scale. A $60,000 truck. A $150,000 combine. A $40,000 boat. The cost of the cover is a fraction of the cost of replacing what you’re not covering.
What a timber frame carport protects:
Vehicles & Recreation — Automobiles, campers, motorcycles, ATVs, UTVs, snowmobiles, dirt bikes, trucks, boats, canoes, watercraft, RVs, mobile homes, and aircraft.
Agricultural & Farm Equipment — Tractors, combines, harvesters, hay balers, hay bales, farm trailers and wagons, rototillers, fertilizer spreaders, sawmill equipment, and bulk storage tanks.
Tools, Machinery & Storage — Skid steers, backhoes, irrigation equipment, lawn equipment, outdoor furniture, generators, firewood, and commercial or industrial gear.
From a porte-cochère at a luxury resort to a farm equipment pavilion or residential RV cover, each structure is engineered for year-round protection — safeguarding your investment for decades.
Tom and Lisa Brackett in Prescott, Arizona, learned the replacement cost lesson firsthand. Their 2019 Class C motorhome spent three summers under a fabric canopy that tore in the first monsoon and was replaced twice. Total spent on temporary covers: $1,800. Total spent on gelcoat restoration after UV damage: $4,200. When they built a WTF 16×32 timber frame RV cover in spring 2025, Lisa did the math: “We’d already spent $6,000 trying to protect this thing with disposable solutions. The timber frame will still be standing when we sell the RV and buy the next one.”
That’s the investment reframe. You’re not buying a carport. You’re buying decades of protection for everything you’ll ever park under it.
Engineering, Permits, and Why They Matter
Most carport buyers don’t think about engineering until their building department tells them they need it. By then, they’ve already bought the kit that doesn’t come with it.
The permit reality. Most jurisdictions require a building permit for any permanent carport — freestanding or attached. The permit requires structural documentation: stamped engineering drawings sealed by a licensed Professional Engineer (PE). These drawings account for your specific wind loads, snow loads (governed by ASCE 7-22 standards), seismic zone, soil conditions, and local building code requirements.
A metal carport from a big-box retailer rarely includes stamped engineering. That means you’re either building without a permit (a code violation that creates resale liability) or paying a separate engineer to evaluate a structure that wasn’t designed with engineering in mind. Either way, you’re behind.
Western Timber Frame provides stamped engineering drawings for every structure, for every jurisdiction. It’s standard — not an upgrade, not an add-on, not an afterthought. When your building department asks for documentation, you hand them a sealed set of drawings and move forward.
The anchoring question. How a carport connects to the ground determines whether it stays there. WTF’s EarthAnchor Structural Knife Plates are concealed within the post, providing both structural anchoring and a moisture barrier at the base — the #1 failure point for any timber structure. The alternative is surface-mounted brackets bolted to a concrete pad, which concentrate stress at the bolt points, trap moisture against the post base, and announce their presence to anyone who looks at the structure.
Why engineering matters at resale. An unpermitted carport is an inspection flag. A buyer’s home inspector will identify unpermitted structures, and the options are bad: disclose and discount, or demolish and remove. An engineered, permitted timber frame carport is an asset — it adds architectural value and passes inspection without hesitation.
The insurance angle. If your carport isn’t engineered and a windstorm damages it — or damages what’s under it — your homeowner’s insurance may not cover the loss. An engineered structure with documented wind load ratings gives you a defensible position.
The question to ask any carport company: “Can you provide stamped engineering drawings for my jurisdiction?” If the answer is anything other than “yes,” ask why.
How to Evaluate Any Carport Company: 7 Questions
These questions work with any company — timber, metal, aluminum, vinyl, custom, or kit. A company confident in their product will welcome every one of them.
- “What is the wind load rating of this structure, and can you provide engineering documentation?”
Good answer: a specific mph number with stamped engineering drawings for your jurisdiction.
Red flag: “It’s very sturdy” with no documentation. - “What type of joinery do you use, and how does the connection perform under load over time?”
Good answer: specific joinery method (mortise-and-tenon, CNC-cut), load distribution explanation, and how it handles seasonal wood movement.
Red flag: “Standard bolts and brackets” or “It’s all included.” - “Is the structure test-assembled before shipping?”
Good answer: “Yes — every structure is assembled in our shop to verify fit before it ships to your site.”
Red flag: “The pieces are precision-cut by machine” (cut ≠ verified). - “What species of wood do you use, and what is the stain/finish system?”
Good answer: specific species (Douglas fir, redwood, cedar), specific stain brand and UV rating, number of coats applied at the shop.
Red flag: “Pressure-treated lumber” (commodity, not craft) or unfinished wood that requires you to stain before assembly. - “Where is the structural hardware — can I see it after installation?”
Good answer: “It’s concealed within the timber — you won’t see any bolts or brackets.”
Red flag: visible brackets, bolt heads, and connector plates on every joint. - “Can this structure support additional load for solar panels, enclosed walls, or rooftop additions?”
Good answer: specific load capacity documentation, engineering for future modifications.
Red flag: “It’s designed for open-air use only” or no load data. - “What is the warranty, and what does it cover?”
Good answer: specific years, specific coverage for materials, engineering, and finish, with exclusions explained clearly.
Red flag: vague “lifetime guarantee” with no written terms.
Any company that answers all seven — clearly, specifically, with documentation — is worth your consideration. The companies that deflect are telling you what they don’t have.
Want to see how Western Timber Frame™ answers each of these 7 questions?
Request a free design consultation and bring this checklist — we welcome the comparison.
| or Call 801-331-6690

Frequently Asked Questions About Timber Frame Carports
From Concept to Cover — Your Carport, Built to Last
the right kit — pre-cut, pre-drilled, pre-stained, and test-assembled before it ever leaves the shop.
The difference between a timber frame carport and a metal carport isn’t just aesthetics. It’s the difference between a structure engineered to 120+ mph wind loads and one rated for 90. Between joinery that tightens under stress and bolts that loosen over time. Between a surface your kids can touch in July and one that sends them to the ER. Between an architectural feature that adds value at resale and a utility structure that gets flagged at inspection.
The 7-question evaluation framework works with any company because it’s based on measurable criteria, not marketing claims. Wind load ratings are documented. Joinery methods are demonstrable. Test assembly either happened or it didn’t. Stamped engineering exists or it doesn’t
If you’re protecting a vehicle worth tens of thousands of dollars — or hundreds of thousands — the cover you put over it should be built to outlast it. A timber frame carport does that. And it looks like it belongs there while doing it.
Whether you need a single-car cover for the driveway, an oversized RV shelter, a farm equipment bay, or a porte-cochère for a luxury property, the process starts the same way: a conversation with a Design Manager who asks the right questions and builds the right structure.
From concept to creation, WTF handles the heavy work. You enjoy the decades of protection, comfort, and style.

Western Timber Frame™ has built 7,000+ custom timber structures nationwide, each with stamped engineering, Dovetail Difference joinery, and optional TimberVolt pre-wired electrical. If you’d like to explore what a custom carport looks like for your vehicles and site, request a free design consultation — we’ll walk you through sizing, pricing, and configuration with full transparency.. Businesses may also use it as a covered loading space for commercial deliveries.













