★★★★★ 4.8 on
300+ Vans Built
Lifetime Cabinet Warranty (original owner)

What's included & upgradable

Seating

Included

Available upgrades

  • Captain swivel seat (passenger side)Captain swivel seat (passenger side)
  • Captain swivel seat (driver side)Captain swivel seat (driver side)
  • Jump seat between front seats for 3rd passengerJump seat between front seats for 3rd passenger
Sleeping

Included

  • Bed: near queen, extendible to near kingBed: near queen, extendible to near king
  • Custom cut memory foam mattress (6")Custom cut memory foam mattress  (6")

Available upgrades

  • Upgrade bed to bambooUpgrade bed to bamboo
  • Pop-topPop-top
Kitchen

Included

  • 60" galley hand crafted bamboo counter top, sink and faucet60" galley hand crafted bamboo counter top, sink and faucet
  • Fridge/freezer (80L)Fridge/freezer (80L)
  • Lagun swivel tableLagun swivel table

Available upgrades

  • Upgrade to birch butcherblock countertop (from bamboo)Upgrade to birch butcherblock countertop (from bamboo)
  • Upgrade to walnut butcherblock countertop (from bamboo)Upgrade to walnut butcherblock countertop (from bamboo)
  • Upgrade to large fridge/freezer (130L)Upgrade to large fridge/freezer (130L)
  • Induction stove (kept in drawer)Induction stove (kept in drawer)
  • Single burner induction stove set into counter topSingle burner induction stove set into counter top
  • Microwave built inMicrowave built in
  • Extra lagun table mount by passenger seatExtra lagun table mount by passenger seat
  • Fold out tableFold out table
Shower and Toilet

Included

  • Storage bench (passenger side)Storage bench (passenger side)
  • 20 gallons fresh water (in wheel well box)20 gallons fresh water (in wheel well box)
  • Gray water system (5 gal under sink)Gray water system (5 gal under sink)

Available upgrades

  • Toilet bench upgrade (custom designed to fit toilet)Toilet bench upgrade (custom designed to fit toilet)
  • Bench shower (upgrade from storage bench, requires undermounted grey water tank)Bench shower (upgrade from storage bench, requires undermounted grey water tank)
  • Bench and back cushion setBench and back cushion set
  • Exterior shower (curtain and plumbing)Exterior shower (curtain and plumbing)
  • Propane heater for exterior showerPropane heater for exterior shower
  • Electric water heater (4 gal)Electric water heater (4 gal)
  • Drinking water filterDrinking water filter
  • Undermount gray water system (required for bench shower)Undermount gray water system (required for bench shower)
  • Gray water heating blanketGray water heating blanket
  • Cassette toilet (Dometic)Cassette toilet (Dometic)
  • Separating toilet (Joolca)Separating toilet (Joolca)
  • Dry flush toilet (Modiwell)Dry flush toilet (Modiwell)
  • Dry flush toilet (Laveo)Dry flush toilet (Laveo)
Storage

Included

  • Proprietary wheel well boxes (housing electrical and water systems)Proprietary wheel well boxes (housing electrical and water systems)
  • Full length upper cabinet (driver side)Full length upper cabinet (driver side)

Available upgrades

  • Upper cabinet (passenger side)Upper cabinet (passenger side)
  • Headliner shelfHeadliner shelf
  • Slide out tray in the garage (black hex)Slide out tray in the garage (black hex)
  • L-track in the garage (per run)L-track in the garage (per run)
Interior & Style

Included

  • Coindot floorCoindot floor
  • Prefinished birch walls and ceiling, and upholstered pillarsPrefinished birch walls and ceiling, and upholstered pillars

Available upgrades

  • Upgrade floor (from coindot)Upgrade floor (from coindot)
  • Upgrade ceiling (from pre-finished birch)Upgrade ceiling (from pre-finished birch)
  • Upgrade walls (from pre-finished birch)Upgrade walls (from pre-finished birch)
  • Upgrade door jambsUpgrade door jambs
  • Upgrade cabinet colorsUpgrade cabinet colors
  • Bug screens for rear doorsBug screens for rear doors
  • Bug screen for sliding doorBug screen for sliding door
  • Window covers (set of 7)Window covers (set of 7)
Climate

Included

  • 4-season insulation (synthetic)4-season insulation (synthetic)
  • Vent fan (front position)Vent fan (front position)

Available upgrades

  • 4-Season insulation (upgrade to wool)4-Season insulation (upgrade to wool)
  • Extra vent fan (rear position)Extra vent fan (rear position)
  • AC Velit 2000R (requires 10kWh or more, rear location)AC Velit 2000R (requires 10kWh or more, rear location)
  • Wall fan by bedWall fan by bed
  • Gas or diesel cabin heaterGas or diesel cabin heater
  • Gas or diesel cabin heater (high output)Gas or diesel cabin heater (high output)
  • Lizard skin thermal barrierLizard skin thermal barrier
  • Sound deadeningSound deadening
Electricity

Included

  • 5kWh lithium smart electrical system (300W solar, shore power, alternator charging)5kWh lithium smart electrical system (300W solar, shore power, alternator charging)
  • Lighting package (ceiling, upper cabinet LEDs, reading lamp with USB)Lighting package (ceiling, upper cabinet LEDs, reading lamp with USB)
  • Outlet package (USB, 12V, and 110V)Outlet package (USB, 12V, and 110V)

Available upgrades

  • Upgrade to 10kWh systemUpgrade to 10kWh system
  • Upgrade to 15kWh systemUpgrade to 15kWh system
  • Equipment to upgrade alternator charging by 50%Equipment to upgrade alternator charging by 50%
  • Secondary alternator charging system (UPGRADE OFFERING TO 4X CHARGING COMING SOON!)Secondary alternator charging system (UPGRADE OFFERING TO 4X CHARGING COMING SOON!)
Windows & Flares

Included

  • Screened awning window (driver side)Screened awning window (driver side)

Available upgrades

  • Fixed glass window in sliding doorFixed glass window in sliding door
  • Bunk windows (set of 2)Bunk windows (set of 2)
  • Fixed rear door windows (set of 2)Fixed rear door windows (set of 2)
  • Flarespace flares with slider window (passenger side)Flarespace flares with slider window (passenger side)
  • Flarespace flares with slider window (driver side)Flarespace flares with slider window (driver side)
Adventure Gear

Included

Available upgrades

  • Awning (Fiamma)Awning (Fiamma)
  • Side stepsSide steps
  • Ladder and tire carrierLadder and tire carrier
  • Roof rackRoof rack
  • Side ladderSide ladder
  • Starlink Mini Roam - roof mountedStarlink Mini Roam - roof mounted
  • WeBoost cell signal boosterWeBoost cell signal booster
  • Van Compass suspension upgradeVan Compass suspension upgrade
  • Offroad wheel and tire packageOffroad wheel and tire package
  • Front bumperFront bumper
  • WinchWinch
Safety

Included

  • Fire extinguisherFire extinguisher
  • Smoke detectorSmoke detector

Available upgrades

Why the DUO is your ultimate adventure van

DUO tailored comfort interior

Tailored comfort for every journey

The DUO features a near-queen bed extendable to near-king size. The custom-cut memory foam mattress ensures restful sleep, while the modular layout adapts to your needs with unmatched versatility.

DUO functional interior

Functional and stylish interior

Step into a beautifully crafted space with prefinished birch walls, handcrafted countertops, and a 60" galley complete with a sink and fridge. Ample storage, optional upgrades, and smart features for added convenience.

DUO climate and power systems

Advanced climate and power solutions

Enjoy year-round adventures with 4-season insulation, a lithium smart electrical system, and solar charging. Upgradable options like a 9,000 BTU AC and diesel heater keep you comfortable on or off the grid.

DUO adventure ready

Adventure-ready versatility

From exterior showers and bench shower systems to garage storage for your gear, the DUO is built for real adventures. Add a WeBoost signal booster, Starlink, or suspension upgrades for the ultimate setup.

Customer Reviews

What Our Customers Say

★★★★★ 4.8 · 150+ Google Reviews
★★★★★

"The Vansmith team exceeded every expectation. Our Sprinter build is absolutely stunning — the craftsmanship, attention to detail, and communication throughout were all top notch. Best money we've ever spent."

★★★★★

"We drove our completed van from Boulder to Patagonia — zero issues. The electrical, insulation, and cabinetry have held up perfectly through two years of full-time van life. Couldn't recommend The Vansmith more highly."

★★★★★

"From the initial design consultation to picking up our finished van, every step was smooth and professional. The team listened to exactly what we wanted and delivered something even better than we imagined."

★★★★★

"Incredible work. They converted our Transit into a rolling home that's both beautiful and incredibly functional. The bamboo cabinetry, galley kitchen, and electrical system are all flawless. Worth every penny."

★★★★★

"We've had our van for 18 months and taken it across 30 states. Not a single thing has come loose, warped, or broken. The build quality is genuinely on another level compared to what we saw elsewhere."

★★★★★

"The team was transparent about timelines, kept us updated throughout the build, and delivered on every promise. Our van is exactly what we dreamed of — functional, beautiful, and built to last."

★★★★★

"I visited three different van builders before choosing The Vansmith. The difference in quality, expertise, and professionalism was immediately obvious. Our build came out perfect and on time."

★★★★★

"Our solar + lithium setup has run perfectly through Colorado winters, desert summers, and everything in between. The Vansmith knows electrical systems for van life better than anyone we spoke with."

★★★★★

"The Vansmith turned our vision into reality. We had very specific requests — custom flare space, roof rack, and a crosswise bed — and they executed everything perfectly. It's the van we always wanted."

Frequently asked questions

What's included in the base DUO conversion?
Every DUO includes a near-queen VersaBed with memory foam mattress, 60" galley with sink and faucet, 80L fridge/freezer, 20 gallons of fresh water, 2kWh lithium electrical system with solar, full lighting and outlet packages, 4-season insulation, ceiling fan, prefinished birch interior, and a fire extinguisher with CO monitor.
How long does a DUO build take?
Tailored DUO builds typically take 12-16 weeks from design approval. Pre-built models with standard configurations are available in 8-10 weeks. Timeline depends on customization level and current queue.
Can I customize the features and layout?
Absolutely. The DUO is our most flexible platform. You can upgrade any category — add a bench shower, pop-top, cabin heater, AC, suspension upgrades, and more. Use our Build Configurator to explore all options, or schedule a consultation to discuss your vision.
What warranty do you offer?
All Vansmith builds come with a lifetime cabinet warranty for the original owner, covering our custom cabinetry and woodwork. Installed components (appliances, electrical, plumbing) carry their manufacturer warranties. We stand behind our work.
Do you offer financing?
Yes. We partner with several RV lending institutions offering competitive rates. Visit our RV Loan Calculator to estimate monthly payments based on your credit profile, or ask us about financing during your consultation.
Do I need to provide the base vehicle?
The conversion cost shown does not include the base Sprinter or Transit van. A typical base vehicle costs around $68,000. We can help you source one, or you can bring your own. We build on both Mercedes Sprinter (144" and 170") and Ford Transit (148" and 148" extended) platforms.
What's the difference between DUO models?
The DUO comes in four configurations: DUO (short wheelbase, no shower), DUO S (short with bench shower), DUO XL (long wheelbase, no shower), and DUO XLS (long with bench shower). All share the same core layout — the difference is interior length and shower option.

Ready to Start Your Build?

Our team in Boulder is ready to help you design the perfect van for your lifestyle.

Or call us at (303) 414-6834 · info@thevansmith.com