More than any other state east of the Mississippi, and fourth most in the country
Building a van for Tennessee
Measure first. Vans longer than 25 feet are prohibited on Rich Mountain Road, Parson Branch Road, Roaring Fork, Little Greenbrier Road and Wear Cove Road, and Wear Cove adds a ten-ton weight limit. On the Natchez Trace Parkway the ceiling is 55 feet overall including anything towed and 14 feet of height. A tall van with a roof rack should know its exact height before it meets a 14-foot bridge.
Then plan for damp. Tennessee averages 52.2 inches of rain a year and the Smokies take 55 to 85 inches. Ventilation, condensation control and somewhere to dry gear inside matter more here than deep cold insulation, though nights near 6,000 feet still get there.
A conversion is a small house on a moving, flexing, weight-limited platform. The builder insulates and lines the shell, installs the electrical system, plumbing, heat and ventilation, builds the bed, galley and storage, and cuts the holes for windows, fans and vents that you do not want to get wrong.
Some shops build complete vans to a set floor plan. Others build to order, and a few will take on partial work such as electrical only.
A typical conversion includes
01Insulation, wall and ceiling panels, and flooring
02House battery, alternator charging, solar, inverter and shore power
03Roof fan, heater, and sometimes air conditioning
04Fresh and gray water, a sink, and sometimes a shower and water heater
05Bed, galley, seating and storage
06Windows, racks, ladders, awnings and exterior lighting
How to choose a van builder
Floor plans are easy to fall for. The questions underneath them matter more.
01Decide between a shop's standard layout and a custom build. Standard layouts are faster, and the shop has already solved their problems.
02Ask what the finished van weighs with water and gear. Sprinters are sold in several gross weight ratings, and a heavy build on the lightest chassis leaves little margin.
03Ask how the electrical system is protected and documented, and whether the components can be serviced on the road.
04Ask how cabinetry is fastened to the van. Furniture that is only screwed to thin wall panels works loose on rough roads.
05Ask how added seats and seat belts are engineered and anchored if anyone rides behind the front row.
06Get the scope, price, payment schedule and delivery date in writing.
What to have ready before you ask for a quote
The van you order decides what can be built in it, so it helps to talk to a builder before you buy.
01Model year, 144 or 170 wheelbase, roof height, and two-wheel, all-wheel or four-wheel drive
02How many people sleep in it and how many ride in it
03The seasons and climates you travel in
04Whether you need to work from it
05What goes inside with you: bikes, boards, dogs
06A budget range and the date you want to be traveling
Questions people ask
Do I need to own the van before I contact a builder?
No. Many builders would rather talk first, because the wheelbase, roof height and drivetrain you order decide what can be built. Some shops can also source a van.
How long does a Sprinter conversion take?
A full custom build is usually measured in months, plus whatever wait the shop has before it can start. Standard layouts are quicker. Ask for both numbers.
Should I get the 144 or the 170 wheelbase?
The 144 is easier to park, turn and drive on tight roads. The 170 gives you room for a fixed bed and a real galley without compromise. Think about where you will actually drive it, then about how you want to live in it.
Can these builders work on a Ford Transit or Ram ProMaster?
Many do. If you are on another platform, say so in the form and we will look for shops with that experience.
How high is Tennessee?
From Nashville at 555 feet to Kuwohi (Clingmans Dome) at 6,643.
Altitude decides what your engine, your brakes and your lungs have to work with, and how late in the year the passes open.
02,0004,0006,000
Feet above sea level
Towns
Mountain CityJohnson County seat in the far northeast on TN 91 and US 421, within a few miles of both Virginia and North Carolina.2,420 ft
CrossvilleOn I-40 at the top of the Cumberland Plateau, the halfway service stop between Nashville and Knoxville.1,857 ft
DucktownCopper Basin town on TN 68 at the east end of the Ocoee Scenic Byway, near the Georgia and North Carolina lines.1,740 ft
JamestownOn US 127 on the plateau, between Big South Fork and the Obey River country.1,714 ft
ErwinOn I-26 beside the Nolichucky. Start of the Unaka Mountain circle on TN 395 and gravel Forest Road 230.1,669 ft
ElizabethtonCarter County seat on the Watauga River. TN 143 climbs from here through Roan Mountain to Carvers Gap.1,527 ft
OneidaScott County town on US 27 and the eastern approach to Big South Fork and its Bandy Creek side.1,443 ft
WartburgMorgan County seat between the Obed Wild and Scenic River and Frozen Head, on the plateau north of I-40.1,380 ft
GatlinburgNorth gateway to Great Smoky Mountains National Park. Newfound Gap Road and the Roaring Fork Motor Nature Trail both start here.1,290 ft
LaFolletteCampbell County town on US 25W below the Cumberland Mountains, under the Sundquist Unit of the North Cumberland WMA.1,073 ft
TownsendThe Blount County entrance to the park. Cades Cove, Rich Mountain Road and Parson Branch Road are all reached from this side.1,070 ft
KnoxvilleWhere I-40 meets I-75. The last large city before the Smokies, the Cherokee National Forest and the Cumberland Mountains.899 ft
LawrenceburgOn US 43 in the middle of the Tennessee stretch of the Natchez Trace Parkway, and the last real service town for many miles of it.894 ft
Tellico PlainsWest end of the Cherohala Skyway and the turn onto Forest Road 210 up the Tellico River.875 ft
ChattanoogaWhere I-75 meets I-24 at the foot of the Cumberland Plateau. Nearest city to the Ocoee gorge and the Sequatchie Valley.676 ft
NashvilleState capital where I-40, I-65 and I-24 meet. The Natchez Trace Parkway ends just southwest of the city.555 ft
Passes, high roads and summits
Kuwohi (Clingmans Dome)The highest point in Tennessee. A paved seasonal road runs to the parking area below the summit6,643 ft
KuwohiKuwohi Road: Newfound Gap Road to the Kuwohi visitor center and overlook6,643 ft
Mount Le ConteNo road to it. The Park Service says readings above 80 degrees up here are extremely rare6,593 ft
Roan High KnobCarter County, above Carvers Gap. Our own measurement at the USGS point, not an agency figure6,282 ft
Carvers GapTN 143 to Carvers Gap: Roan Mountain up through Roan Mountain State Park to the state line5,512 ft
Unaka Mountain Scenic Drive (Forest Road 230)A circle from Erwin on TN 395, Forest Road 230 and TN 1075,168 ft
Newfound Gap Road (US 441)Gatlinburg to Cherokee, North Carolina5,046 ft
Big Frog MountainPolk County, in the southern Cherokee National Forest. Our own measurement at the USGS point4,210 ft
Rich Mountain RoadCades Cove out to Tuckaleechee Cove and Townsend3,692 ft
Pass, road and summit elevations are the figures published by the agency that manages them. Town elevations are the town’s or county’s own
figure where it publishes an exact one; the rest are from the U.S. Geological Survey (3D Elevation Program at the place’s official coordinates),
retrieved September 18, 2026. Every source is listed at the foot of the page.
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