In much of the state more than 40 percent of it falls on the ten wettest days of the year
Building a van for the Ozarks
A van does well here because almost all of the legal driving is road driving. The Forest Service allows cars, trucks and vans on any open numbered Forest Service road, and the Motor Vehicle Use Map decides which those are. What a van meets is gravel, tight ridge-top corners, and low-water crossings where a long wheelbase and a low front end are the limits.
Plan for humidity and for freeze. Precipitation runs 35 to 55 inches a year and MoDOT reports 8 to 24 inches of snow with freezing rain a regular event. Ask a builder about condensation control, insulation for a damp cold, and where the chains live.
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 Missouri?
From Poplar Bluff at 362 feet to Taum Sauk Mountain at 1,772.
Altitude decides what your engine, your brakes and your lungs have to work with, and how late in the year the passes open.
02,000
Feet above sea level
Towns
CassvilleSouthwest corner of the forest. The gravel half of the Sugar Camp scenic byway leaves Highway 112 just south of Roaring River State Park.1,307 ft
SpringfieldThe largest city in the southwest and the practical staging point for the Ava, Cassville and Willow Springs country. The Forest Service puts Table Rock Lake and Wilson’s Creek National Battlefield just south of town on the forest’s southwestern boundary.1,303 ft
AvaAva-Cassville-Willow Springs Ranger Station at 1006 S. Jefferson. The Glade Top Trail scenic byway begins a few miles south of town off Highway 5.1,281 ft
SalemSalem Ranger District office at 1301 South Main Street. The road south leads to Loggers Lake, Sutton Bluff and the upper Current River.1,183 ft
RollaWhere I-44 crosses the forest. The Mark Twain National Forest supervisor’s office is at 401 Fairgrounds Road, and Fort Leonard Wood lies west with national forest on three sides of it.1,119 ft
West PlainsServices on US 63 in the Willow Springs country, between the Eleven Point and the North Fork.1,003 ft
IrontonArcadia Valley, under the state high point. Taum Sauk Mountain State Park and Johnson’s Shut-Ins are both a short drive away.906 ft
PotosiPotosi and Fredericktown district country. Council Bluff and Red Bluff campgrounds run from late April to late October, and Council Bluff sits on the largest lake on the national forest.901 ft
Park HillsSt. Joe State Park sits on the edge of town, one of only two off-road riding areas in the Missouri park system and the one that takes four-wheel vehicles, on old lead tailings.760 ft
FredericktownThe town nearest Rockpile Mountain Wilderness and Marble Creek, in the old lead country of the St. Francois Mountains.741 ft
WarsawOn the Osage at Harry S. Truman Reservoir, with the Corps of Engineers project office and visitor center and a ring of lakeside campgrounds.715 ft
ColumbiaCentral Missouri on I-70, roughly midway along the 240-mile Katy Trail. Finger Lakes State Park and its off-road area lie just north of town, and Rock Bridge Memorial State Park maintains the Katy between Mokane and Pilot Grove.707 ft
EminenceBetween the Current and the Jacks Fork, with Alley Spring to the west and Round Spring to the north. The county roads that reach the legal fords run from here.669 ft
Van BurenHeadquarters of Ozark National Scenic Riverways and the Big Spring entrance station. Big Spring itself is four miles south.475 ft
DoniphanThe town for the Eleven Point Ranger District and the lower Current, close to the Arkansas line.402 ft
Poplar BluffSoutheast Missouri services where the Ozark hills meet the bootheel flatland. The Forest Service puts Mingo National Wildlife Refuge and Lake Wappapello on the forest’s eastern boundary.362 ft
Passes, high roads and summits
Taum Sauk MountainThe highest point in Missouri, in Iron County. The USGS publishes 1,772 feet; our own reading of the elevation surface at its map point gives 1,7711,772 ft
Taum Sauk Mountain State ParkHighway CC off Highway 21 south of Ironton1,772 ft
Buford MountainIn Iron County, north of Taum Sauk in the St. Francois Mountains1,745 ft
Bell MountainIn Iron County, the high ground inside the 9,143-acre Bell Mountain Wilderness1,703 ft
Blue Buck KnobIn Douglas County, the summit the national forest scenic byway is named for1,460 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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