Every carrier eventually asks which trailer makes the most money. The honest answer: the highest rate and the highest profit are not the same thing. Here's how the three main trailer types really compare.
Dry van is the most common trailer on the road, and for good reason. Freight is everywhere — consumer goods, packaged food, retail — so you'll rarely struggle to find a load. Loading is simple, the equipment is cheap to buy and maintain, and almost anyone can run it without special skills.
The trade-off is that easy access means more competition, so per-mile rates tend to sit at the bottom of the three. Dry van is where most new carriers start because the barrier to entry is low and freight volume is steady.
Refrigerated trailers haul temperature-controlled freight — produce, meat, dairy, frozen goods, and pharmaceuticals. Rates usually run higher than dry van, and demand holds up well because food ships year-round.
But the extra money comes with extra cost. The reefer unit burns its own fuel and needs its own maintenance, the trailer costs more up front, and temperature-sensitive loads mean stricter requirements, more dock time, and more detention risk. A reefer can also haul dry freight when needed, which adds flexibility.
Flatbed hauls what won't fit in a box — steel, lumber, machinery, building materials. Rates are often the strongest of the three because the work is harder and fewer drivers do it well.
The catch is the labor and the know-how. You're strapping, chaining, and tarping loads yourself, often in bad weather, and load securement is a real safety and compliance responsibility. Flatbed rewards experience, and it's tougher for a brand-new driver to jump into.
Rate per mile only tells half the story. What matters is what's left after fuel, equipment, maintenance, and your time — your true cost per mile. A flatbed load at a high rate can net less than a clean dry van run if it burns a day of tarping and deadhead. The right trailer depends on your lane, your experience, and the freight in your region — the same logic that shapes the owner-operator math.
Whatever you pull, the winner is the load that actually profits. TruckSpot Dispatch scores each load's true margin — after fuel, driver pay, and overhead — before you accept it, so you're comparing net, not headline rates. Add settlements, invoicing, IFTA, and a driver app, and one person can run the whole operation.
See your true per-load profit — free 14-day trial →Flatbed and reefer loads usually post higher per-mile rates than dry van, but they also carry higher costs and demands — tarping and securement for flatbed, fuel and maintenance for the reefer unit. The most profitable choice is the one where your net per mile, not the headline rate, comes out ahead.
Generally yes. Dry van has the most available freight, the simplest loading, and the lowest equipment and skill barrier, which makes it a common starting point for new carriers even though rates are typically lower.
The refrigeration unit burns its own fuel, needs regular maintenance, and reefer trailers cost more to buy. Temperature-controlled freight also brings stricter requirements and more time at docks, all of which eat into the higher rate.