What is a dry van in trucking?
A dry van is a fully enclosed trailer used to haul non-perishable, non-hazardous freight — typically 53 feet long with a cargo capacity around 45,000 pounds and 3,800 cubic feet. It's the most common trailer type in North American trucking, accounting for roughly 70% of all truckload freight.
A dry van is the boxy, fully-enclosed semi-trailer most people picture when they think of an 18-wheeler. Standard dimensions in North America are 53 feet long, 8.5 feet wide, and 13.5 feet tall externally — internal cargo space runs about 3,800 cubic feet with a legal payload of roughly 45,000 pounds once you net out the tractor and trailer tare weight. Dry vans haul anything that doesn't need temperature control, doesn't qualify as hazardous, and fits through a swing-door or roll-door rear opening: consumer goods, packaged food, paper products, retail apparel, electronics, building materials, and so on. The trailer has no insulation, no refrigeration, and no ramp — freight is typically loaded and unloaded with a forklift at a dock with a level door height. Because dry vans are interchangeable across thousands of carriers and shippers, spot rates for dry van are the most-watched indicator of overall freight market conditions; the DAT National Van Rate Index moves with every CPI release. A working dry van carrier typically owns or leases more trailers than tractors (1.5-2:1 ratio is common) so loaded trailers can stage at customer docks without tying up a tractor.
- How much weight can a dry van haul?Legal maximum gross vehicle weight in the US is 80,000 lbs without an oversize permit. Subtract roughly 35,000 lbs of tractor + trailer + fuel and you're left with about 45,000 lbs of usable cargo payload. Lighter tractors (day cabs, lightweight aerodynamic specs) can push that to 48,000 lbs. State permit loads can go higher, but heavy loads typically go on a flatbed or step-deck rather than a dry van.
- What's the difference between a dry van and a reefer?A reefer (refrigerated trailer) is a dry van plus insulation, a refrigeration unit on the nose, and reinforced flooring/walls to handle washdowns. Reefers can run dry — many reefer carriers backhaul dry-van freight to keep miles loaded — but a dry van can never haul temperature-sensitive freight. Reefer trailers cost about 50-80% more than dry vans and weigh 1,500-2,500 lbs more, which cuts into payload.
- Can dry vans haul hazmat?Some hazmat classes ship in dry vans (small quantities of paint, lithium batteries, consumer aerosols), but the carrier needs hazmat-endorsed drivers and the freight has to be properly placarded, blocked, and braced. Bulk hazmat liquids and gases ship in tankers, not dry vans. Most general dry van carriers actively decline hazmat to avoid the regulatory overhead.