Cargo truck: what the term covers and how to pick the right one

"Cargo truck" is one of those words that means something different depending on who says it. A moving company means a box truck. A farm supply store might mean a stake bed. An army quartermaster means a six-wheel-drive tactical truck. A dealer listing uses it for anything with a cargo area. This guide sorts out what the term covers, how federal rules see it, and which questions turn a vague "cargo truck" into the specific truck you need.

What is a cargo truck?

At its plainest, a cargo truck is a truck built to carry goods instead of passengers. Federal rules use the same idea: under 49 CFR 390.5, a truck is a self-propelled vehicle designed or used to transport property, as opposed to a truck tractor, which is built mainly to pull trailers.

SOURCE:eCFR, 49 CFR 390.5, OCT 2026

In everyday use, "cargo truck" often means a straight truck with an enclosed box: the cargo box truck that delivers furniture, parcels and appliances. Box truck cargo rides inside walls and a roof, behind a roll-up or swing door, protected from weather and theft.

Types the term covers, decoded

Our box truck types guide goes deeper on the enclosed bodies, and the crew cab box truck guide covers the four-door version for crews.

Delivery cargo trucks

The delivery cargo truck is the box truck you see on residential streets and at loading docks. What makes it a delivery truck is the equipment, not the size class:

• A liftgate to lower freight to the curb where there is no dock.
• A side door on some builds, for multi-stop routes where the back of the box fills first.
• Shelving or e-track to keep many small orders from shifting.

These trucks run the full range, from rental-size boxes to 26 footers. At the small end, Penske's 12 ft box is rated 9,900 lb; at the top of the common range, U-Haul's 26 ft truck is rated 25,999 lb, one pound under the CDL line.

SOURCE:Penske Truck Rental, OCT 2026;U-Haul (page snapshot 2026-09-28, Internet Archive), OCT 2026

Military cargo trucks

A military cargo truck is built for terrain and logistics, not city streets. A well-known family is the FMTV (Family of Medium Tactical Vehicles). Its manufacturer, Oshkosh Defense, lists the current FMTV A2 in 4x4 versions rated 2.5 and 3 tons and 6x6 versions rated 8, 8.8 and 10 tons. The 2.5-ton cargo van version carries 5,000 lb in 598 cubic feet.

SOURCE:Oshkosh Defense, OCT 2026

If you are considering a retired military truck for civilian work, check with your state's motor vehicle agency about titling, registration and road use before you buy, and price parts and service near you. A tactical truck that is easy to buy can be hard to keep on the road.

How weight decides the rules

Whatever the body, the truck's gross vehicle weight rating (GVWR) on the door-jamb sticker decides the federal rules:

• CDL: needed for a single truck rated 26,001 lb or more, or for placarded hazmat.
• Commercial motor vehicle: a truck rated 10,001 lb or more used in interstate commerce falls under FMCSA safety rules and needs a USDOT number.

SOURCE:eCFR, 49 CFR 383.5, OCT 2026;eCFR, 49 CFR 390.5, OCT 2026

So two trucks that look alike can fall under very different rules. Our box truck sizes chart shows where the common sizes land.

Five questions before you buy

1. What is the cargo? Enclosed and dry, temperature-controlled, or open and strapped? That picks the body.
2. How much does a typical load weigh, and how big is it? Compare weight with payload, and pallets or cubic feet with the floor and volume.
3. Who will drive it? If anyone without a CDL will drive, stay at or under 26,000 lb GVWR.
4. Where does it deliver? No dock means a liftgate. Tight streets argue for a shorter box.
5. What shape is it in? For a used truck, check the GVWR sticker, service records, door, floor and liftgate. Our used box truck guide has the full inspection.

The truck size calculator helps with question 2. For what kinds of freight each body suits, see our box truck freight guide.

What it means for the loads you can book

For an owner hauling for brokers, the general term is never specific enough. Brokers post loads by equipment type and size: 26 ft box with liftgate, reefer box, flatbed. The more precisely you can describe your truck, the faster you can tell which loads fit.

Not sure which equipment type we would list you under? The homepage shows every truck we dispatch.

SOURCE:eCFR, 49 CFR 390.5, OCT 2026;eCFR, 49 CFR 383.5, OCT 2026;eCFR, 49 CFR 390.5, OCT 2026;Oshkosh Defense, OCT 2026;U-Haul (page snapshot 2026-09-28, Internet Archive), OCT 2026;Penske Truck Rental, OCT 2026

Questions box truck owners ask

Q-01What is the difference between a cargo truck and a box truck?

A box truck is one kind of cargo truck: a straight truck with an enclosed box on its frame. Cargo truck is the wider term for any truck that carries goods, including flatbeds, stake beds, refrigerated trucks and tractor-trailers. When a listing says cargo box truck, it means the enclosed kind.

Q-02What is a military cargo truck?

A tactical truck built to move troops and supplies where the mission requires. A well-known example is the Family of Medium Tactical Vehicles (FMTV), which its maker, Oshkosh Defense, lists in 4x4 versions rated 2.5 and 3 tons and 6x6 versions up to 10 tons. Its 2.5-ton cargo van version carries 5,000 lb.

Q-03Do you need a CDL to drive a cargo truck?

Only if it is rated 26,001 lb GVWR or more, if it tows a trailer that pushes the combination over the limits, or if it hauls placarded hazmat. The small and mid-size rental box trucks we checked are all rated well under it, and the 26 ft rental trucks we checked sit right at the line, at 25,999 or 26,000 lb.

Q-04What size cargo truck do I need?

Start from your typical load, not your biggest one. Count pallets or cubic feet, add up the weight, and check both against the truck's floor, volume and payload. A load can fill the floor before it reaches the weight limit, or the other way round. Our truck size calculator runs that math for you.