A standard tandem axle dump truck holds roughly 10 to 14 cubic yards struck level, a single axle around 5 to 7, and a tri axle 15 to 18. On site the box size is rarely the number that decides the load, because heavy material hits the legal axle weight long before the body is full: gravel runs about 1.4 tons a cubic yard and wet topsoil is not far behind.
The sizes, in cubic yards
Single axle trucks carry about 5 to 7 yards and are the ones that fit a residential driveway. Tandem axles, the common highway dump truck, carry 10 to 14. Tri axles reach 15 to 18. Off road articulated haulers used on earthworks are a different class again and are measured in tons rather than yards because they never touch a public road.
Why weight fills it before volume does
Legal axle weights cap what a truck may carry regardless of how much room is left in the bed. With gravel near 1.4 tons a yard, a tandem axle is usually at its limit around ten yards, well short of a level fill. Light material behaves the other way: mulch and wood chips fill the body and never trouble the scales.
Counting the loads for your job
Work in cubic yards. Length times width times depth in feet, divided by twenty seven, gives the yards you need, and adding ten percent covers compaction and spillage. A four inch layer over a thousand square feet is about twelve yards, which is one tandem load of mulch and closer to two of crushed stone.
Hiring the truck against buying the haul
Two prices exist for the same material. Delivered by the load, you pay for the stone and the trip together and the truck leaves. Hired by the day from a rental yard, the truck is yours to shuttle spoil off site as an excavator digs. The second only pays when the machine would otherwise sit waiting for a return trip.
Questions people ask about how many yards in a dump truck
How many yards of gravel fit in a dump truck?
Usually about ten in a tandem axle, because gravel weighs roughly 1.4 tons a cubic yard and the axle limit arrives before the body is full. Lighter materials such as mulch fill the same truck to its full 12 to 14 yards without any weight problem.
How many tons can a dump truck carry?
A tandem axle highway truck typically carries around 13 to 15 tons of payload, and a tri axle rather more. The exact figure depends on the truck's own weight and the state's axle rules, which is why haulers quote in tons for stone and in yards for mulch.
How many yards do I need for a driveway?
Measure it, multiply length by width by the depth of stone in feet, and divide by twenty seven. A twelve by fifty foot drive at four inches deep works out near seven and a half yards, so order eight and expect a little left over rather than running short.
Can I rent a dump truck by the day?
Yes, machinery yards in many markets rent single and tandem axle dump trucks by the day or week alongside the excavators. Check the license class your state requires for the weight, because that, rather than the rental counter, is what usually stops a customer driving one away.