Dump trucks come in many sizes, and the capacity you can legally carry depends on both the bed volume and the weight limit.
Common sizes
Small single axle trucks often carry around 5 to 6 cubic yards. Tandem axle trucks commonly carry 10 to 14 cubic yards. Large tri axle and quad axle trucks may carry 16 to 20 cubic yards or more. Always confirm the capacity with the hauler.
Volume is not the limit for heavy loads
A truck may have room for 12 cubic yards of gravel but be allowed to carry only about 8 or 9 cubic yards by weight. Gravel weighs about 1.4 tons per cubic yard, so a 15 ton legal payload limits the load to about 10 cubic yards.
How to size your order
Calculate the cubic yards you need, then divide by the capacity the supplier says the truck can carry for your material. Ask if there is a minimum load or a fee for a partial load.
Measuring a truck bed
Multiply the inside length, width, and fill height in feet, and divide by 27. Our dump truck calculator does this for you and compares the weight with the material you choose.
Frequently asked questions
How many yards does a tandem dump truck carry?
Often 10 to 14 cubic yards by volume, and less for heavy materials.
Is a heaped load bigger than a struck load?
Yes. A heaped load stands above the sides and can add 10 to 30 percent, where it is allowed.
Who sets the weight limit?
The truck rating and the road rules in your area do.