If you have a project that requires crushed stone you may have a need to determine how many cubic yards are in a ton of material. Many trucking companies quote deliveries by the ton, and it’s important to know how to get the accurate amount. By understanding the relationship between the material you need and how much of if makes a ton, you’ll be able to get the right number.
Units are Not the Same
It is true that you are not really comparing apples to apples in this scenario. Cubic yards are a volume measure. Tons are a weight measure.
To make matters even more confusing is the fact that determining yards per ton is anything but an exact science. The weight of crushed stone in pounds per cubic yards and tons per cubic yards are approximate measures that assume all of the same material weighs the same.
Calculations Yards Per Ton for Crushed Stone
The math to determine how many cubic yards of crushed stone you will need for a given number of tons follows:
- Number of tons you need X 2000 pounds per ton = Number of pounds
- Number of pounds / pounds per cubic yard of material = Number of cubic yards needed
Let’s look at a quick example:
- Crushed stone is quoted at a weight of 2700 pounds per cubic yard.
- Your stone dealer tells you he has a truck that can deliver 20 tons of stone per load.
- You need to know who many cubic yards that comes out to.
Here is the math:
20 tons X 2000 pounds per ton = 40,000 pounds
40,000 pounds / 2700 pounds per cubic yard = 14.29 cubic yards
One 20-ton truckload of crushed stone will yield 14-15 cubic yards of crushed stone. Again, this is not an exact measurement and a round figure is often close enough for these calculations.
Armed with the final cubic yard figure you will be able to determine how many truckloads of crushed stone you will need.
Crushed Stone Considerations
When doing the calculations to determine how many cubic yards are in a ton of crushed stone, there are few factors that should be kept in mind:
- This determination is not an exact science as mentioned earlier.
- Ask your supplier what figure is used for the weight of the stone per cubic yard. The figure may vary from around 2,700 to 28,00 pounds per cubic yard. Some companies will just use a round figure of 3000 pounds per cubic yard.
- Not all trucks will hold 20 tons per load. Again, find out from the dealer how big a truck load is. The size of the truck will not change the calculations any, but it will help determine how many loads you need for your project.
If you have to figure how many yards of crushed stone are in a ton don’t fret. Knowing some math and a few simple relationships will give you the figure you need. Braen Stone is here to answer any questions and also offers a materials calculator that will make this process much easier.