Stone Dust Calculator
In 2020, the United States produced 1.46 billion tons of crushed stone. Crushed stone comes in different sizes, from 2 to 4 inches down to 3/4 inch, and is key for foundations under patios, driveways, and for drainage. The formula for the amount of crushed stone you need is: (Length x Width x Depth) / 27 = Cubic Yards of Crushed …