How stone quantity is estimated
Landscape stone is typically ordered by the ton or cubic yard. The calculator computes the volume from the project length, width, and depth, then applies the stone density to convert volume into weight. Different stone types have different densities, so the density assumption matters.
Crushed stone, river rock, pea gravel, flagstone, and fieldstone each have different bulk densities and coverage characteristics. The calculator lets you select a stone type or enter a custom density to match the product you plan to use.