This phrase refers to a tool or method used to determine the amount of landscaping rock required to cover a specific area measured in square feet. For example, one might use such a calculator to ascertain how many cubic yards of gravel are needed to cover a 200-square-foot garden bed to a depth of 3 inches.
Accurately estimating material needs prevents overspending on excess rock and the inconvenience of running short, which can delay projects. Historically, such calculations were performed manually, leading to potential inaccuracies. The advent of online calculators and specialized software has streamlined this process, increasing efficiency and precision.