Most all of our bulk products are sold by the cubic yard so below is a handy calculator to help you figure out how much you will need. The easiest way to determine how much material you will need (whether it is soil, mulch, gravel or sand) is to measure the square footage you are trying to cover. This is pretty simple, just measure the width and the length, Example: If you have a flower bed that is 20 feet long and 5 feet wide you would multiply 20 x 5 = 100 square feet. A depth of 3 inches is typical for mulch. If you need help converting the square footage please feel free to call us and we will be more then happy to help!