One yard of mulch covers approximately a 10' x 10' area, 3" deep. To calculate the yardage that you will need, use the following formula: Length x width x depth (convert inches to feet by dividing depth by 12), divide by 27. Round up to the next whole number. This will give you the number of yards that you will need. Example: 10 x 10 x .25 = 25 divided by 27 = .926.
For Bagged Mulch:
You will need 13.5 two cubic foot bags to equal one cubic yard or 9 three cubic foot bags to equal one cubic yard.
