Calculate Topdressing Needed to Fill Aeration Holes Total square feet*Number of aeration holes per square foot*Diameter of aeration holes*Examples: 1/4" = 0.25, 3/8" = 0.38, 1/2" = 0.50, 3/4" = 0.75Radius of aeration holesLength of aeration hole*Measured in inchesTotal square feet neededCubic feet neededCubic yards of topdressing sand to fill holesAdd 25% for sand that falls on surface & wasteTons of topdressing sand neededWould you like a price quote from our Sales Department?*YesNoName First Last Email PhoneAdditional information or questions Calculate Materials