Mulch calculation - Knowledgebase Question

Question by hdroddmdpa
May 3, 2008
I have not been able to get an answer from the local gardeners about the following: How many cubic feet in a yard of mulch? I would appreciate if you can tell me how much.
Thanks, Millie

Answer from NGA
May 3, 2008


Dump truck bodies are measured by the cubic yard. One yard is one cubic yard, a measure 3' x 3' x 3', or 27 cubic feet.

To estimate your project, measure the length x width x depth, using the same units of measure for each. Use foot units for easy calculations.

Example: Say you have an area that is 12' x 18 '. You want to cover it with 6" of material.
Multiply, 12' x 18' x .5' to get 108 cubic feet. You see, 6" is .5 feet or 1/2 a foot.
Now divide 108 cubic feet by 27 cubic feet(1 yard) to get your total yardage at 4 yards.

If you want a 3" cover you use 1/4' or .25'. A four inch cover is 1/3 foot or .33', etc.

Hope this clarifies things for you!

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