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  • square feet to cubic yards

    How do I determine how many cubic yards are in 800 square feet.

  • #2
    Re: square feet to cubic yards

    I think it would be square feet in one cubic yard divided into 800.

    27 = square feet in one cubic yard

    800/27=29.630

    Hope this helped you.

    Comment


    • #3
      Re: square feet to cubic yards

      9 square feet to one cubic yard.
      800/9 = 88.89

      Comment


      • #4
        Re: square feet to cubic yards

        It depends on the thickness.

        I assume this is something like sand or gravel or soil. Just need to know how thick you plan on spreading it.

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        • #5
          Re: square feet to cubic yards

          Concrete - 3825 sq ft / 4 inches thich

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          • #6
            Re: square feet to cubic yards

            3825 square foot * (4 inches / 12) foot = 1275 cubic foot

            1275 cubic foot = 47.222 cubic yard

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            • #7
              Re: square feet to cubic yards

              Originally posted by Unregistered
              9 square feet to one cubic yard.
              800/9 = 88.89
              There are 9 square feet to one SQUARE yard, not cubic yard.

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              • #8
                Re: square feet to cubic yards

                There are 81 square feet to a cubic yard, providing the depth is one foot.

                The typical formula for conversion is (Length in Feet X Width in Feet X Depth in Feet) / 27 = CY.

                Example: 100' (L) X 200' (W) X 6" (D)
                = 20000 X .5
                = 10000 SF / 27 = 370.37 CY

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                • #9
                  Re: square feet to cubic yards

                  You need a thickness measurement as well ie square is 2 measurements, cube is 3

                  since 1 cubic yard = 27 cubic feet ( 3'x3'x3')

                  Let's say you are using sand 12" thick over 800 square feet,
                  You'll need a common denominator so 12" = 1 foot thick

                  1X800 = 800 cubic feet/ 27 cubic feet(feet in a cubic yard)
                  = 29.62 cubic yards at 1 foot thick

                  if it's 1" thick.. it's 29.62x1/12 (since 1 " is 1/12th of a foot)
                  = 2.47 cu yds

                  if it's 4" thick.. it's29.62 x 4/12 (4/12=.333) so it's 29.62 x .333
                  = 9.86 cu yds

                  Now.. if you're using topsoil... for under sod or for a garden factor in compression. add about 15%

                  Comment


                  • #10
                    Re: square feet to cubic yards

                    Originally posted by Robert Fogt
                    It depends on the thickness.

                    I assume this is something like sand or gravel or soil. Just need to know how thick you plan on spreading it.
                    I need 6 inches depth over 400 square feet

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                    • #11
                      Re: square feet to cubic yards

                      Originally posted by Unregistered
                      I need 6 inches depth over 400 square feet
                      if you need to know how many cubic feet you need to cover 400 sq ft just divide the 400 by 2 because 6" goes into a foot twice.

                      you would need 200 cubic feet to cover that area

                      or aprox. 7 and a half cubic yards

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                      • #12
                        Re: square feet to cubic yards

                        what difference does it makes sense if it works and thsis does every time I tried it several times, and if you have square feet instead of square yards you just eliminate the step of multiplying by nine, remembering 324 is much easier than remembering a different number for each depth of concrete, I do this about 70 times a month for lettings and this is going to make my life much easier.


                        I Thank YOU

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                        • #13
                          Re: square feet to cubic yards

                          Thanks Mr. Fogt for putting this debate into simpler more understandable terms.

                          I was confused by X 9 = ??? I'm still missing the density factor and that can be gotten by calling or visiting one of the many pits in my area.

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                          • #14
                            Re: square feet to cubic yards

                            In case you are unsure, the previous answer is correct. There are 27 square feet in a cubic yard.

                            (There are 9 square feet in a SQUARE yard.)

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                            • #15
                              Re: cube to square feet

                              I have a product that spreads over 5000 cu ft. How many square feet is 5000 cu ft?

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