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  #1  
Old 07-29-2006, 09:42 AM
jlb
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Default square feet to cubic yards

How do I determine how many cubic yards are in 800 square feet.
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  #2  
Old 07-29-2006, 01:06 PM
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Default 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.
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  #3  
Old 07-29-2006, 01:43 PM
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Default Re: square feet to cubic yards

9 square feet to one cubic yard.
800/9 = 88.89
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  #4  
Old 07-29-2006, 02:32 PM
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Default 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  
Old 09-19-2006, 09:01 AM
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Default Re: square feet to cubic yards

Concrete - 3825 sq ft / 4 inches thich
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Old 09-20-2006, 12:01 PM
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Default 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  
Old 12-18-2007, 10:19 AM
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Default Re: square feet to cubic yards

Quote:
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  
Old 02-01-2008, 10:31 AM
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Default 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  
Old 05-06-2008, 05:58 AM
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Default 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%
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Old 06-08-2008, 09:54 AM
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Default Re: square feet to cubic yards

Quote:
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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