How many cubic yards for a 20x12 slan 4 inches thick

Each cubic foot would produce 48 square feet and there are 3 x 3 x 3 = 27 cubic feet in a cubic yard.

First step - convert everything to feet - 5" is 5/12 of a foot

40 x 4 x 5/12 = 66.6 cubic feet.

Since a cubic yard is 3 feet by 3 feet by 3 feet, there are 27 cubic feet in a cubic yard.

66.6 cubic feet / 27 cubic feet/cubic yard = 2.5 cubic yards.

Good luck.

Paul

Since 4 inches is 1/3 foot (.333), you first compute cubic feet. The equation is:

2800 divided by .333 = 933.33 cubic feet

Next divide by 9 to get (cubic) yards:

933.33 divided by 9 = 103.703 yards

That may be ok for the US, but in Europe you would need cubic metres.
I yd = 0.914 m, 1 cubic yd = 0.914 x .914 x .1914 = 0.764
So 14.66 cu. yds is 14.66 x 0.764 = 11.2 cubic metres - with a bit of luck!

60 x 4 x .33 = 79.2 cubic feet. 27 cubic ft = 1cubic yard. 79.3 / 27 = 2.9 cubic yards

open a calculator and multiply 5280x12x..33

AC is approx. 145 lbs per cubic ft.
there are 27 cubic ft in 1 cubic yard
60 tons x 2000 = 120000 divided by 145 = 827.58 cubic ft divided by 27 = 30.65 cubic yards

square yards would depend on thickness of AC.
you can take thickness x sq ft to get cubic ft

in concrete 1 cubic yard =
4 inch thickness = 81 sq ft or 9 sq yrds
6 inch thickness = 54 sq ft or 6 sq yards

Calculating the cubic feet of a space requires multiplying the area of the bottom times the average height. You get the bottom area by multiplying the length times the width. Remember, to get cubic feet, you need all your measurements in feet to start with.

Here is your formula:

VOLUME (in cubic feet) = Length (in feet) X Width (in feet) X Height (in feet)

If it's a rectangular room you're working with, it is all straightforward. If there are irregular walls, it may be necessary to divide up the room into rectangular sections and then add together their individual volumes. If the ceiling is sloped, you need to use the height that has the same ceiling area above it as below it. Good luck! Truly.

just under 18 cubic feet.
at 4 inches thick there will be 3 square feet to equal 1 cubic foot. there's .6 cubic feet in an 80 lb sac. I'd get 30 bags and be careful not to go over 4 inches deep to often.

4' = 48"
thickness" x width" x lengh" = cubic inches
2" x 8" x 48" = 768

1 cubic foot is 144 cubic inches
768 divided by 144 = 5.3333333333------