1 cubic yard = 27 cubic feet
6 inches = 1/2 foot
Volume of the ditch = (12 x 78 x 1/2) = 468 cubic feet = 17 1/3 cubic yards
Roughly 12 square yards.
Well, you would take the 7000 square feet of dirt and multiply it by the four inches of stone to get the 28000 cubic yards of stone. (28000 yds³)
You are mixing volume (square yard) and area (length x width). How deep do you want the dirt? One foot deep you need about 80 square yards of dirt.
6 cubic yards of dirt will cover 70 sq ft ... 2 ft 3 3/4 inches deep
806.66 Cubic Yards
Sorry the first answer was in square yds. Cubic yards would be 0.308639
Roughly 12 square yards.
Well, you would take the 7000 square feet of dirt and multiply it by the four inches of stone to get the 28000 cubic yards of stone. (28000 yds³)
You are mixing volume (square yard) and area (length x width). How deep do you want the dirt? One foot deep you need about 80 square yards of dirt.
You find the square footage of the total area....40 X 60=2400 square feet. Then convert that to cubic yards by dividing by 27....(27 cubic feet per cubic yard) 2400 divided by 27= 85.1 cu. yards To raise the area by one foot, this would be the end of the calculation. If you were to only want to raise an area by 4 inches lets say....then you would multiply 85.1 by .33 or one third of a foot. (for 6 inches you would multiply by .50 or 1/2 foot) NOW, you have to take into account compaction or loss. When figuring concrete, allow up to 10%. When figuring dirt (depending on how sandy etc.) rule of thumb is to allow UP TO 1/3 for compaction. In your question above, allow for 1/3 and you would need another 28 yards (cu. yards). This would figure as 85.1 X.33 and would equal roughly another 28 yards. So, the total needed would be 85 cu. yds (85 rounded) PLUS 28 .....or a total of 113 cu. yards.
None. Just build the baseball field where the dirt is already there.
It will take 800 cubic yards 1/3 compaction.
22.2222 cubic yards (the 2s keep on going).
About 3 yards with a little left over. 2.78 yards.
About two yards. One yard of dirt is 36 inches on a side, or 46,656 cubic inches. 15x20 foot by 2 inches is 86,400 cubic inches.
6 cubic yards of dirt will cover 70 sq ft ... 2 ft 3 3/4 inches deep
133.33 cubic yards, that's 400 feet