2.37 cubic yards of stone for every 3 inches deep it needs to be
The 4 inches is 4/12 of a foot or 1/3 foot. Length times width times height is the volume, so 2856 (the area in square feet) times 1/3 (the depth in feet) = 952 cubic feet.
Any reason why it shouldn't be 220, apart from the shape of the area?
Technically, none. A square foot is a measure of area whereas it is the volume of water that is required. To convert from area to volume it is necessary to know the depth. A twelfth of a cubic foot will cover an area of one square foot to a depth of 1 inch. A cubic foot will cover it to a depth of 1 foot, 100 cubic feet will cover it to a depth of 100 feet.
160 of them.
If the tiles measure 12 inches square then the area of each tile is 1 sq foot. Therefore 1400 tiles are needed to cover an area of 1400 square feet. However, the actual dimensions of the area being tiled can affect the number of tiles required so closer examination is needed.
You will need 1500 cubic feet.
Take the sq foot and divide by 140 if you want the stone apx. 2" deep.
The 4 inches is 4/12 of a foot or 1/3 foot. Length times width times height is the volume, so 2856 (the area in square feet) times 1/3 (the depth in feet) = 952 cubic feet.
Any reason why it shouldn't be 220, apart from the shape of the area?
A square foot will cover a square foot, regardless of the depth of the material the cover is made of.
640
It should take about 825 1 foot square tiles to cover a floor with those dimensions. This assumes roughly a 10% waste factor.
144
1
If it is then find out where to get it and then get it!
Technically, none. A square foot is a measure of area whereas it is the volume of water that is required. To convert from area to volume it is necessary to know the depth. A twelfth of a cubic foot will cover an area of one square foot to a depth of 1 inch. A cubic foot will cover it to a depth of 1 foot, 100 cubic feet will cover it to a depth of 100 feet.
6