Usually a cubic yard will cover 15 square yards at 3 inches deep so I would reckon on 22 cubic yards. Hold on that I've got that wrong it's 2 cubic yards .Sorry.
2.37 cubic yards of stone for every 3 inches deep it needs to be
36
For 1 foot deep, 400 cu ft. For 3 inches deep, 100 cu ft.
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.
You will need 1500 cubic feet.
how to get 1600 mulch which is money in bin weevils
64 cuft, about 2 and a third cubic yards
To give you an answer, we need to know how wide, how long and how deep. You gave us 2 of the 3 numbers we need. No answer for you.
Plan on about 2.2 cubic yards (2.8 tons) of gravel.
3000 sq ft * 4 inches = 1000 cubic feet.
An area 10 foot x 10 foot is 100 square feet. 100 cubic feet of sand would cover it with a one foot deep layer of sand. If the sand needs to be 6 inches deep, then 50 cubic feet are be needed, or 25 cubic feet if the sand is to be 3 inches thick.