64 cuft, about 2 and a third cubic yards
25 Yards
221.67 (2dp)
36
"4 inches" is a length. "7676 square feet" is an area. "4 inches by 7676 square feet" describes a volume, which is equal to 2,558.67 cubic feet. (= 7676/3, because 4 in = 1/3 ft.) So your question is better put as "How many tons of crushed stone does it take to cover an area of 7676 square feet to a depth of 4 inches?" The answer depends on the density of the crushed stone. I can't answer that, but I've given your question a clearer phrasing.
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)
25 Yards
221.67 (2dp)
36
"4 inches" is a length. "7676 square feet" is an area. "4 inches by 7676 square feet" describes a volume, which is equal to 2,558.67 cubic feet. (= 7676/3, because 4 in = 1/3 ft.) So your question is better put as "How many tons of crushed stone does it take to cover an area of 7676 square feet to a depth of 4 inches?" The answer depends on the density of the crushed stone. I can't answer that, but I've given your question a clearer phrasing.
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)
Crushed stone.....
It depends on how big the stone is.
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.
Not sure what 2b is but crushed concrete with 1 1/2" rock will cover about 60 square feet. 15 tons ends up being around 12 cubic yards.
Construction
1 yard of 1" crushed stone
The sub-grade's compacted soil, topped by the sub-base of crushed stone and then the pea gravel.