81
A cubic yard is 46,656 cubic inches. Spread to a thicknes of 5 inches, a cubic yard of concrete covers 9332.1 square inches, which is 64.8 square feet.
It depends upon how thick you want the concrete. For example, if you want the concrete to be 6 inches thick, then you will need 200 cubic feet. There are 27 cubic feet per cubic yard; so divide the 200 cubic feet by 27 to get 7.4 cubic yards.
1 "yard" of concrete actually = 1 cubic yard = 27 cubic feet27 = (2/3) x81 = 2 xx = 40.5 square feet
6 inches is 1/6 of a yard, so a cubic yard of concrete will cover 6 sq yards = 54 sq ft
1 cubic yard = 27 cubic feet700 square feet x 1/2 foot = 350 cubic feet = 1226/27 cubic yards(12.963 cubic yards, rounded)
A cubic yard is 46,656 cubic inches. Spread to a thicknes of 5 inches, a cubic yard of concrete covers 9332.1 square inches, which is 64.8 square feet.
39.1116 cubic yards
A 9x9 foot slab 4 inches thick requires a minimum of 1 cubic yard. If you go to 6 inches thick you will need 1.5 cubic yards.
It depends upon how thick you want the concrete. For example, if you want the concrete to be 6 inches thick, then you will need 200 cubic feet. There are 27 cubic feet per cubic yard; so divide the 200 cubic feet by 27 to get 7.4 cubic yards.
how many cubic feet in a yard of concret
1000 square feet/9 = 111.1 square yards of concrete 6 inches thick. This is the same as 111.1/4.5 = 24.7 cubic yards of concrete.
1 "yard" of concrete actually = 1 cubic yard = 27 cubic feet27 = (2/3) x81 = 2 xx = 40.5 square feet
There are 3 feet in 1 yard There are 12inches in 1 foot There are therefore 36 inches in a yard, 1296 square inches in 1 square yard and 46656 cubic inches in 1 cubic yard. A 150 sq ft slab therefore is equivalent to a 21560 square inch slab, if this slab is 4 inches deep then it comprises 86400 cubic inches of concrete. Thus the number of cubic Yards of concrete you require is 86400/46656 = 1.85 i.e. (almost 2).
To determine how many cubic feet of concrete are needed, you first need to know the depth of the concrete slab. For example, if the slab is 6 inches thick, you would multiply 360 square feet by the thickness in feet (6 inches = 0.5 feet) to get 180 cubic feet of concrete required.
(3.5/12) x 120 = (.2917) x 120 = 35.004 Cubic Feet Concrete is sold by the cubic yard. 35.004 cubic feet = 1.3 cubic yards
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
For a 1000 sqft slab with a thickness of 4 inches, you would need approximately 33 cubic meters of concrete. This calculation is based on the assumption that 1 cubic yard of concrete covers 81 square feet at 4 inches thick.