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Volume of concrete needed = 4 x 12 x 1/3 = 4 x 4 = 16 cubic feet
A cubic yard of concrete covers an area of 81 square feet when poured at a thickness of 4 inches. This is calculated by dividing the total volume of the cubic yard (27 cubic feet) by the thickness in feet (1/3 foot for 4 inches), resulting in 27 ÷ (1/3) = 81 square feet.
540 square feet
You will need 200 cubic feet.
12.30 cubic yards
2.15
14.81 yds
how many cubic feet in a yard of concret
12.5 cubic feet. Assuming you meant 4 INCHES thick..
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
you can do the math: LXWXD DIVIDED BY 27
625 times 0.5 = 312.5 cubic feet will be needed
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.
387 cubic feet. This is because 43x18x0.5 (as six inches is 1/2 of a foot) =387.
A 10-foot round slab at 4 inches requires 1 cubic yard.
Volume of concrete needed = 4 x 12 x 1/3 = 4 x 4 = 16 cubic feet
To calculate the volume of concrete needed for a slab, you can use the formula: Volume = Area × Thickness. First, convert the thickness from inches to feet: 4 inches is 1/3 feet. Then, multiply the area (256 square feet) by the thickness (1/3 feet): 256 × (1/3) = approximately 85.33 cubic feet of concrete is needed for the slab.