To calculate the amount of concrete needed for a 24x40 foot slab that is 6 inches thick, first convert the thickness to feet (6 inches = 0.5 feet). Then, multiply the length, width, and thickness: 24 ft x 40 ft x 0.5 ft = 480 cubic feet. Since concrete is typically measured in cubic yards, divide by 27 (the number of cubic feet in a cubic yard): 480 cubic feet ÷ 27 = approximately 17.78 cubic yards. Therefore, you will need about 18 cubic yards of concrete.
It depends how thick you want it
You will need at least 14 cubic yards.
You will need 17.8 cubic yards of concrete.
12 ft x 10 ft x .333 ft (4 in) = 39.96 cu ft. You need enough concrete for 40 cubic ft.
An 80lb bag of concrete you can at your local home improvement store covers about 4 square foot at 2" thick. So you would need about 144 bags of 80lb concrete.
It depends how thick you want it
You will need at least 14 cubic yards.
For a 4-inch thick slab you will need at least 1.2 cubic yards.
That depends on how deep (thick) you need it to be. You'll need 1 yard of concrete for every 3/4 inch of thickness of the pad.
You will need 17.8 cubic yards of concrete.
12 ft x 10 ft x .333 ft (4 in) = 39.96 cu ft. You need enough concrete for 40 cubic ft.
12 ft x 10 ft x .333 ft (4 in) = 39.96 cu ft. You need enough concrete for 40 cubic ft.
An 80lb bag of concrete you can at your local home improvement store covers about 4 square foot at 2" thick. So you would need about 144 bags of 80lb concrete.
10 yards
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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.
Volume of concrete needed = 4 x 12 x 1/3 = 4 x 4 = 16 cubic feet