A cubic yard falls just short of what youre looking for. Do your own research I guess. That's why you hire a carpenter or a mason to do work and estimates for you. Because you don't know what youre doing when it comes to keeping the work simple. Numerically.
about 17 yards of concrete (it's sold by the cubic yard)
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
9x12 feet at 4 inches deep: 1.3 cubic yards.
12 x 12 feet, 4 inches deep: 1.8 cubic yards, minimum.
To calculate the amount of concrete needed for a base measuring 13 feet by 13 feet and 4 inches deep, first convert the depth to feet: 4 inches is 1/3 of a foot. Then, calculate the volume in cubic feet: ( 13 , \text{ft} \times 13 , \text{ft} \times \frac{1}{3} , \text{ft} = 56.33 , \text{cubic feet} ). Therefore, you need approximately 56.33 cubic feet of concrete.
54sqare feet
128
12.30 cubic yards
about 17 yards of concrete (it's sold by the cubic yard)
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
800 C feet
18.6240 yd³
you would need 37.33 yards of concrete or 38 to be safe
9x12 feet at 4 inches deep: 1.3 cubic yards.
To calculate the volume of concrete needed, use the formula for volume: length × width × depth. In this case, convert the dimensions to feet: 80 feet long, 40 feet wide, and 0.5 feet deep (6 inches). Therefore, the volume is 80 × 40 × 0.5 = 1,600 cubic feet. You would need 1,600 cubic feet of concrete for the project.
3536 sqft 6 inches deep = 3536*0.5 cubic feet = 1768 cu ft = 65.48 cubic yards (approx).
If it is the same as concrete it will cover 162 square feet. concrete covers 81 square feet by 4" deep