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Concrete is a mixture of sand, gravel, cement, and water. Generally, you have 1 part cement, 2 parts sand, and 3 parts gravel. Sand makes up about 1/4 or 1/3 of a cubic foot. At 100 pounds per cu ft that is about 25-35 pounds.

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How much concrete for 10'x25'x4?

To calculate the amount of concrete needed for a space measuring 10 feet by 25 feet by 4 feet, multiply the dimensions together: 10 ft x 25 ft x 4 ft = 1,000 cubic feet. Since concrete is typically measured in cubic yards, convert cubic feet to cubic yards by dividing by 27 (there are 27 cubic feet in a cubic yard). Thus, 1,000 cubic feet is approximately 37.04 cubic yards of concrete needed.


How much concrete is needed for an area 8' x 4' and 3 deep?

96 cubic feet of concrete


How much concrete is needed for a slab 120 square feet by 3.5 inches thick?

(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


How Much Concrete is Needed For a Slab 625 Square Feet by 6 Inches Thick?

625 times 0.5 = 312.5 cubic feet will be needed


How much concrete is needed for a slab 800 square feet by 4 inches thick?

how many cubic feet in a yard of concret


How much concrete is needed for a 10' X 14' x 4 slab?

To calculate the amount of concrete needed for a slab measuring 10 feet by 14 feet and 4 inches thick, first convert the thickness to feet: 4 inches is approximately 0.33 feet. The volume in cubic feet is then calculated as 10' x 14' x 0.33' = 46.2 cubic feet. To convert this to cubic yards (since concrete is often sold by the cubic yard), divide by 27: 46.2 cubic feet ÷ 27 = approximately 1.71 cubic yards. Therefore, you would need about 1.71 cubic yards of concrete for the slab.


How much concrete will it take for a 12x12x4 slab?

To calculate the amount of concrete needed for a 12x12x4 slab, first convert the dimensions to feet: 12 feet by 12 feet by 4 inches (which is 1/3 foot). The volume in cubic feet is 12 x 12 x (1/3) = 48 cubic feet. Since concrete is typically sold by the cubic yard, divide the volume by 27 (since there are 27 cubic feet in a cubic yard): 48 ÷ 27 ≈ 1.78 cubic yards of concrete is required.


How much concrete is needed per 4x4 fence post?

On average, you will need about 0.5 cubic feet of concrete per 4x4 fence post.


How much cement is needed for 30x16x4?

To calculate the amount of cement needed for a volume of 30 feet long, 16 feet wide, and 4 feet deep, first find the volume: 30 × 16 × 4 = 1,920 cubic feet. If you are using a standard concrete mix, you'll generally need about 1 cubic yard of concrete for every 27 cubic feet. Therefore, you would need approximately 71.11 cubic yards of concrete for this project. Be sure to adjust for waste and specific mix designs as needed.


How much concrete is needed for a trench 10 wide by 3 deep by 54 ' long?

volume of trench = 10' x 3' x 54' = 1620 cubic feet therefore 1620 cubic feet of concrete will be required.


How much concrete needed for 12x30 slab?

To calculate the amount of concrete needed for a 12x30 slab, you first determine the area by multiplying the length (30 feet) by the width (12 feet), which equals 360 square feet. If the slab is to be 4 inches thick, convert the thickness to feet (4 inches = 1/3 feet) and then calculate the volume: 360 square feet x 1/3 feet = 120 cubic feet. Since there are 27 cubic feet in a cubic yard, divide 120 by 27 to find that approximately 4.44 cubic yards of concrete is needed.


How much concrete is needed for 30 x12 area?

To determine the amount of concrete needed for a 30 x 12 area, you first need to calculate the area, which is 30 feet multiplied by 12 feet, resulting in 360 square feet. If you're pouring a standard thickness of 4 inches (0.33 feet), you would multiply the area by the thickness: 360 square feet x 0.33 feet = 118.8 cubic feet. To convert cubic feet to cubic yards (since concrete is typically sold by the cubic yard), divide by 27, resulting in approximately 4.4 cubic yards of concrete required.