Length x width x depth(thickness) divided by 27. (measurements in feet.) Most concrete is poured 4 inches thick which is .33 feet, so you can use .33 for the depth(thickness). Here's how it works: You are going to pour a 40 foot driveway that is 10 foot wide and it's going to be a standard 4 inches thick. 40 x 10 x .33 divided by 27 (27 cubic feet in a yard of concrete.) The answer is 4.95 cubic yards. I would order 5 yards and it's going to be close. Always order just a little extra. Also, In my area, a full truck load is 9 cubic yards. They used to haul 10, but DOT has reduced weight to 9 yards per truck.
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A cubic yard measures 3 feet by 3 feet by 3 feet so there are 3x3x3 or 27 cubic feet in a cubic yard.
The product of the length, height, and width. The term yard when selling sand and concrete means a cubic yard.
Volume in cubic feet of an object is found by finding the area (length x width for a rectangle; pi x radius squared for a cylinder) of an object in square feet and multiplying that area by the height in feet.
Example:
Volume of a box having length 4 ft, width 3 ft, and height 2 ft: (4 ft x 3 ft) x 2 ft = 12 ft2 x 2 ft = 24 ft3
Volume of a cylinder having a radius of 3 ft and a height 2 ft (3.14 x 3 ft x 3 ft) x 2 ft = 28.26 ft2 x 2 ft = 56.5 ft3 (approx)
1 "yard" is equal to a 3 foot x 3 foot x 3 foot amount. This equates to 27 cubic feet in a yard.
Do divide your number of feet by three because there are three feet in a yard u multiply the height and the width
A cube that is 3ft long x 3ft wide x 3ft deep is the equivalent of 1 cubic yard. To convert cubic yards to cubic feet, divide cubic yards by 27.
1 cubic yard is 27 cubic feet. Divide cubic feet by 27 to calculate cubic yards.