Slab "Flatwork" (Cubic Yards ): Driveway, floor, sidewalk, patio, etc.
Length' x Width' x Depth'
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Example: A sidewalk that is 4 feet wide, 30 feet long, and 4 inches thick:
4 x 30 x .34 (from chart)
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In this case, the equation tells you that 1.52 cubic yards will be required. As a rule of thumb, always
round up to the nearest quarter yard to compensate for differentials in depth, measurements, and/or "waste/spillage."
Footing: Same as above, just use the measurements required.
Wall: Same as above...just imagine the wall as a "vertical slab!" (Your "depth" will
now be the "thickness" of the wall.)
Hole / Circular Area:
Reminder....you must use the magic "pi"....3.14 in this case,
and you must convert the diameter to a radius by dividing
the diameter by 2, then "square" that radius figure.
Example: A hole "pier" that is 1 ft in diameter and 3 ft deep.
.5 x .5(radius squared) x 3.14 ("pi") x 3 (depth)
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In this example, the hole would require .09 cubic yards....therefore, if you had 10 holes this size you
would need 10 x .09 = .90 cubic yards
Rounding up, it would be wise to order 1.25 cubic yards in this case.
