Avoid Yamada & Sons (Con Agg) Concrete

[Rob Tucker]

I have noticed over the years that more miscalcs of concrete volumes occur when the unit of measure used to calc is basically feet. Years back I converted to using inches. It might seem that there is no difference in the two units but there is. A 2x4 is, for instance, not 4 inches tall or .33 feet tall. It is 3.5 inches. Meansurements visually calced at .5 feet might be 5, 6 or 7 inches or varibles thereof and errors accumulate.

So in using inches as a base measurement unit I would not arrive at a cubic foot number until the very end of the math. Might have a number like 375,428 cubic inches divided by 1728 = 217.26 cubic feet divided by 27 - 8.05 cubic yards. Order 8.5 yards and, like David M, have a secondary form ready for any excess.

Using the smaller unit of measure tightens up the numbers.