And then finally, we want to solve for a cubic dimension of the foundation wall.

So we know that it is going to be placed on the footings around the perimeter of

the building, and we know that it is has a 200 x 400 dimension.

Therefore, the perimeter would be 1,200 feet for the foundation wall.

So we would multiply 2 feet in height, times 0.67,

which is inches converted into feet, for 8 inches thick.

And the perimeter length, which is 1,200, for

a grand total of 1,608 cubic feet of concrete.

So, it is very important to remember to convert

from cubic footage into cubic yardage.

Therefore, we will take the total quantity of bulk concrete for the footings,

which is 100 feet cubed, multiplied by the bulk concrete for, sorry,

added to the bulk concrete for the foundation wall, which is 1,608.

We take that factor and divide it by 27, for

a grand total of 63.26 cubic yards.