How do you figure out cubic yards for concrete for pier holes?

Answer:
Depth / 27 x # of holes
Ie if you have 25-12"*12' piers
12/27x25= 11.11 + .25 yard
I would order 11.5 yards
First answer by ID3101438374. Last edit by ID3101438374. Question popularity: 1 [recommend question].