Diameter of hole: 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 30 36 42 48 54 60 66 72 inches
Depth of hole: 24 30 36 42 48 54 60 66 72 78 84 90 96 inches
Quantity of Holes: