Application Diameter Height Number Concrete 6 11 1 Asphalt 8 11 1 Brick 10 11 1 Application Diameter length Width Height Number 25 15 3.0 8 3 30 20 3.0 8 3 40 20 3.0 8 4 50 20 3.5 8 5 63 20 3.5 8 6 76 20 3.5 8 7 90 20 4.0 8 9 100 20 4.0 8 10 110 20 4.2 8 11 120 20 4.2 8 12 140 20 4.2 8 14 160 20 4.5 8 16 180 20 4.5 8 18 200 20 4.5 8 20