Reference

Stage Rake and Angle of slope

Rake

Angle of Slope
(Degrees Approx)

Angle of Slope
(Degrees Actual)
1 in 24 2 2.39
1 in 18 3 3.18
1 in 15 4 3.81
1 in 12 5 4.76
1 in 10 6 5.71
1 in 8 7 7.13