Is there a standard height for the nose of the rail cushion (the part that the ball hits) to be above the bed of the table? I'm speaking of 8' and 9' pool tables, not snooker or billiard ones.
7. Height of the Cushion
Rubber cushions should be triangular in shape with the width of the cloth-covered cushion being between 1 7/8 [4.76 cm] and 2 inches [5.40 cm] measured from the outer edge of the featherstrip to the nose of the cushion. Rail height (nose-line to table-bed) should be 63 ½% (+1 %) or between 62 ½% and 64 ½ % of the diameter of the ball.
