In case of .4 above, the uppermost entrance section from deck of the ladder should
be vertical for a distance of 2.5 m clear of the overhead obstructions and
connected to a landing platform and continued with an inclined ladder. The
flights of inclined ladders should not be more than 9 m in actual length and the
vertical height should not normally be more than 6 m. The lowermost section of
the ladders may be vertical for a vertical distance of not less than 2.5 m.