Doors, stairways, aisles and sitting arrangement
18.—(1)  All entrances to passenger compartments on a ship shall be equal in width to the ladders or stairways leading to the passenger compartments.
(2)  All entrances to the ship are to be fitted with steady handrails, or its equivalent.
(3)  Over each of the hatchways leading to passenger compartments there shall be a booby hatch or other substantial covering of such character as shall provide as much light and air and protection from the weather as possible.
(4)  A ladder of stairway shall not be less than 0.75 metre in width. There shall be at least 1.80 metres clear space in a vertical direction above each step.
(5)  Where the vertical height of the ladder or stairway exceeds 0.50 metre, steady handrails shall be fitted on each side.
(6)  Ladders or stairways shall, as far as possible, be pitched fore and aft and shall not be too steep, the angle from the vertical being as near 37 degrees as the arrangements of the ship will permit. All ladders are to be lined on the back. The depth of every step shall not be less than 0.20 metre.
(7)  Aisles shall not be less than 0.75 metre in width.
(8)  Every seat shall have a depth of not less than 0.38 metre, a breadth of 0.45 metre and legroom of 0.40 metre. A backrest shall be provided for every seat.