ES-TRIN, Article 19.06(9)(a) - Stairs and their landings
Is the compliance with the Standard EN 13056 related to the finished staircase?
The compliance with the Standard EN 13056:2000 is related to the finished staircase; this means with any covering like stair carpet, floor tile, marble, ...
Is the absence of stair risers allowed?
The absence of stair risers is allowable provided that the clear space between the steps does not exceed the limit of 120 mm in accordance with EN 13056.
Is a staircase with a gradient of less than 30° or more than 45° prohibited?
Stairs with gradients of less than 30° or more than 45° do not comply with the Standard and nor therefore with the requirements of Article 19.06(9)(a).
CESNI/PT/Pax (20)m 28, CESNI/PT/Pax (21)m, item 4
Working group for passenger vessels (CESNI/PT/Pax), stairs, stair risers, gradient