National Building Regulations
Part M. Stairways
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M1. General Requirement
Any stairway, including any wall, screen, railing or balustrade to such stairway, shall:
- be capable of safely sustaining any actions which can reasonably be expected to occur and in such a manner that any local damage ( including cracking ) or deformation do not compromise its functioning;
- permit safe movement of persons from floor to floor;and
- have dimensions appropriate to its use.