Technical Booklet H Stairs Ramps Guarding and Protection from Impact·Page 32·3.35
Step Design and Open Risers
Steps must have closed risers (not open) and suitable profiles to reduce tripping hazards and prevent feet from catching beneath the nosing.
Steps should have rises that are not open and have a suitable profile such that the risk of tripping or people catching their feet beneath the nosing, is reduced (see Diagram 3.9).
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