Stair Handrails

Stair Construction

• Rise – 115 to 190mm and maximum 18 (consistent throughout)
• Going – 250 to 355mm (consistent throughout)
• Opaque risers to be provided
• Stair nosing to have sharp intersection and not project beyond the face of the riser
• Nosing Strip – 50 to 75mm and colour contrasting (minimum 30% with stair thread)
• Setback – 900mm from line of boundary or 400mm from line of partition wall
• Landing – 750mm minimum or width of door leaf

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Balustrades/Handrails

• Be continuous throughout the flight stair
• Balustrade openings to not permit a 125mm sphere to pass through
• Handrail Size – 30 to 50mm diameter
• Clear width - Minimum of 1000 mm clearance between handrails
• Height - 865 mm to 1000 mm
• Length - Minimum 300 mm extension (plus additional tread width at bottom of riser)
• Handrails setback from wall – Minimum 50mm.
• Terminations – 180° turn, turn 180° and return to post, return to floor/post, down 90° to floor and 90° into side wall

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