Stairs
Incident Free
Means everyone returning home safely,
every day
Contents
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Construction
Stair Nosing & Leading Edge
Stair Guard
Riser & Tread Dimensions
Stair Inclination
Overhead Clearance
AGB-CVX-GN-SPC-FS-1160: HFE Requirements for
Ramps, Stairs, Vertical Ladders, Work Platforms,
Walkways & Railings
SID Section 3 – Stairways, Ramps, Stiles, Walkways &
Platforms
Consistent Riser, Tread & Stair Angle
240 – 275 mm
(9.5 – 10.8”)
RUN
178 – 200 mm
(7 – 8”)
25 mm (1”) Nosing
38.7 degrees
Square, Level & Overlap
Square, Level & Overlap
Tread Marking & Slip Resistance
• Tread Color Marking
– Leading edge visually
distinctive from tread color
– Leading edge bright red if
treads & deck grating is
yellow
– Leading edge bright yellow
if treads & deck grating is
galvanized steel or painted
gray
• Slip Resistance
– Leading edge covered with
slip-resistant material
Leading Edge / Nosing
Leading Edge / Nosing
Leading Edge / Nosing
Leading Edge / Nosing
Leading Edge / Nosing
Tread & Platform Marking
Tripping Hazard
Tripping Hazard
Headroom
2150 mm (7’-0”) Minimum Overhead Clearance
Stair Guard
Stair Guard
Stair Guard
Single-Step Riser
Questions?