External steps

Building entrance single steps

Entrance with single step

Internal ramp with sliding doors

External ramp with swing doors

Internal ramp with inward swing doors

Internal ramp with porch

Internal ramp with outward swing doors

Building entrance stairs

  • Any change in level should be avoided between the external area and internal area. Steps to enter building are not acceptable and if at all needed, an alternative accessible entrance must be provided to the building.
  • Single steps to enter building are not acceptable as cause trip hazard for all users and are difficult for wheelchair users to climb.
  • Where level change is needed for weather protection, the maximum height is 13mm.

Stairs at Buiding Entrance

External Entrance Ramp

Internal Entrance Ramp

External stairs

  • Heights (rise) and tread depths (run) of stairs to be uniform.
  • Open risers should be avoided.
  • Stair treads & landings should be finished with non-slip material.
  • Stair treads, including nosings, should be illuminated with a minimum of 100 lux,


  • If stair nosing is needed, it should not project to cause trip hazard
  • Colour or material contrast to differentiate between the horizontal and vertical surfaces.
  • Pattern surfaces should be avoided around stairs.
  • Circular stairs should be avoided.
  • Windows or doors should not open into landing areas by stairs
  • Headroom of 2100mm
  • On large stairs, intermediate landing areas with tactile warnings to be provided.


  • Dual height handrails on both sides of exterior steps
  • Handrails on continuous  inside edge of stairs with a switchback
  • Wide stairs need intermediate handrails

External stairs tactile warning surfaces

Tactile surface dimensions

  • gap from stair: 300mm
  • depth of surface: 600-900mm

Horizontal Strip Dimensions

  •  separation of strips: 50mm
  • width of strip: 20mm
  • height of strip: 6mm