11.7.4. Staircases

Try these first

1. 1.

   What is the maximum riser height for accessible staircases?

   Hint

   Think about the limitations for climbing stairs comfortably.

2. 2.

   What should be the minimum tread depth on a staircase?

   Hint

   Consider what would be safe to step on.

3. 3.

   What is the maximum height of a riser in an accessible staircase?

   • 200mm
   • 150mm
   • 250mm

   Hint

   Think about the most comfortable height for stepping.

4. 4.

   True or False: Tread depths must be at least 400 mm for accessibility.

   • True
   • False

   Hint

   Consider standard measurements for stair design.

5. 5.

   Design a staircase that accommodates a visually impaired person. Consider dimensions, materials, and supporting features.

   Hint

   How can each element aid in safety and usability?

6. 6.

   Evaluate an existing building’s staircase design. Identify three modifications that would enhance accessibility.

   Hint

   Observe the current design's strengths and weaknesses.