What is the maximum allowable rise for each step in a stairway?

The maximum allowable rise for each step in a stairway is defined by building codes aimed at ensuring safety and accessibility. The choice of 200 mm aligns with common standards that prioritize user comfort and safety in stair design.

Steps that exceed this height can lead to difficulty in navigation, especially for individuals with mobility challenges or those who are less steady on their feet. Regulations often specify that the maximum rise for a step should not exceed this limit to prevent accidents and encourage a smoother transition between steps.

The other options indicate lower rises, which may be recommended for certain settings but do not reflect the broader standardization across various regulatory documents. In terms of practicality and inclusive design, the selected maximum rise at 200 mm strikes a balance between accessibility and efficiency in construction practices while acknowledging that some jurisdictions may adopt variations based on local considerations.