Page 48 - Dubai Universal Design Code
P. 48
5.8. Stairs
Stairs should include as many accessible elements as possible.
5.8.1. Steps
Steps shall the following characteristics:
1. Rises shall have a maximum height between 150 mm and 176 mm.
2. In straight flights, the dimension of the stair tread must be between 300 mm and 340
mm.
3. The rise R and tread T must meet the following relation: 650 mm < 2R + T < 700
mm.
4. Curved stairs should be avoided.
5. No open risers or discontinued treads are allowed.
Figure 19. Open risers are not permitted
6. The run of a step is the dimension measured from the edge of the nosing of a tread
to the vertical projection of the nosing of the next step.
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