In accordance with AS1428.1-2009 Clause 11.1 (b), stairs that intersect at an internal corridor shall be set back in accordance with Figure 26(B), as shown below.
From what is shown in Figure 26(B), it is interpreted that the partition wall must allow for a compliant handrail extension at the bottom of a stair, without the handrail protruding past the wall.
As shown in the plan & section view below, Moddex recommends the minimum set back must allow for at least one tread length + 435 mm for our standard 180° closure bend.
To save time, resource and ease of installation when specifying Moddex handrails or balustrades please consult the Hot Design Tip or contact us on 1800 663 339 (Australia) or 0800 663 339 (New Zealand).