Stair Treads
Stair treads are designed for a simply supported condition when having a single concentrated imposed load of 1.5 KN spread over as an area of 150mm x 150mm placed at the center of the edge of a tread.

Stair treads are designed for a simply supported condition when having a single concentrated imposed load of 1.5 KN spread over as an area of 150mm x 150mm placed at the center of the edge of a tread.
