What is Riser in Staircase?

• This riser is the vertical portion between each tread on the stair.rn• Not all stairs have risers. The rise-less steps are called the open thread.rn• Open riser stairs have grown in popularity Recently years. Closed tread stair has risers included.rn• This vertical board forms the face of the step, also forms the space between one step and the next.rn• Rise provided could be uniform. It is normally hight 150 mm to 175 mm in residential buildings while it is kept between hight 120 mm to 150 mm in public buildings.rn• However, in commercial buildings, more rise is provided from the consideration of the economic floor area.

What is Step in Staircase?

• A flat surface, especially one in a series, on which to place one’s foot when moving from one level to another. all step is composed of tread and riser.

What is Nosing in Staircase?

• Nosing is the flat protruding edge of a stair at which most foot traffic occurs.rn• Mostly, it’s the half curved molding fixed into the ends of those threads exposed at a half that covers where the balusters fit into the treads.rn• Nosing is the border of the tread projecting beyond the face of the riser and the face of a cut string. This is the place where the thread above a riser overhangs it. Sometimes, the tread may not have a nosing.

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