Stair Nosing- Stair Nosing is a protruding part of a stair at the edge, which is installed as a safety feature in order to avoid slipping on the staircase. These stair nosing or risers can be inbuilt or it can be installed at a later time as well. Nosing comes in different materials, shapes and also different colours. Stair nosing could be of wood, aluminium or even steel and this could be covered in fabric as well. The author explains what exactly stair nosing and what are the different varieties available.