A stair case is a means of giving access to different floors or levels of a building. Stair cases are used in almost all buildings. It consists of a number of steps arranged in a way that a person can move from one level to another. The arrangement of steps is as per the convenience, standards and space available. Commonly used stair cases are as follows:
- Straight stairs
- Quarter turn stairs
- Open well type (Half turn stair)
- Dog legged stairs
- Circular or spiral stairs