STAIRS

A stair is a number of steps leading from one level to another. It's function is to provide means of movement.

Step	A step is a short horizontal surface for the foot to facilitate ascent from one level to another.
Flight	A series of steps between floors of landings.
Landing	A Platform between two flights.
Stringer	An inclined member which if fixed to a wall may act as housing for the steps is called a stringer..
Balustrade	A balustrade provides protection on the open sides of a stair.
Rise	This is the vertical distance between the upper surface of two consecutive treads.
Going	This is the horizontal distance between nosing of two consecutive.

Types of Stair

Stairs could be classified according to its plan form as follows.

Straight Flight

Dog Leg Stair

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