Stairs are used to move from floor to floor. Stairs allow access and communication between floors in multi-story buildings. The room or space between which a stair is located is known as the staircase.
It should therefore be covered with fire-resistant walls, floors, roofs and doors. It should be designed to carry certain loads used for the design of floors. Various materials such as wood, brick, stone, steel or reinforced cement concrete can be used for stair construction.