8 popular stair-types used in buildings
Photographs: iStock
Staircases these days aren't merely functional; they are things of beauty and help raise the aesthetic quotient of an interior scheme. Architect Aman Gandhi gives us a quick overview on the types of staircases used in architecture.
1Straight stairs:
This type of stairs has no change in direction on any flight. They are used where the stair hall is long and narrow, and can be considered as a kind of space-saving staircase.
2Dog-legged stairs:
This type consists of two straight flights of steps with a 180-degree turn at a half-landing. It is useful where the width of the staircase hall is just sufficient enough to accommodate two widths of stairs. It is very popularly used in residential projects.
3Quarter-turn stairs:
A stair turning through one right angle is known as quarter turn stair. The change in direction can be effected by introducing a landing.
4Open-newel stairs:
This type of stair has a well or opening between the flights. The opening may be rectangular or of any geometrical shape and it can be used for accommodating an elevator. This is most the commonly used stair as it is comfortable to use.
5Three-quarter-turn stairs:
A stair turning through three right angles (270 degrees) is known as a three-quarter turn stair. In this case, too, an open well is formed which may be used to house an elevator.
6Bifurcated stairs:
Here, the stairs start as a wide flight, which then gets divided into two narrow flights at either end of the mid-landing. These stairs are suitable for modern buildings.
7Geometrical stairs:
This type has no newel post and can be of any geometrical shape. The change in the direction is achieved through winders. These staircases require skilled construction. They are largely used in double-height spaces and are aesthetically preferred above other kinds.
8Circular/spiral stairs:
When viewed from top, this type appears to follow a circle with a single center of curvature. The spiral stairs are provided where space available is limited and traffic is low. These stairs can be constructed in RCC, steel and stone.
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