A stair, or a staircase is one step in a flight of stairs.In buildings, stairs is a term applied to a complete flight of steps between two floors.

1.
TYPE
OF
STAIRCASES

2. STAIRS AND ITS TYPES
Single flight straight stairs
Double flight straight stairs
Quarter turn newel
Half turn newel
Open wall stairs
Dog legged stairs
Bifurcated stairs
Circular stairs
Spiral stair

3. Single flight straight stairs
Straight stairs can have a change in direction at
an intermediate landing. In case of angle stairs,
the successive flights are at an angle to each other.
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4. Double flight straight stairs
Here The stairs posses two landings while running
straight in the complete flight.
Here in the image below the stairs has two
landings during its complete landing.
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5. Quarter turn newel
They are provided when the direction of
flight is to be changed by 900.
The change in direction can be
effected by either introducing
a quarter space landing or by providing
winders at the junctions.
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6. Half turn newel
In half turn newel stairs the stairs runs
straight and after reaching the landing it turns
to left or right and then climbs up to next two to
three steps and reaches a
landing and these
steps again turns in the direction
from where the user
was approaching reaching finally
to the consecutive horizontal level.
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7. Open wall stairs
These are like normal doglegged
stairs but the only difference is that
after reaching the landing the stairs
ends up with a railing instead of the wall.
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8. DOG LEGGED STAIRS
Dog legged stairs are the stairs in which the user
climbs up to a flight turns at one eighty degree n
then climb stairs in opposite direction
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9. BIFURCATED STAIRS
These stairs are so arranged that there is a wide flight at the start
which is subdivided into narrow flights at the mid­landing
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10. CIRCULAR STAIRS
The stairs made in in a circular form are known
as the circular staircase.
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11.
SPIRAL STAIRS
Those stairs which are in spiral form
is known as spiral staircase,
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12. HARITHA HOMES
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