1. STAIR CASE

2. Contents Introduction Technical Terminology Materials Used Types
Classification
Conclusion

3. INTRODUCTION What’s Stair? Difference between Stair & Stair case
Purpose Of Stair case
For residential building size should be 16 cm*26 cm(rise*going)
For hospital etc it should be 10 cm*30 cm(rise*going)

4. TECHNICAL TERMINOLOGY

5. TECHNICAL TERMINOLOGY
Step
Tread
Riser
Flight
Landing
Rise
Going
Nosing
Scotia
Soffit

6. Line of nosing
Pitch/Slope
String/Stringers
Newel post
Baluster
Balustrade
Hand rail
Head room
Run
Header

7. MATERIALS USED
There are different types of materials which are being used for the construction of stair case from ages . They are
Brick
Stone
R.C.C
Wood
Steel
Glass

8. BRICK STAIR CASE

9. BRICK STAIR CASE Not very common
Consists of either solid wall or also arched openings may be left for obtaining storage space as shown
Stone slabs required as maintenance

10. STONE STAIR CASE

11. STONE STAIR CASE Strength Mainly in temple area Fire resistive
Economic
Types

12. R.C.C STAIR CASE

13. R.C.C STAIR CASE Uses Advantage over other types Costly
2 types i.e. stairs with slab spanning horizontally and stairs with slab spanning longitudinally

14. TIMBER STAIR CASE

15. TIMBER STAIR CASE
Use limit
Low cost
Advantage

16. STEEL STAIR CASE

17. STEEL STAIR CASE
Uses
Advantages
Costly

18. GLASS STAIR CASE

19. GLASS STAIR CASE
Uses
Purpose
Advantage/Disadvantages
High cost

20. TYPES OF STAIR CASE Depending upon the look of 1st stair it’s of
following types
Flier
Bull nose type
Round ended step
Splayed step
Commode step
Dancing step
Winder

21. TYPES OF STAIR CASE
Bull nose , Round ended , Splayed , Commode , Dancing & Winders

22. CLASSIFICATION Stair case is of following types Straight Stair Case
Turning Stair Case
Dog-legged Stair Case
Bifurcated Stair Case
Continuous Stair Case

23. STRAIGHT STAIR CASE Single , Double , Triple Flights
Number of landings
Number of treads & rises remains same through out
Uses

24. STRAIGHT STAIR CASE

25. TURNING STAIR CASE
Mainly three types i.e. Quarter turn , Half turn and Three quarter turn
Quarter turn stair case construction & uses
Half turn stair case types and construction
Three quarter turn stair case construction and uses

26. QUARTER TURN STAIR CASE

27. HALF TURN STAIR CASE (OPEN NEWEL)

28. THREE QUARTER TURN STAIR CASE

29. DOG-LEGGED STAIR CASE Name due to appearance Solid newel category
Landings with half space or quarter space with winders
No space between outer strings

30. DOG-LEGGED STAIR CASE(HALF SPACE LANDING)

31. DOG-LEGGED STAIR CASE(QUARTER SPACE LANDING)

32. BIFURCATED STAIR CASE Commonly used in public buildings
Wider flight at the bottom which bifurcates into two narrower flights i.e. left & right
Types (Newel or Geometrical)

33. BIFURCATED STAIR CASE

34. CONTINUOUS STAIR CASE
Divided into circular , spiral & helical stair case
Made up of R.C.C or metal
Found in space limited location
Used as emergency stair case; so found at the back side of building mostly
All steps are winder type

35. SPIRAL STAIR CASE

36. HELICAL STAIR CASE

37. CIRCULAR STAIR CASE

38. CONCLUSION It should be fire resistive Should carry heavy load
Should be proper oriented for decorative purpose

39. THANK YOU