1. Building Drawing Symbols
Try to identify the following symbols…

2. Lamp

3. Socket

4. Switch

5. Shower Tray

6. Wash Basin

7. Radiator

8. Bath

9. Sink

10. WC

11. Sinktop

12. Heated Towel Rail

13. Concrete

14. Brickwork

15. Door

16. Wood Sawn

17. Insulation Board

18. Block Work

19. Fixed Window

20. Window – Hinged at Side

21. Window – Hinged at Bottom

22. Window – Hinged at Top

23. Window – Pivoted Horizontal Axis

24. Window – Sliding Horizontally

25. Drainage

26. North Point

27. Existing Tree

28. Existing Tree – To be Removed

29. Proposed Tree

30. Outline Solid

31. Projection Line

32. Hidden Detail Line

33. Centre Line

34. Folding Line

35. Cutting Plane

36. Knurling

37. Springs

38. ?
Leader Line

39. Across Corners

40. Across Flats

41. Square

42. Linear

43. Radial

44. Projection Symbol

45. Diameter

46. Running

47. Chain

48. Parallel

49. Major and Minor Axis

50. Pitch Circle Diameter

51. Angular Dimension

52. Internal Screw Threads

53. External Screw Threads

54. Common Tolerance

55. Asymmetrical Tolerance

56. Symmetrical Tolerance

57. Functional Tolerance

58. Non-Functional Tolerance