Introduction to Civil Engineering Drawing (PDF)

This PDF presentation titled “Introduction to Civil Engineering Drawing” provides a clear overview of the basic principles and methods used in civil engineering drafting. It explains how design ideas are transformed into technical drawings for construction and infrastructure projects. The content includes drawing instruments, scales, lettering, dimensioning, and standard civil symbols.

You’ll also learn about different drawing types such as plan, elevation, section, and site layout, along with the basics of structural and foundation drawings. The presentation introduces modern CAD tools that enhance accuracy and efficiency in professional drafting.

Designed for students, beginners, and professionals, this PDF helps readers develop practical drawing skills and understand the role of civil drawings in communication and construction. It’s an essential resource for anyone studying or working in civil engineering and design.

1. CE 1152
Engineering Drawing
Lecture-1
SabihaTasnimRifa
Department of Civil Engineering, BAUST

2. Introduction to Civil Engineering Drawing
Engineering Drawing is the language of engineers. It is meant for communicating his/her ideas, thoughts
and designs to others.
“A drawing drawn by an engineer, having Engineering knowledge, for the Engineering purposes is an
Engineering Drawing.”
Drawing is the art of graphic representation of an object or a part of it and is a result of creative thoughts
by an engineer or technician.
The engineering drawing, on other hand, is not subtle or abstract. It does not require the understanding of
its creator, only an understanding of engineering drawing.
An engineering drawing is a means of clearly and concisely communicating all of the information
necessary to transform an idea or concept into reality.
Therefore, an engineering drawing contains more than just a graphic representation of its subject. It also
contains dimensions, notes and specifications.
It is a starting point of all Engineering branches Mechanical, Production, Civil, Electrical, Electronics,
Communication, Computer Science, Chemical, Textile, Transportation, Metallurgic, Instrumentation,
Automobile, Architectural, Agricultural, Aeronautical, Marine, Mining Engineering etc.

3. Instruments/Accessories Needed:
1.Lead Pencil – HB, 2B
2.Eraser & Sharpener – Good Quality
3.Drawing paper – A2 & A3 (Drawing Paper Half)
4.Tee-square
5.Set-square
6.French Curve
7.Clips and tapes
8.Drawing board
9.Scale ruler
10.Paper holder

4. Lead Pencil – HB, 2B
HB pencils are used to draw thin lines (mainly dimension lines and others), while 2B pencils
are used for drawing thick line where necessary.

5. Drawing Paper
- Drawing papers are available in various sizes mentioned in the table below.
- We need to have A2 size paper for our drawing. A3 and A4 are also used when necessary.

6. T-Square
- It is a T-shaped instrument used for drawing horizontal & vertical lines.
- Also used for guiding a set-square to draw a vertical or diagonal line.
- A T-square has two components—the long shaft called the "blade" and the short shaft called the
"stock" or "head".
- The T-square usually has a transparent edge made of plastic which should be free of nicks and
cracks in order to provide smooth, straight lines.
- A T-square can be used to draw horizontal and vertical lines without a ruler.
- T-squares come in varying sizes, common lengths being 18 inches (460 mm), 24 inches (610
mm), 30 inches (760 mm), 36 inches (910 mm) and 42 inches (1,100 mm).

7. Set Square
(30° –60°) drawing triangle and 45 drawing
triangle
Pencil Compass and Divider

8. French Curve Masking Tape Drawing Board

9. Paper holder Cardboard Scale

10. Preparation of Drawing Paper

11. Uses of T Scale in Drawing

12. Parallel Line Drawing
Horizontal Parallel
Line
Inclined Parallel
Line
Vertical Parallel
Line

13. Dividing a line into N numbers of equal parts
•We want to divide a line AB into 5 equal parts.
•Take a line at any suitable direction from B.
•Cut 5 equal parts from that line starting from B.
•Connect the top cut and A.
•Draw a line parallel to the previous one from the next cut point.
•Use set-squares to draw parallel lines as shown in next figure.

15. Thank You