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K-SMSReading Working Drawings

Symbols, Scale and Dimensions

The grammar of a working drawing: lines, hatches, scale and numbers.

Start chapter 1 freeEnrol in this course
280170900150+0.000FFL BAWAH+1.020ANAK TANGGA 6RAILING PIPA BAJA Ø48.6 T.2.8FINISH CAT DUCO, LAS DIGERINDATIANG PLAT 50×12 @2 ANAK TANGGABASE PLATE + DYNABOLT M10GRANIT T.10 + SPESI T.20(ANTREDE & OPTREDE)NOSING ALUMINIUM ANTI-SLIP40×7, LEM EPOXYPELAT TANGGA BETON T.150TULANGAN LIHAT GAMBAR STR.PLESTER + ACI + CATSOFFIT TANGGAILUSTRASI CONTOHBUKAN UNTUK KONSTRUKSI1K-SMSSYMBOLS, SCALE AND DIMENSIONSSKALA 1:20
Level
Beginner
Lessons
18
Time
1h 56m
Rating
4.8
Learners
14.8K
Updated
Sep 2026

After this course

What you'll be able to do yourself.

A small slip in a line, a scale or a unit can put a wall in the wrong place. This course drills the grammar of a working drawing until you can read a sheet without guessing. You also practise drawing clean lines and dimensions.

  1. 1Tell cut lines, visible lines, hidden lines and grid lines apart.
  2. 2Recognise common material hatches and know when to open the legend.
  3. 3Convert paper sizes to real sizes at any scale.
  4. 4Explain why an A3 print of an A1 sheet changes the scale.
  5. 5Check dimension chains, clear sizes, levels and stairs with quick sums.

Good for

  • Early-semester students learning technical drawing.
  • Junior drafters who want their lines and dimensions to stop getting marked up.
  • Tradespeople, foremen and site engineers who want to read drawings with confidence.

Full syllabus

Chapter by chapter, nothing hidden.

18 lessons, 1h 56m in total. Chapter 1 is open to everyone.

Chapter 1Lines and hatchesFreeLine weights, line types and the patterns that tell you the material.6 lessons / 38 min
  1. Line weight is punctuation5 min
  2. Hatches: material without words5 min
  3. Names of lines and symbols4 min
  4. Draw lines8 min
  5. The dashed line in the living room6 min
  6. Chapter 1 test10 min
Chapter 2ScaleHow scale works, and why prints can lie.6 lessons / 39 min
  1. 1:50 is a divider5 min
  2. An A3 print of an A1 sheet5 min
  3. From paper to site7 min
  4. The foreman measures with a ruler6 min
  5. Read a 1:20 stair section6 min
  6. Chapter 2 test10 min
Chapter 3Dimensions and levelsDimension chains, grid and clear sizes, the datum, and stairs that must divide evenly.6 lessons / 39 min
  1. Numbers that must agree5 min
  2. Dimension and level terms4 min
  3. Check chains and stairs7 min
  4. Draw dimensions8 min
  5. Change riser and tread5 min
  6. Chapter 3 test10 min

Lesson kinds

  • Concept
  • Glossary
  • Draw the detail
  • Site case
  • Chapter test
  • Calculate
  • Read a model
  • Slide the Parameter

Get a feel for it

You practise, you don't just watch.

Try it: Slide the ParameterIllustration, not for construction
280170900150+0.000FFL BAWAH+1.020ANAK TANGGA 6RAILING PIPA BAJA Ø48.6 T.2.8FINISH CAT DUCO, LAS DIGERINDATIANG PLAT 50×12 @2 ANAK TANGGABASE PLATE + DYNABOLT M10GRANIT T.10 + SPESI T.20(ANTREDE & OPTREDE)NOSING ALUMINIUM ANTI-SLIP40×7, LEM EPOXYPELAT TANGGA BETON T.150TULANGAN LIHAT GAMBAR STR.PLESTER + ACI + CATSOFFIT TANGGA

Slide the value. The drawing follows, just like in the lessons.

2R + T = 620 mm. Within a comfortable stride of 600 to 650 mm.

Illustration, not for construction

Your creator

Taught by someone who still does the work.

Your creator

Yudha Pranaja

Senior drafter

A practitioner who teaches from their everyday work.

Courses
4
Learners
74.6K

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About becoming a creator

Learner reviews

From people who took it.

4.8out of 5

1.2K reviews

  • 581%
  • 414%
  • 34%
  • 21%
  • 10%

  • Hendra Saputra

    Residential contractor

    The site glossary saved me. The builder says one word, the drawing says another, and now I know they mean the same thing.

  • Mega Puspitasari

    Junior architect

    I used the revision check section at the office that same week.

  • Bagas Wicaksono

    Junior quantity surveyor

    In my first week at work I was too embarrassed to ask about symbols. This course closed that gap in two weekends.

Questions that come up

About this course.

All questions

01

What can I try for free?

All of chapter 1, "Lines and hatches": 6 lessons, about 38 min. No card needed. If it isn't for you, stop there.

02

What should I know before starting?

Nothing in particular. The course starts from what you see on a drawing and on site, and builds from there.

03

Subscribe or buy this course?

Pro is Rp149.000 a month and opens every course, track, exam and certificate. Buying this course is Rp199.000 once and it stays yours. If you plan to take more than two courses, Pro usually comes out cheaper.

04

Do I get a certificate?

Certificates come from track exams, not single courses. This course counts toward Reading Working Drawings, Studio-Ready Drafter, Cost Estimator. The exam runs 60 minutes and you pass at 75 percent.

05

Can I use these drawings on a project?

No. Every drawing in the course is an illustration for learning, not for construction. Use them to understand the logic, then follow your firm's standard and your engineer's drawings.

Part of

This course counts toward these tracks.

Where next

Courses people often take next.

All courses
K-SMSStart with chapter 1

Symbols, Scale and Dimensions free.

No card needed. If it suits you, go on with Pro or buy this course.

Start chapter 1 freeSee plans, Rp149.000