Technical Drawing

Interior Design · Level 4  ·  6 Chapters

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What Technical Drawing covers

In this unit, you will be able to confidently use and maintain essential drafting tools to create precise technical drawings. You will master the skills to accurately draw geometric shapes, apply architectural symbols, and produce clear orthographic projections that bring your designs to life. By the end, you’ll be ready to present professional, detailed drawings that meet real-world project standards with confidence and skill.

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Careers after Technical Drawing

Starting your journey with technical drawing opens doors to many hands-on opportunities across Kenya’s built environment. The precision and confidence you gain with drafting tools, symbols, projections and dimensions are the foundation that architects, interior designers, construction managers and furniture makers rely on every day.

  • Architectural and interior design studios in Nairobi, Mombasa or Kisumu - you prepare clean, scaled floor plans and elevation drawings that clients review before a project starts, earning a salary as a junior drafter or charging per-drawing fees as a freelance designer.
  • Construction firms working on residential estates in Kiambu or Nakuru - you produce site-ready orthographic projections and dimensioned details that guide carpenters, electricians and plumbers, receiving a regular wage or project-based payment for each set of construction drawings.
  • Furniture manufacturing workshops in Thika or Machakos - you draft accurate component layouts and assembly diagrams using proper line types and symbols, helping the workshop cut material efficiently and earning commissions or a fixed stipend for each product line you design.
  • County planning and building approval offices in Eldoret or Garissa - you submit compliant technical drawings with correct title blocks and border lines, enabling developers to obtain permits; you are employed as a drafting officer and receive a government salary.
  • Real-estate development companies developing mixed-use complexes in the coastal tourism belt - you create detailed layout plans and dimensioned sections that coordinate architects, landscape designers and contractors, earning a professional salary or performance-linked bonuses.
  • Community housing NGOs operating in rural districts - you volunteer or contract to produce simple, cost-effective housing schematics using basic geometric shapes and clear annotations, receiving stipends or project allowances while helping improve living standards.
  • Self-run drafting service from a home studio in Westlands or Karen - you market your ability to quickly produce accurate orthographic views and dimensioned drawings for small contractors, charging per drawing or hourly rates and building a client base across the country.
  • Technical education centres or TVET colleges in Nakuru or Kitale - you teach new learners how to maintain drafting tools and apply industry standards, earning a teaching salary and gaining respect as a skilled mentor.
  • Boutique interior finish shops in the Rift Valley - you translate client concepts into precise wall-panel and lighting layouts, using proper symbols and line conventions, and you are paid per project for the design package you deliver.

Your mastery of manual drafting not only makes you indispensable in these workplaces, it also gives you the confidence to start your own design consultancy or freelance studio. Keep practicing, and watch your sketches turn into real spaces that people live, work, and celebrate in.

Chapters

What Technical Drawing covers: 54 main topics in 6 chapters

1. Determine tools and equipment

  1. 1.1 Introduction to technical drawing
  2. 1.2 Identification of manual drafting tools
  3. 1.3 Tools specification and selection
  4. 1.4 Application of Drafting tools
  5. 1.5 Maintenance of Drafting tools are maintained

2. Apply line types and symbols

  1. 2.1 Mounting drawing sheets
  2. 2.2 Identification of border lines and title blocks
  3. 2.3 Standards for lettering styles
  4. 2.4 Types of lines and their meanings
  5. 2.5 Architectural symbols
  6. 2.6 Importance of clarity in drawings
  7. 2.7 Application of drafting lines and architectural symbols
  8. 2.8 Dividing lines and circles into equal parts and ratios
  9. 2.9 Inscribing and circumscribing circles

3. Produce plane geometry

  1. 3.1 Construction of Geometric Forms
  2. 3.2 Construction of Angles
  3. 3.3 Measurement of Angles
  4. 3.4 Construction of scales
  5. 3.5 Geometric construction techniques
  6. 3.6 Labelling of Constructed figures
  7. 3.7 Presentation of Constructed figures

4. Produce orthographic projections

  1. 4.1 Identification of Drawing Lines
  2. 4.2 Line thickness and applications for technical clarity
  3. 4.3 Orthographic Projection Techniques
  4. 4.4 Principles of first angle and third angle projections
  5. 4.5 Views in orthographic drawings
  6. 4.6 Dimensioning and Lettering
  7. 4.7 Accurate dimensioning techniques for orthographic drawings
  8. 4.8 Standards for lettering styles and alignment
  9. 4.9 Construction of Orthographic Views
  10. 4.10 Techniques for freehand and scaled drawings
  11. 4.11 Freehand Drawing Techniques
  12. 4.12 Use of scale rulers and accuracy in scaled drawings
  13. 4.13 Interpretation of Orthographic Drawings
  14. 4.14 Standard conventions for orthographic projections
  15. 4.15 Application of orthographic views in architectural and interior design contexts

5. Apply dimensions and annotations

  1. 5.1 Types of dimensioning
  2. 5.2 Purposes of dimensions
  3. 5.3 Dimension line drawing
  4. 5.4 Placement of dimensions
  5. 5.5 Labelling of views, placements and materials
  6. 5.6 Annotations
  7. 5.7 Application of Standard notation and abbreviations

6. Produce pictorial drawings

  1. 6.1 Isometric Drawings
  2. 6.2 Techniques for producing isometric drawings as per conventions
  3. 6.3 Applications of isometric drawings in interior design and architecture
  4. 6.4 Axonometric drawing
  5. 6.5 Applications of axonometric drawings in interior design and architecture
  6. 6.6 Oblique Drawings
  7. 6.7 Distinctions between isometric and oblique views
  8. 6.8 Real world applications of oblique drawings
  9. 6.9 Perspective Drawings
  10. 6.10 Display of the pictorial drawings
  11. 6.11 Presentation of the pictorial drawings displayed.

Revise this unit

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Beyond the syllabus

Other units in Module II