Technical Drawing

Building Technology · Level 6  ·  5 Chapters

Compiled by: Wambui Muriuki

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What Technical Drawing covers

Learners in Building Technology Level 6 produce orthographic, isometric and oblique drawings in Technical Drawing, and then read building sections and elevations. Symbols, abbreviations, first and third angle projection and dimensioning tie the unit to working drawings. Underneath sit the basics: choosing and looking after equipment and materials, constructing forms and angles from different line types, and unfolding regular solids into flat patterns, whole or cut.

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Careers after Technical Drawing

In the world of building and construction, the ability to turn ideas into clear, accurate drawings is the foundation of every project - from a modest family home in Kiambu to a multi-storey complex in Nairobi’s Central Business District. Mastering the drawing skills in this unit opens doors to many practical roles where precision, safety and clear communication are prized.

  • Construction firms and contractors - Use your knowledge of drawing equipment, line conventions and dimensioning to produce shop-drawings, layout plans and detail sketches that guide carpenters, masons and steelworkers on site. Accurate orthographic and isometric drawings help teams in Nakuru, Eldoret or Mombasa cut materials to the right size and avoid costly re-work.
  • Architectural and engineering consultancies - Apply geometric construction, angle measurement and trigonometry to develop concept designs, façade elevations and structural details for residential, commercial and institutional projects. Your ability to interpret first- and third-angle projections ensures that clients and supervisors in Kisumu or Machakos receive drawings they can read without confusion.
  • Prefabricated housing workshops - Produce precise patterns and surface developments of regular solids that are cut, welded or assembled in factories producing modular homes for peri-urban settlements. Correctly marking symbols and abbreviations speeds up CNC programming and reduces material waste.
  • Road, bridge and infrastructure contractors - Generate clear isometric and oblique drawings of drainage systems, retaining walls and temporary works that field engineers in Turkana or Kitui rely on for safe installation and alignment. Accurate angle bisecting and measurement are essential for grading and slope calculations.
  • Interior fit-out and furniture workshops - Create freehand sketches and detailed orthographic elevations of cabinets, metal frames or decorative panels for hotels on the coast or boutique cafés in Westlands. Interpreting symbols for finishes and hardware lets you quote jobs confidently and meet client expectations.
  • Community development NGOs and county building departments - Provide low-cost, hand-drawn site plans and elevation sketches for schools, health centres or affordable housing schemes in rural districts. Knowing how to safely dispose of drafting waste and follow environmental guidelines demonstrates professionalism and community responsibility.
  • Freelance drafting services - Offer remote drawing support to small contractors, real-estate developers or DIY builders across Kenya. Your competence in producing accurate dimensions, annotations and surface developments lets you charge per drawing set, turning a hobby into a steady income stream.
  • Building material manufacturers - Assist product engineers in designing molds, formwork or prefabricated panels by developing precise geometric forms and angle constructions, ensuring that the final product fits the intended building specifications.

Every skill you hone - from selecting the right drafting tools to interpreting complex symbols - makes you an indispensable link between design ideas and the built environment. Keep drawing, keep improving, and watch your work shape the skyline of Kenya.

Chapters

What Technical Drawing covers: 22 main topics in 5 chapters

1. Use and maintain drawing equipment and materials

  1. 1.1 Identification of drawing equipment
  2. 1.2 Identification of drawing materials
  3. 1.3 Use and maintenance of drawing equipment's
  4. 1.4 Use of drawing materials
  5. 1.5 Waste material disposal-EMCA 1999

2. Produce plane geometry drawings

  1. 2.1 Types of lines used in drawings
  2. 2.2 Construction of geometric forms
  3. 2.3 Construction of angles
  4. 2.4 Measurement of different angles
  5. 2.5 Bisection of different angles
  6. 2.6 Freehand sketching of geometric forms, tools and equipment

3. Produce solid geometry drawings

  1. 3.1 Interpretation of sketches and drawings of patterns
  2. 3.2 Development of truncated and untruncated regular solids

4. Produce pictorial and orthographic drawings

  1. 4.1 Meaning of abbreviations and symbols
  2. 4.2 Drawing and interpretation of orthographic drawings
  3. 4.3 Dimensioning of orthographic drawings
  4. 4.4 Interpretation and production of isometric drawings
  5. 4.5 interpretation of oblique drawings

5. Interpret building drawings

  1. 5.1 Symbols and abbreviations
  2. 5.2 interpretation of Dimensions and annotations
  3. 5.3 Interpretation of building section elements
  4. 5.4 Interpretation of building elevations

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Beyond the syllabus

Other units in Module III