An overview of the importance of architectural drawing and drafting in the field of architecture, including basic principles and techniques.
Fundamental concepts, tools, and workflow for creating clear, communicative building designs.
| Aspect | Description |
|---|---|
| Definition | A visual representation of a building or space that conveys design intent, dimensions, materials, and construction details. |
| Purpose | • Communicate ideas to clients, engineers, contractors, and authorities. • Serve as a legal record for permitting and construction. • Aid in analysis of spatial relationships, structure, and performance. |
| Mediums | Hand‑sketch, ink, technical pen, raster graphics, vector CAD, BIM models. |
| Category | Typical Content | Scale (common) |
|---|---|---|
| Site Plan | Building footprint, site boundaries, landscaping, utilities, circulation. | 1:100 – 1:500 |
| Floor Plan | Walls, doors, windows, furniture layout, dimensions, room labels. | 1:50 – 1:100 |
| Elevations | Exterior façades, material notes, heights, window/door details. | 1:50 – 1:100 |
| Sections | Cut-through view showing vertical relationships, floor‑to‑floor heights, structural elements. | 1:50 – 1:100 |
| Details | Enlarged view of specific construction elements (e.g., wall assembly, window head). | 1:5 – 1:20 |
| Reflected Ceiling Plans | Ceiling finishes, lighting, HVAC diffusers, fire‑sprinkler layout. | 1:50 – 1:100 |
| Schedules | Tabular data: doors, windows, finishes, hardware. | N/A (text) |
| Perspective / Axonometric | 3‑D visualisation for presentation, massing studies. | N/A (illustrative) |
| Element | Standard Practice |
|---|---|
| Line Types |
|
| Line Weights | 0.5 mm (thin) for dimensions & hidden lines; 0.7 mm (medium) for general outlines; 1.0 mm (thick) for primary edges. |
| Text | Upper‑case, sans‑serif, 3 mm height for notes; 2 mm for dimensions. |
| Dimensioning | Orthogonal dimensions, extension lines, arrowheads, clear spacing; use metric (mm) or imperial (in) consistently. |
| Symbols | Adopt ISO 128 (or local equivalents) for doors, windows, fixtures, electrical, plumbing. |
| Title Block | Project name, drawing number, revision, date, scale, sheet size, author, approvals. |
| Layer Management (CAD/BIM) | Separate layers for Architecture, Structure, MEP, Annotations, Dimensions. |
| Tool | Use Cases | Advantages |
|---|---|---|
| Traditional Drafting | Sketch pads, drawing boards, T‑squares, |