Quantity Surveying: The art of measuring and quantifying all materials and work items from drawings.
Key Methods of Measurement
| Type | Unit | Example | Calculation |
|---|---|---|---|
| Linear | Meter (m) | Wall, column, beam | Length only |
| Surface | Square meter (m²) | Plaster, painting, floor | L × B |
| Cubic | Cubic meter (m³) | Concrete, excavation | L × B × H |
| Unit Count | Number (No.) | Doors, windows, tiles | Counting |
Responsibilities of QS (Quantity Surveyor)
- Measuring quantities from drawings
- Preparing Bill of Quantities (BOQ)
- Cost estimation and rate analysis
- Budget control during execution
- Processing variation orders
- Contract administration





