Overview of Quantity Surveying Terms

Quantity surveying is a professional discipline within the construction industry that involves the management of the costs and quantities of materials, labor, and resources required for construction projects. Understanding the key quantity surveying terms is essential for professionals involved in cost estimation, project management, and contract administration. These terms help ensure that all project stakeholders—such as contractors, clients, and consultants—are on the same page regarding budgeting, measurement, and project execution.

Key Quantity Surveying Terms:

1. Bill of Quantities (BOQ): A document prepared by the quantity surveyor that lists all the materials, labor, and resources required for the project. It serves as the basis for cost estimation and tendering.

2. Unit Rate: A price assigned to a single unit of work, such as a cubic meter of concrete or a square meter of paving, used in cost estimation and project pricing.

3. Preliminary Estimate: A rough estimate of project costs made at the initial stages, often based on limited information, to give clients a general idea of expected expenses.

4. Detailed Estimate: A more accurate and comprehensive estimate, typically developed after the design is finalized, including specific quantities of materials, labor, and overhead costs.

5. Cost Breakdown: A detailed listing of the individual costs involved in a project, such as labor, materials, and machinery, used for both budgeting and cost control.

6. Measurement: The process of determining the quantities of materials, labor, and resources required for a project, which forms the foundation of accurate cost estimation.

7. Variation: A change in the scope of the project after the contract has been awarded, which may involve changes to the quantities, design, or work requirements, potentially affecting cost and time.

8. Tender: A formal offer to undertake work at a specified price, typically submitted by a contractor in response to an invitation to tender (ITT) or a request for proposal (RFP).

9. Contingency: An amount set aside to cover unforeseen costs or variations in the project, ensuring that the project can continue without financial setbacks.

10. Final Account: The final financial statement prepared by the quantity surveyor at the end of a project, showing the actual costs incurred compared to the initial estimates and contracts.

Importance of Quantity Surveying Terms:

Familiarity with quantity surveying terms is crucial for professionals in construction, as they facilitate clear communication, accurate pricing, and efficient project management. By using these terms, quantity surveyors ensure that all aspects of cost control, resource allocation, and financial oversight are well-understood by all project participants, promoting the successful completion of projects.

In conclusion, quantity surveying terms provide a structured framework for managing costs, measurements, and resources, ensuring that construction projects are executed efficiently, on time, and within budget.

Sat Jan 25, 2025