What is the main purpose of a quantity survey?

The main purpose of a quantity survey is to assess and document the quantities of materials and labor needed for a construction project. This process involves detailed measurements of all required resources, which allows estimators to provide accurate cost estimates and project budgets. By establishing the exact amounts of each material and the labor needed, quantity surveyors facilitate effective project planning and help ensure that the project remains within budget and on schedule.

This role is critical in the construction industry, as it enables various stakeholders, including project managers and clients, to understand the financial implications of the project based on realistic material and labor needs. Accurate quantity surveying helps prevent cost overruns, ensures the availability of the right materials when needed, and contributes to efficient resource allocation throughout the project lifecycle.

While creating architectural designs, negotiating contract terms, or evaluating subcontractor qualifications are important aspects of construction management, they serve different objectives and are not the primary focus of quantity surveying.