Which estimating method accurately lists all required materials and labor?

The quantity survey method is the most accurate estimating technique for listing all required materials and labor because it involves a comprehensive breakdown of every component of a project. This method entails a detailed examination and quantification of all materials, labor, overhead, and other costs associated with construction or project execution. By using this approach, estimators create a complete Bill of Quantities (BoQ), which outlines every item required for the project, making it an effective and precise way to predict total project costs.

This method is favored in large-scale construction projects where precision is crucial, as it minimizes the risk of underestimating costs. In contrast, other methods may rely on generalizations or averages, which can lead to incomplete or less accurate estimates. The unit cost method focuses on the cost per unit but does not necessarily account for all materials and labor in detail. Analogous estimating and parametric estimating provide estimates based on historical data or statistical relationships, respectively, but also lack the granularity to detail all individual resources required for a project.

Thus, the quantity survey method stands out for its thoroughness and accuracy in capturing all necessary elements, making it the preferred choice when detailed material and labor estimates are essential.