Parametric Estimating
Parametric estimating uses statistical and mathematical data to estimate the resources and costs of the construction project. This method uses assumptions in mathematical form to analyze the possible needs of the project. It uses a statistical relationship between the historical data and variables to generate results.
This type of method usually generates the most accurate type of estimates. It can applied to the overall project or different segments of the project. Professional estimators use parametric estimating for deciding the budget because it is known to be reliable.
Parametric estimating generates two types of results that are:
Despite being the most reliable and accurate, parametric estimating is not always the best option for project values. These three conditions need to be met when using it:
A construction project consists of multiple contractors responsible for different aspects of the project. Accurate takeoff enables project planners to understand what each contractors require to complete their part of the project which helps them to plan and schedule their work accordingly. It ensures the contractors have the right resources at the right time to minimize delay and maximize productivity