Quantity calculation is a core responsibility for cost professionals, often consuming between 50% and 80% of their time.
Moreover, the calculation process is often tedious and repetitive, which increases the risk of human error and leads to inaccurate quantity estimates. This issue becomes even more pronounced in large-scale, complex projects with diverse structural elements. Traditional manual calculations are no longer sufficient. Additionally, any design changes during the project require redrawing the plans. Even minor modifications can significantly impact the entire set of design drawings, necessitating a full recalculation of quantities and increasing the workload for cost personnel. These challenges often result in inaccurate measurements, complicating project cost control.
BIM technology addresses these challenges through automated quantity calculations, eliminating human error and providing objective, reliable data. By leveraging a detailed BIM 3D model, quantities are derived through precise entity deduction, significantly improving accuracy. When design changes occur, the BIM model can be updated and linked throughout the project lifecycle. This means that only the modifications need to be applied within the BIM model, and all related parameters—including scheduling, cost, quantity, and material details—will automatically update. Even floor plans, elevations, and sections are linked and adjusted accordingly. This integration reduces the need for designers to manually revise drawings and minimizes repetitive calculations for cost professionals, greatly enhancing overall efficiency.
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