The benefits of calculating with BIM: building smarter, faster, and more accurately

BIM transforms project estimation by enabling faster, more efficient, and error-reduced workflows. In construction, accuracy and speed are essential throughout project execution, and notably during estimation. BIM addresses these requirements by using digital models that enhance transparency and precision, promoting project success. Below, we explain how BIM improves the estimation process, outlining key benefits in clear sections.

1. Accurate quantities and cost estimates

BIM models contain comprehensive material, dimension, and quantity data. By using this information, you can automatically generate precise quantities from the start. This process leads to:

• Fewer errors in estimates;
• Faster and more reliable cost assessments;
• Better justification for the client.

Manual measurements from drawings become unnecessary with BIM, providing a reliable basis for every cost estimate.

2. Efficiency and time savings

Automating calculations greatly reduces manual work. When the model updates, costs are calculated and refreshed quickly. This results in:

• Fewer repetitive tasks;
• Faster turnaround times;
• More room for analysis and optimization.

This leaves more time for what really matters: improving designs and making strategic choices.

3. Calculating with BIM: fewer errors and lower failure costs

An integrated BIM model enables the detection of inconsistencies and clashes early on. This prevents surprises during execution and results in:

• Fewer calculation errors;
• Better coordination between disciplines;
• Significant reduction in failure costs.

The better the coordination in the calculation phase, the smoother the execution on the construction site will be.

4. Scenario analysis and optimization

BIM enables you to quickly calculate and compare various design alternatives. This allows you to:

• Evaluate the costs of alternatives;
• Make sustainable and cost-efficient choices;
• Optimize designs even before the first stone is laid.

As a result, you gain a flexible, data-driven approach to design and estimation.

5. Transparency and collaboration through using BIM for calculations

All parties involved, from contractor to consultant, work with the same up-to-date information. This promotes:

• Clear communication;
• Better collaboration between disciplines;
• More trust between the client and executing parties.

BIM becomes a single agreed source of information, which helps avoid misunderstandings and duplicated effort.

6. Integration with scheduling (4D) and costs (5D)

BIM goes beyond 3D modeling. By linking cost estimation to time (4D) and costs (5D), you gain an integrated understanding of project progress and financial development.

• 4D: visualize the schedule over time;
• 5D: track cost developments in real time.

This approach keeps you in control of both the construction schedule and budget, from concept to completion.

7. Traceability and reuse of data

In BIM, calculation data links directly to model components. This ensures traceability and makes it easy to reuse previous calculations, leading to a more efficient workflow, consistent quality, and ongoing knowledge building in your organization.

Integrating calculation in BIM drives smarter, data-driven construction, featuring fewer errors and more reliable decision-making.