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BIM dimensions explanation and benefits 2D, 3D, 4D, 5D 6D and 7D BIM.

  • 1 What are BIM dimensions?

  • 2 2D BIM dimension

  • 3 3D BIM dimension (The shared information model)

  • 4 4D BIM dimension

  • 5 5D BIM dimension

  • 6 6D BIM dimension(Project life cycle information)

  • 7 7D BIM dimension(+ life cycle)

  • 8 Conclusion

To simply put this, building information modeling (BIM) is a process of using a well structured digital information to deliver, design, operate, and also hand over building projects.

BIM is a process that is becoming increasingly popular in the AEC (archit

ecture, engineering and construction) and building industry. Building sectors such as the architectural sector, engineering sector, and the construction sector – each have defined purposes and unique benefits of BIM. For example, in the construction sector, BIM helps to reduce wastage of building materials and also virtually assess the risk of the project. Most importantly, BIM helps to detect where clashes take place and also make sure there is a reduction of mistakes on site, etc.

Perhaps the major and overall advantage of the BIM process is that it supports the construction process and the design process from scratch to the whole package and beyond for all the parties that are involved in it.

It is safe to say BIM – building information modeling has revolutionized the building sector across the world by enabling any authorized person, from any part of the world, access the building information and communicate and collaborate with people on-site.

That being said, it is then of utmost importance that builders, designers, and project sponsors alike fully understand the BIM models, BIM software, and its components.

What are BIM dimensions?

BIM dimensions give you a better understanding of your construction project and the process of linking additional dimensions of data to your building models. In this section, w


e will explore different BIM dimensions, namely 2D, 3D, 4D, 5D, 6D, and 7D BIM dimensions.

2D BIM dimension

2D dimension is the earliest form of construction models. It constitutes a simple X-axis and Y-axis. These models are generally made by hand using manual processes or through the use of CAD drawings.

3D BIM dimension (The shared information model)

3D BIM is arguably the most popular BIM dimension that all construction companies are familiar with. It is also referred to as a coordinated model.

3D represents the 3-dimensional geographical structures of a building – that is the X-axis, the Y-axis, and the Z-axis of a building. 3D BIM entails the creation of graphical and non-graphical building information for the sole purpose of sharing it in a common data environment (CDE).

3D models are employed to schematic designs, design development and documentation, construction documentation, and record drawings. By using 3D BIM, you will be able to keep your workers updated on the latest design trends.

What are the benefits of 3D BIM dimension?



  • Visualization: Throughout the entire project, 3D BIM would give you a full 3-dimensional visualization.

  • It helps to check for possible collision

  • It aids communication among the workers

  • Ensures transparency during the entire project.

  • Creates a detailed model of the impact the project would have on the environment.

4D BIM dimension

A 4 dimensional BIM model reveals additional dimensional information, known as a scheduling data or time element. This model starts with a 3D BIM, and then an application of the 4th dimension or 4D BIM, otherwise known as the time element. Hence, 4D BIM is 3D BIM + schedule.

What 4D BIM model does is provide an additional dimension of information to a building project. This process comes in the form of scheduling data. As the project progresses, this detailed data is added to the components that are being built.

What are the benefits of 4D BIM dimension?



  • It helps in planning the building site properly, including the schedule of all the construction stages.

  • Not only does it help in planning, but it also helps to increase the quality of the building site planning.

  • It brings about a good working relationship and cooperation among the stakeholders with clear deadlines.

  • It reduces disputes and unnecessary delays.

5D BIM dimension

This is 4D BIM + Estimate or cost. The function of 5D BIM modeling is to integrate cost, schedule, and design in a 3D output. This model is charged with forecasting/predicting the flow of finance for a project and visualizing the progress they have made concerning the project. Visualization brings about the feasibility and unmatched accuracy in any building project.

A major difference between the traditional approach and 5D BIM modeling is the rate at which the project cost is updated and modified. 5D approach means the cost reports can be modified at any given time. This arises as a result of unforeseen circumstances such as a change in design or other modifications.

Benefits of 5D BIM dimension



  • Cost Visualization

  • Brings about shorter project cycles.

  • Modification of project cost at any given time

  • Moe easily understood project scope.

  • Helps to alienate any form of budgetary offshoot.

6D BIM dimension(Project life cycle information)

This BIM dimension is also known as iBIM or integrated BIM. 6D BIM involves the addition of other relevant information that supports the facility’ management and operation in the hopes that it will bring about a better business outcome.

The 6D process means that a model that was created by a designe


r gets updated or modified in the course of the construction. This particular model can be submitted to the owner as an “as-built” model. The model will comprise the necessary information that will be needed in case of any future maintenance. The information includes things such as warranty information, manual information, operation, and maintenance information, etc.

Benefits of 6D BIM dimension

  • It makes decision making very easy and fast.

  • During the project lifecycle, 6D BIM brings about a detailed analysis of the economic and operational aspects of the project.

  • Helps plan for any maintenance phase.

7D BIM dimension(+ life cycle)

7D BIM basically comprises 3D + time schedule + cost intelligence + sustainability. Builders and project managers alike make use of 7D building information modeling in the maintenance and operation of a project throughout its entire life cycle. Using a 7D CAD in BIM would help optimize the project management from its design stages, up until its demolition.



Warranty information, technical specifications, operation manuals are some of the assets data that can be tracked using this dimension.

Benefits of 7D BIM dimension

  • 7D BIM helps to monitor the management of the facility or asset right from the design stage to th


e demolition stage.

  • It makes the changing of building parts and general repair of a building/project throughout its entire cycle a very easy task.

  • Pinpoint to the contractor, the maintenance process that must be followed.

KONSTRUCT & K BIM keeps everything streamlined ,updated and live for decision making . From supporting and teaching our internal team as well as our clients, we show the ins-and-outs and how to best leverage KBIM ,


to maximize workflows, cut costs, and get all types of projects through the finish line.

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