What are BIM dimensions?

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Let's take a closer look at each of the BIM dimensions, which have their own unique purpose and advantages.
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What are BIM dimensions?

What's the bottom line?
Based on the article "BIM Dimensions - 2D, 3D, 4D, 5D, 6D, 7D, 8D: Details and Benefits" from BIMCommunity

Building Information Modeling (BIM) is a dynamic process for developing object-oriented models that represent the entire lifecycle of a project. During this process, a consistent digital description of every aspect of the object being built is created.

The description includes 3D visualizations of the object, information about its design elements, as well as the progress of the object’s execution, handover, and operation. At the international level, BIM and the data associated with this process are phone number kuwait precisely defined in the ISO 19650 and ISO 12006 standards.


BIM dimensions define how specific data types are linked to the information model. By adding new data types, you can gain more insight into the construction project and address issues related to logistics, cost, and timelines.

Working with different dimensions allows you to get detailed information about every nuance of the project, which contributes to a more efficient design and construction process. Requirements should be clearly listed in the brief provided to the project team.

7 Types of BIM Measurements
2D, 3D, 4D, 5D, 6D, 7D and 8D – each of these BIM dimensions has its own unique purpose and benefits: they are useful for determining the cost of a project, the timing of its completion and the degree of negative impact of the facility on the environment. Let's take a closer look at each of these dimensions.

2D BIM
This category includes graphic information models (drawings) presented in only two planes. Various computer-aided design (CAD) systems are used to create drawings quickly.

Nowadays, 2D drawings are rarely associated with information modeling. However, they contain valuable information about the various constraints and concepts associated with the model.

3D BIM
The 3D BIM category includes object-oriented models presented in space in a three-dimensional coordinate system and linked to other information about the project.

3D models make it easy to create 2D drawings with varying levels of detail.

Advantages

3D BIM ensures project accuracy and efficiency and reduces the risk of conflicts
3D BIM helps to establish internal coordination between the design team and exchange of expectations from the project
3D BIM provides transparency of all processes from the very beginning, which helps to avoid rework and revisions of drawings
4D BIM
4D BIM is a time-based project planning. It includes the management of data that determines the project completion dates and its development throughout its implementation. The 4D model describes in detail the time required to construct the facility, as well as to put it into operation.

Advantages

4D BIM improves planning and optimizes work schedules
4D BIM facilitates continuous collaboration between architects, contractors, engineers and other stakeholders
4D BIM prepares the team for each stage of construction in advance, avoiding costly delays
What is 4D BIM and how does it relate to a 3D BIM model?

5D BIM
At the 5D level, the information model is supplemented with the data needed to estimate the cost of a construction project. The 5D model is useful in situations where budget and cost determination is critical at the beginning of a project. It allows owners and clients to analyze financial costs throughout the life of the project, and helps anticipate potential costs and determine whether the project team should provide information on operating costs.

Advantages

5D BIM visualizes costs in real time and notifies project participants of cost changes throughout the construction of the facility
A 5D model can be used to obtain a simplified list of projected or actual costs for a project, the data for which is extracted using cost or budget analysis.
5D BIM eliminates the possibility of deviation from budget through regular reporting and cost monitoring
6D BIM
The 6D model describes in detail the aspects of managing the delivered object. For modeling in the 6D BIM format, all stakeholders must clearly understand the expectations from the project and the required data set. It is worth noting that not all industry participants agree on the allocation of this function as a separate dimension.

Advantages

With the help of a 6D model, you can track data on the condition of the object, how maintenance is carried out, as well as warranty information, technical specifications and other nuances that may be useful in the future.
The 6D model collects all the necessary data for managing an object in one place, improving the quality of service throughout its entire life cycle.
7D BIM
The digital information model in 7D dimension helps to analyze energy consumption data and helps to increase the environmental sustainability factor of the object. It helps in quantitative assessment of energy consumption at the initial stages of design.

Advantages

7D BIM delivers energy savings throughout the entire project lifecycle
7D BIM helps stakeholders make decisions faster at the pre-implementation stage of a project
7D model facilitates the analysis of economic and operational aspects of the building
8D BIM
The 8D BIM dimension is allocated to add data to the project information model on the measures that must be taken to ensure safe construction and operation of the facility. As in the case of 6D BIM, in order to obtain accurate results, it is necessary to approach the systematization of data and the description of all possible attributes very carefully.

Advantages

Preventing accidents and incidents by incorporating safety features into the design
Designers can conduct a thorough risk assessment of the building being designed