The Dimensions of BIM Explained

BIM dimensions (3D, 4D, 5D, 6D & 7D) refer to the type of information and the way in which that information is presented in a BIM model. These dimensions enhance the data associated with a model to increase understanding and clarity on a construction project. Information in these BIM models not only shows what the project will look like, but it provides info on the cost, timeline, and sustainability of the project.

What is 3D BIM?

GEOMETRY – 3D BIM is the most common type of BIM model and shows three geographical dimensions (x,y,z) of a structure. This type of model helps stakeholders visualize a structure before the project is started. It gives architecture, engineering, and construction (AEC) professionals the insight and tools to more efficiently plan, design, construct, and manage buildings and infrastructure.

What is 4D BIM?

TIME – The 4th dimension in a BIM model shows the duration of a project. The inclusion of a timeline and scheduling information in the BIM model helps show how the project will evolve over time. This visualization of this information is extremely helpful in early-stage conflict detection.

Using a 4D model will help improve site planning and scheduling optimization. It will also increase the preparedness of stakeholders by better communicating the next steps during every stage of construction.

What is 5D BIM?

MONEY – 5D BIM helps visualize budget analysis and cost estimation for a project. It enables the stakeholders to analyze the costs of the project over time. 5D BIM is especially useful at the beginning of a project when wanting to estimate costs for different design or construction scenarios.

Using a 5D BIM model will help visualize the predicted and actual costs of a project over time with real-time notifications of cost overrun.

What is 6D BIM?

SUSTAINABILITY – 6D BIM is used to make a structure self-sustainable & energy efficient. This method includes information that allows stakeholders to analyze the energy consumption of a structure and create estimates of energy usage during the initial design phase.

Using a 6D BIM model will help reduce energy consumption in the long run and improve operational management after construction is completed.

What is 7D BIM?

FACILITY MANAGEMENT – 7D BIM improves operations and facility management by building owners and managers. This type of BIM model allows stakeholders to track important asset data like status, warranty information, technical specifications, and maintenance and operation manuals. In this model, everything related to facility management is stored within the building information model.

Using a 7D BIM model will help improve the maintenance process for contractors and subcontractors by listing all replacement parts and specifications.

Looking for a BIM Service Provider?

Axis Virtual Construction was named a 2020 Top 10 BIM Consulting/Service Company by Construction Tech Review Magazine.

We take a hands on approach when working with our clients on their BIM needs. Our range of BIM services include 3D modeling, 4D scheduling, BIM Coordination, and Post Project Analysis. We work with owners, general contractors, and fabricators on making the BIM process work efficiently for any type of project. Our team executes efficiently and provides insight on each project based on real world experience. We take the time to understand our clients’ project needs and desired outcomes.

Visit our BIM Services page to learn more and request a quote.

The Dimensions of BIM Explained