07/08/2026
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Home » BIM and Building Design » BIM Drawings: What They Are and How They Are Generated in the BIM Process
BIM Drawings: What They Are and How They Are Generated in the BIM Process
Discover what BIM drawings are, how they are automatically generated from the information model, and why they represent a major evolution over traditional CAD drawings in terms of coordination, accuracy, and efficiency within the BIM workflow.
Editorial Team / 21 May 2026
In the transition from CAD to BIM, one of the most misunderstood aspects concerns the role of technical drawing. While in the traditional process the drawing is the main product of the design activity, in BIM it becomes a derivation of the informational model. BIM drawings fit into this paradigm shift: no longer standalone documents, but coherent and always updated representations of an integrated digital system.
Do you want to move from traditional drawing management to a completely integrated flow between model and sheets? Discover how an advanced BIM environment can support you in the automatic generation of your documents.
Understanding this transformation is essential to truly leverage the potential of BIM and improve the quality of technical documentation.
Drafts for the floor plan with Edificius
Drafts for the floor plan with Edificius
Contents [hide]
What is meant by BIM drawings
Difference between BIM drawings and CAD drawings
How BIM Drawings Are Generated
The role of BIM drawings in project documentation
BIM drawings and the future of technical documentation
FAQ
What is meant by BIM drawings
The term BIM drawings refers to all the two-dimensional graphical representations generated from a three-dimensional information model. Plans, sections, elevations, and details are no longer constructed manually but derive directly from a single digital model that contains geometries and data.
The link between information model and graphical representation
In BIM, the drawing is not an independent entity, but a view of the model. This means that every element represented on the sheet is, in fact, a parametric object endowed with information: a wall is not just a simple line, but a construction system with stratigraphy, materials, and physical properties.
The most relevant consequence is that the graphical representation becomes a “window” into the model. There is no longer a duplication of information, and most importantly, the need to manually update each drawing is eliminated. Consistency is no longer reliant on human control, but is intrinsic to the system.
Difference between BIM drawings and CAD drawings
The comparison between BIM and CAD does not only concern different tools but two profoundly different operational logics. This is clearly reflected in the drawings.
Static drawing vs dynamic model
In CAD, each drawing is created from graphical entities that have no intrinsic intelligence. The views are independent, and the designer must manually ensure their consistency and alignment.
In BIM, instead, the drawing is a direct representation of a dynamic 3D information model. The views are not standalone elements but are all connected to the same shared data source. This fundamentally changes the workflow: you no longer draw, you model.
3D model created with Edificius
the 3D model created with Edificius
Automatic Updating of Drawings
One of the most appreciated aspects by professionals adopting BIM is the automatic updating. A modification made to the model immediately and automatically propagates to all related views.
This is not only an advantage in terms of time but especially in terms of reliability. It eliminates at the root one of the main criticisms of CAD: the possibility that different drawings are inconsistent with each other.
Consistency Between Views, Sections, and Elevations
In the BIM workflow, plans, sections, and elevations are simply different views of the same model. Geometric and informational consistency is therefore inherently ensured.
This enables a more reliable process, even in complex projects where coordination between disciplines and levels of detail is a critical challenge.
How BIM Drawings Are Generated
The production of BIM drawings is not a drawing operation in the traditional sense but a process of configuring and managing the views of the model.
Creating Views from the Model (Plans, Sections, Elevations)
Views are generated by defining cutting planes and directions of observation within the model. A plan, for example, is a horizontal section at a given elevation, while a vertical section arises from the intersection with a cutting plane.
The substantial difference compared to CAD is that these views do not need to be reconstructed: they already exist implicitly in the model and are simply made explicit.
The advantage is that infinite sections and plans can be generated from the same model in practically no time. This helps, even during the design phase, to understand and manage models with complex spatiality.
If you are still producing drawings manually starting from CAD, it is time to evaluate BIM architectural design tools that allow you to obtain drawings that are always consistent, updated, and directly linked to the model.
Setting Scale and Levels of Detail
In BIM, scale is not just a printing factor, but it directly affects the representation of elements. Depending on the level of detail required, objects can change graphics, simplify, or show additional information.
This allows for effective management of the transition between different design phases, from concept to executive, maintaining consistency and control.
Annotations and Symbols
Annotations play a more advanced role compared to traditional drawing. Dimensions, labels, and symbols are not isolated elements, but are often linked to the model’s data.
This means that a dimension automatically updates if the geometry changes, and that labels can return information that is always consistent with the represented objects. For example, labels can include data such as perimeter, area of rooms, information about the types of windows and doors inserted in the model. All information that updates automatically with any change to the BIM model.
Page Layout of Drawings
The final phase consists of organizing the views within the drawings. Here, too, BIM introduces a higher level of control: the views maintain the connection with the model and any modification is immediately reflected in the layout.
The drawings thus become a reliable communication tool, always aligned with the actual state of the project. Composing the drawings becomes a quick and simple operation. Just choose the drawing board format, the scale of the graphics, and position the various documents on the drawing sheet, with the possibility of also inserting images and renders of the model, to enrich the document with information.
Executive graphic table created with Edificius
Executive graphic table created with Edificius
The role of BIM drawings in project documentation
Despite the centrality of the model, drawings remain an essential tool for technical communication, especially during the ex*****on and construction phases.
Architectural drawings
Architectural drawings continue to represent the main reference for the spatial reading of the project. In BIM, however, they gain greater informational robustness and reduce the risk of inconsistencies.
Structural drawings
In the case of structures, the direct derivation from the model allows for extremely accurate documents, where geometry and information are perfectly aligned.
Mechanical, Electrical, and Plumbing (MEP) drawings
For systems, BIM offers a decisive advantage: the ability to represent complex systems while maintaining control over interferences and relationships with other disciplines.
Edificius-MEP_graphic-drawings
Interdisciplinary coordination
It is precisely in coordination that BIM drawings show their value. Being derived from coordinated models, they become reliable tools for comparison between disciplines, reducing errors and ambiguity, and facilitating collaboration and multidisciplinary work, especially in complex projects.
BIM drawings and the future of technical documentation
The evolution of BIM is progressively redefining the role of drawings, which tend to integrate more and more with advanced digital environments.
Integration with digital twin models
In the context of digital twins, drawings can become interfaces for accessing model information, linking graphical representation and real-time data.
Evolution towards digital documentation
Technical documentation is moving towards increasingly interactive formats. Drawings do not disappear, but become part of digital ecosystems where it is possible to navigate, query, and update information.
The role of BIM standards
In this scenario, standards assume strategic importance. Defining shared rules for producing drawings means ensuring quality, interoperability, and informational continuity throughout the lifecycle of the work.
BIM drawings are therefore not simply “better drawings,” but the result of a completely different approach to design. Understanding their logic means transitioning from a culture of representation to a culture of information, with concrete benefits in terms of efficiency, control, and quality of the project.
FAQ
What are BIM drawings?
BIM drawings are all the two-dimensional graphic representations generated from a three-dimensional information model. Plans, sections, elevations, and details are not manually drawn but directly derived from a single digital model that contains geometries and data.
What is the role of technical drawing in the transition from CAD to BIM?
In the transition from CAD to BIM, technical drawing is no longer the main product of the project but a derivation of the information model. In BIM, drawings become coherent and always updated representations of the model, no longer independent elaborations.
What is the difference between BIM drawings and CAD drawings?
In CAD, drawings are static and independent graphic entities that require manual updates. In BIM, however, drawings are views of a dynamic 3D model: every change to the model is automatically reflected in all drawings, ensuring consistency and reducing errors.
How does automatic updating of BIM drawings work?
In BIM, a change to the model automatically propagates to all linked views, such as plans, sections, and elevations. This eliminates the need for manual updates and reduces the risk of inconsistencies between different documents.
Why are views in BIM always consistent with each other?
In BIM, all views derive from the same shared information model. Therefore, plans, sections, and elevations are always coherent by definition, without the need for manual checks to ensure alignment between documents.
How are BIM drawings generated?
BIM drawings are generated by creating views of the model, defining cutting planes and directions of observation. Plans, sections, and elevations already implicitly exist within the model and are simply visualized without being redrawn.
What role do scale and levels of detail play in BIM?
In BIM, scale affects the representation of elements and not just the print. Depending on the level of detail, objects can change graphics or show different information, allowing for coherent management of all design phases.
How does BIM improve interdisciplinary coordination?
In BIM, all disciplines work on coordinated models, from which coherent drawings are derived. This reduces errors, ambiguity, and integration problems between architecture, structures, and systems, facilitating collaboration in complex projects.
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