BIM files are digital records of building components, systems, and data. Architects, engineers, and contractors use these files to improve collaboration and support better decisions. Each file stores 3D geometry, materials, and performance data for every building component.
Level of Detail (LOD) measures how complete and accurate a BIM model is at each project stage. Teams use LOD to set how much information a model should carry — from early conceptual design through to construction and long-term operation. Higher LOD values mean richer, more actionable data.
In practice, a higher LOD gives the BIM file more detail for construction, facility operation, and maintenance. Teams choose the right LOD based on project needs and specific use cases. Contact us to learn how our 3D scanning services can support your BIM workflows.
BIM uses five Levels of Detail (LOD) to define how much information a model contains. Each level adds precision and usability for construction teams, engineers, and facility managers. Choose the right level based on your project phase and goals.
LOD 100 captures the building’s basic form, size, and spatial layout using simple shapes. It does not include precise dimensions or system details. Design teams rely on LOD 100 during early planning to establish project scope and budget.
Key elements include:
This level supports initial feasibility studies. However, it lacks the precision needed for construction or detailed engineering work.
LOD 200 adds more defined geometry and approximate dimensions. The model shows wall locations, door and window placements, and major system layouts — including HVAC, electrical, and plumbing. Design teams use LOD 200 to develop the design and refine cost estimates.
Key elements include:
This level supports design development. Additionally, it helps establish a basis for more detailed engineering and coordination work.
LOD 300 provides precise geometry, dimensions, and component-level detail. Every element carries accurate size, shape, location, and orientation data. Engineers use LOD 300 to produce construction drawings and coordinate across disciplines.
Key elements include:
Furthermore, the model at this stage can identify and resolve clashes between structural, mechanical, and electrical systems before construction begins.
LOD 350 extends LOD 300 by adding connection details, system interfaces, and support structures. Contractors use this level to sequence construction activities and plan installations. The increased detail reduces field errors and supports prefabrication workflows.
Key elements include:
As a result, teams can hand off LOD 350 models directly to fabricators and trade contractors with confidence.
LOD 400 reflects the building exactly as constructed. The model contains all system components with precise specifications, dimensions, and installation details. Facility managers rely on LOD 400 data for operations, maintenance scheduling, and future renovations.
Key elements include:
Our 3D scanning services capture as-built conditions with submillimeter accuracy. Consequently, we can bring existing buildings to LOD 400 quickly and cost-effectively.