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Architecture Experience provides a full range of BIM Level of Development (LOD) Options
Welcome to Architecture Experience Inc.
This article describes our options for BIM/Revit LOD standards. If you are requesting BIM as-built documentation, please determine the required level of information using the LOD (Level of Development) method below:
LOD 100 – Concept Design
A conceptual model where parameters like area, height, volume, location and orientation are defined.
LOD 200 – General Modeling with Schematic Design
A general model where elements are modeled with approximate quantities, size, shape, location and orientation. Non-geometric elements can be embedded with model elements at LOD 200.
LOD 300 – Accurate Modeling and Detailed Design
Accurate modeling and shop drawings where elements are defined with specific assemblies, precise quantity, size, shape, location and orientation. Non-geometric elements can be embedded with model elements at LOD 300.
LOD 350 – Greater Detail and Construction Documentation
It includes more detail and elements that represent building elements interface with various building systems and other elements with clear graphics and written definitions.
LOD 400 – Fabrication and Assembly
Model elements are modeled as specific assemblies, with complete fabrication, assembly and detailed information in addition to precise quantity, size, shape, location and orientation. Non-geometric elements can be embedded with model elements at LOD 400.
LOD 500 – As-Built Models
Elements are modeled as constructed assemblies for operations and maintenance. In addition to actual and accurate in size, shape, location, quantity and orientation, non-geometric elements can be embedded with model elements at LOD 500.
Why Is BIM Modeling More Accurate Than CAD Drafting Methods?
BIM (building information management) models are generally more accurate than CAD (computer-aided design) drawings because they use 3D parametric modeling. BIM models are more detailed and allow for real-time model analysis, which can help identify potential issues and optimize design decisions. However, models with high detailing requirements and tight engineering tolerances may still have errors relative to physical conditions, without the use of more precise measurement methods such as LiDAR scanning and photogrammetry.
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