Engineering & Architecture
BIM Modeling Outsourcing: LOD, Clash Detection and Revit
BIM capacity is often the bottleneck on modern projects. Here is what to know before outsourcing BIM modeling.
BIM modeling outsourcing works best when you define the level of development (LOD), share your BIM execution plan and families, and agree on a clash detection and coordination routine. Dedicated BIM modelers who work in your cloud environment integrate smoothly with your project teams.
LOD explained
| LOD | Meaning |
|---|---|
| 200 | Approximate geometry for design intent |
| 300 | Accurate size, shape and location |
| 350 | Adds interfaces between systems |
| 400 | Fabrication-ready detail |
| 500 | Verified as-built model |
Clash detection routine
- Federate models in Navisworks or similar tools.
- Run clash tests by discipline.
- Group and prioritise clashes.
- Assign and track resolutions.
- Re-run tests before coordination meetings.
What to share with your modeler
- BIM execution plan.
- Templates and shared parameters.
- Family libraries.
- Naming conventions.
- Model ownership and responsibility matrix.
Skills to test
Ask for a small Revit model with a custom parametric family and a clash report from two sample models.
See our BIM modelers and CAD designers.
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