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Using IFC Files

You can use information from Industry Foundation Classes (IFC) files in Revit LT models.

To use IFC files in a model, do one of the following

  • Open (import) the IFC file in Revit LT to create a new model that uses the IFC data as a starting point. Later changes to the original IFC file are not reflected in the Revit model.
  • Link the IFC file to an existing Revit model to reference its information for additional design work. The model can be updated to reflect later changes to the original IFC file.

Revit LT supports the import of IFC files based on the following International Alliance for Interoperability (IAI) data exchange standards: IFC4, IFC2x3, IFC2x2, and IFC2x.

Before opening or linking an IFC file, you can specify the template to use, load a file that maps IFC classes to Revit categories, and manually override Revit categories for IFC classes.

Topics in this section
  • About Linking to IFC Files
    Link to an IFC file when you want to perform additional design work in Revit LT using the IFC file as a reference.
  • Link an IFC File
    To use an IFC model as a reference for additional design work, link the IFC file to a Revit model.
  • Open an IFC File
    When you use Revit LT to open (import) an IFC file, Revit LT creates a new model using the default template.
  • Select a Template for IFC Files
    When you open or link an IFC file, Revit LT creates a new model using the first template listed under File Locations in the Revit LT Options dialog. Before using an IFC file, use the Import IFC Options dialog to specify an alternate default template.
  • Load an IFC Class Mapping File
    Before opening or linking an IFC file, use the Import IFC Options dialog to load a file that maps IFC classes to Revit categories and subcategories.
  • Override Categories for IFC Objects
    Before opening or linking an IFC file, use the Import IFC Options dialog to specify Revit categories and subcategories for each IFC class.
Parent topic: Using Information from Other Applications

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