
Revit LT includes a library of content in which you can access loadable families that are supplied by the software and save the families that you create. When you finish the family, you test it in a sample project before using it to create elements in your projects. You sketch the geometry of the family, use parameters to establish relationships between family components, create the variations or family types that it includes, and determine its visibility and detail level in different views.

When you create a loadable family, you begin with a template that is supplied in the software and contains information about the family that you are creating. For families that contain many types, you can create and use type catalogs, which allow you load only the types that you need for a project.


Unlike system families, loadable families are created in external RFA files and imported (loaded) in your projects.
