In Revit, the hierarchical structure is organized into four levels from top to bottom: categories, families, family types (or symbols), and family instances. A family represents a unique model form within Revit, serving as the foundation for all elements. By adjusting family parameters, users can modify the size, material, and position of these elements. Revit’s Family Editor enables users to select the appropriate family template to create the desired component families efficiently.
Revit includes three main types of structural families:
- System families
- Standard component families
- In-place families
The standard component family templates usually refer to pre-built templates tailored to specific industry needs. Users can create family components manually by selecting the appropriate family or template based on their requirements. Universal templates include user-based metric templates, customized universal models, and other thematic universal models. Once created, these family components can be saved as separate files outside the project environment and loaded into projects whenever needed.
Family parameters are classified into two types based on their level of influence: type parameters and instance parameters. Type parameters primarily relate to design attributes shared by all instances of a given family type. Conversely, instance parameters allow individual family instances within the same family type to have unique values tailored to specific project requirements.
Changing a type parameter affects all existing and future instances of that family type within the project. However, modifying an instance parameter only impacts the selected instance without altering others.
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