The software system defines their properties and behaviours, hence, users cannot manipulate or ‘redefine’ them. Anything that has been built into the software – walls, doors and floor families, or even project data – cannot be deleted or edited by the users. System familyĪs mentioned above in our rectangular columns example, a System family cannot be edited. These are not to be confused with Types all three are still classifications of family in Revit. We can further categorise families based on their behaviours giving us – the System family, the Component (Loadable) family and the In-place family. That is just the definition of a Family in Revit. Revit Family Terminology Branches In A Family While working in Autodesk Revit does not necessarily mean working with BIM, Revit families are often also referred to as BIM components. We choose the type of an element (for example, a 200mm thick wall) which is in fact part of the Wall family.īuilding components are not the only Revit families available even furniture, texts and dimensions can be part of a Family. Even when you do not understand the concept behind Revit families, it is safe to say you have been using them in your modelling process in Revit. A Revit family shares the same functions and behaviours as well as an overall look, though each type in the family may have slight variations.
Autodesk states that all elements in Revit are in defined hierarchies and are parts of a family. Now, it’s time to define what a family in Revit is. We cannot edit the Rectangular Column family but we can modify each type in this family. The types in this family include 300mm x 300mm rectangular columns and 600mm x 600mm rectangular columns (they may be many more types in the software). We want rectangular columns which are actually part of an uneditable system family (more about this below). Say, we want to add columns to the structure. A family can consist of more than one type, a set of values that can conveniently switch many variables of a family at once. The difference between a category and a family is that the definition of a family is less broad, i.e. Just like how all elements are part of a Category, they also belong to a defined family. To define elements and their behaviours better, we have the next level in the hierarchy – Families. The Categories are manifested in all shapes, sizes and behaviours. On the other hand, Annotation Categories are dimensions, tags, and texts. The elements in the Model Categories include elements of your model like doors, windows, beams, and walls. The most common categories a Revit user will encounter are the model and annotation categories. The first level of hierarchy is the Categories, pre-defined and uneditable. Before we dive into a definition of the Revit family, we should first understand the hierarchy in a Revit model.
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