How can you create a custom family in Revit?

Creating a custom family in Revit is effectively accomplished by starting a new family template and adding geometry. This approach allows users to define the specific parameters, geometry, and types of elements they want to include in their custom family, such as doors, windows, or furniture.

Using a family template is crucial because it establishes foundational elements and settings corresponding to the type of family being created, ensuring that any geometry added operates within the Revit environment correctly. Through this method, users can customize dimensions, materials, and behaviors, thereby tailoring the family to meet the specific needs of their project.

Although duplicating an existing family can be a quick way to modify existing elements, it does not convey the full customization capability available when starting from a template. Working from a blank project file can lead to confusion regarding family creation since projects and families are distinct entities in Revit. On the other hand, while importing families from other software is an option, it limits the level of customization and may not follow Revit's specific parameters or constraints. Therefore, starting with a family template is the most effective way to ensure proper functionality and customization within Revit.