In Revit, components are used to model building elements that are usually delivered and installed on site, such as doors, windows, furniture, and so on. Components are instances of loadable families and are hosted by other elements, which are instances of system families. For example, a door is hosted by a wall, while a freestanding component such as a desk is hosted by a floor or a level.
Revit comes with many components already defined. To create additional components, you define them using the Family Editor. See Creating Loadable Families.
This section describes how to place and move components other than doors and windows, which are placed using different tools. (See Doors and Windows.)
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