# Predefined Dimensions (Smart Dimensions)

**Predefined Dimensions** is a tool that can **automatically dimension elements** in a view according to predefined settings. It can place hundreds of individual dimensions for each specified element or just several dimensions that include many references or a combination of both.

This tool can be used in any user-created Revit views or it can be combined with [**Views**](https://docs.besmart.software/2d-drafting-and-documentation/smart-documentation/views-smart-views) or [**Assemblies**](https://docs.besmart.software/2d-drafting-and-documentation/smart-documentation/assemblies-smart-assemblies) configurations to generate new views that come already dimensioned.

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Predefined Dimensions tool is also known as **Smart Dimensions** and is used in many other Agacad solutions. You can read the full [**Smart Dimensions Technical Documentation here**](https://docs.besmart.software/common-for-several-products/smart-dimensions).
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