# Create boundary

![](https://2884583650-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MaZZSUE1L_iKrqfreV9%2Fuploads%2Fgit-blob-6f0b298ff6483f9162425ba1403efe7f6353608d%2Funite-square-duotone.svg?alt=media)

Create polyline boundaries around a selection of rooms. The command can return polylines for either the exterior border around the rooms or just the holes (or both).

## Options

* **Mode**

  The calculation mode for creating boundaries. The options are Include Holes, Exclude Holes , and Holes Only
* **Merge Distance**

  The maximum distance between rooms below which the boundary will be drawn around the rooms together (instead of being separate for each room). Setting a non-zero value here will allow you to draw boundaries around rooms that have gaps in between them (crossing gaps up to the specified distance)

## Details

You can use the generated borders for aligning the existing rooms or creating new rooms. See the line commands for the full list of the available commands.

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Create Boundary
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