# Create boundary

<img src="/files/Ri0gUZ9OxVndJBUyhhRM" alt="" height="50" width="50">

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)


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