# Boolean Union

### <img src="https://3375153115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F5uhW8FwQpXQj8tHUULMo%2Fuploads%2FxyQ62jS4APw9rcUyrOo5%2FG5_01_SOLID_BOOLEAN_UNION.png?alt=media&#x26;token=5a259f59-42a3-4075-8883-2b6c349b171d" alt="" data-size="line"> Boolean Union

The BooleanUnion command trims the shared areas of selected polysurfaces or surfaces and creates a single polysurface from the unshared areas.

**Steps**

* Select the objects and press Enter.\
  The objects combine into one polysurface.

For more information, please refer to the [Rhino documentation](https://docs.mcneel.com/rhino/8/help/en-us/commands/mesh.htm).