# Filling Holes with Rooms

Next, we place the missing rooms and merge the small rooms like small ducts, risers, and shafts with adjacent rooms. The most frequently used commands for this step are:

* ![](https://2884583650-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MaZZSUE1L_iKrqfreV9%2Fuploads%2Fgit-blob-6f176b71f1cb5efca7644326822edbffc5f98c03%2Ffill-holes-with-rooms.svg?alt=media) [Fill Holes \[with Rooms\]](https://docs.pollination.solutions/user-manual/model-editor/commands/alphabetically/me_fill_holes)
* ![](https://2884583650-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MaZZSUE1L_iKrqfreV9%2Fuploads%2Fgit-blob-0fdb99f675d90350ccc681a8263925277fc200ca%2Fmerge-with-filter.svg?alt=media) [Merge Small Rooms](https://docs.pollination.solutions/user-manual/model-editor/commands/alphabetically/me_merge_small_rooms)

{% embed url="<https://youtu.be/re46rM18zCg>" %}

For anyone who might need the files, here are the files you'll need to follow this section.

{% file src="<https://2884583650-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MaZZSUE1L_iKrqfreV9%2Fuploads%2Fp4zuWpS1CJxA7rZNvjvk%2F05-Revit%20Advanced%20Sample%20Model-Gaps-Fixed.pomf?alt=media&token=158ece01-ed3b-4518-a1fd-e6a8ea4e88ba>" %}