> For the complete documentation index, see [llms.txt](https://docs.pollination.solutions/user-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pollination.solutions/user-manual/model-editor/commands/alphabetically/me_join_coplanar_faces.md).

# Join coplanar faces

<img src="/files/RwOELCiHK6xyVBcHRfAE" alt="" height="50" width="50">

Join coplanar walls of the room, effectively removing colinear vertices from the room polygon. Use this command to simplify the geometry and clean up the model before running 'solve adjacency' or 'alignment' commands.