# I have a valid poly surface but It's still open polysurfce AND I need it to be closed!

**URL:** <https://discourse.mcneel.com/t/i-have-a-valid-poly-surface-but-its-still-open-polysurfce-and-i-need-it-to-be-closed/114759>\
**Category:** Rhino for Windows\
**Tags:** windows, rhino6\
**Created:** [December 18, 2020, 5:41am UTC](https://discourse.mcneel.com/t/i-have-a-valid-poly-surface-but-its-still-open-polysurfce-and-i-need-it-to-be-closed/114759 "2020-12-18T05:41:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![huss191998](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/huss191998/32/476095_2.png) [@huss191998](https://discourse.mcneel.com/u/huss191998)\
**Post date:** [December 18, 2020, 5:41am UTC](https://discourse.mcneel.com/t/i-have-a-valid-poly-surface-but-its-still-open-polysurfce-and-i-need-it-to-be-closed/114759/1 "2020-12-18T05:41:40Z")

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[The best bridge in the whole world.3dm](https://discourse.mcneel.com/uploads/short-url/oCoHwBaWdHIxkvdM7LCAbL6PRwR.3dm) (281.1 KB)

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**Author:** ![JavierG](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/javierg/32/476613_2.png) [@JavierG](https://discourse.mcneel.com/u/JavierG)\
**Post date:** [December 18, 2020, 7:40am UTC](https://discourse.mcneel.com/t/i-have-a-valid-poly-surface-but-its-still-open-polysurfce-and-i-need-it-to-be-closed/114759/2 "2020-12-18T07:40:06Z")

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some faces are not planar  
don’t waste time:  
**`CutPlane`** the part by the middle, **`delete`** bad object, perform **`mirror`** , **join** parts & **`MergeAllFaces`** `