# From surface to floor, not creating inner boundaries

**URL:** <https://forum.dynamobim.com/t/from-surface-to-floor-not-creating-inner-boundaries/75507>\
**Category:** Revit\
**Tags:** revit, geometry, dynamo\
**Created:** [April 15, 2022, 6:43am UTC](https://forum.dynamobim.com/t/from-surface-to-floor-not-creating-inner-boundaries/75507 "2022-04-15T06:43:31Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![Laura\_BIMChick](https://avatars.discourse-cdn.com/v4/letter/l/bbce88/32.png) [@Laura\_BIMChick](https://forum.dynamobim.com/u/Laura_BIMChick)\
**Post date:** [April 18, 2022, 7:44am UTC](https://forum.dynamobim.com/t/from-surface-to-floor-not-creating-inner-boundaries/75507/22 "2022-04-18T07:44:19Z")

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![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/1/5/1529f2f0048af407b3d220022b91621b51ac4652.png)

I moved the file but I’m still getting an error that makes no sense to me.

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**Author:** ![Laura\_BIMChick](https://avatars.discourse-cdn.com/v4/letter/l/bbce88/32.png) [@Laura\_BIMChick](https://forum.dynamobim.com/u/Laura_BIMChick)\
**Post date:** [April 18, 2022, 7:45am UTC](https://forum.dynamobim.com/t/from-surface-to-floor-not-creating-inner-boundaries/75507/23 "2022-04-18T07:45:09Z")

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@GavinNicholls I’m looking forward to these videos since I really wanna work with these nodes!

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**Author:** ![GavinNicholls](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/gavinnicholls/32/190442_2.png) [@GavinNicholls](https://forum.dynamobim.com/u/GavinNicholls)\
**Post date:** [April 18, 2022, 9:50am UTC](https://forum.dynamobim.com/t/from-surface-to-floor-not-creating-inner-boundaries/75507/24 "2022-04-18T09:50:00Z")

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The video should be out hopefully next Monday, but in the meantime this is the related script/code with a sample model that I use in the video:

> <https://github.com/aussieBIMguru/Dynamo_Scripts/blob/master/ABG_220425_FloorFinishes.zip>

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**Author:** ![john\_pierson](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/john_pierson/32/191977_2.png) [@john\_pierson](https://forum.dynamobim.com/u/john_pierson)\
**Post date:** [April 18, 2022, 6:09pm UTC](https://forum.dynamobim.com/t/from-surface-to-floor-not-creating-inner-boundaries/75507/25 "2022-04-18T18:09:09Z")

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Alrighty, I released a new version of Rhythm that abandons the need to invoke the node in that manner.

I had to do that initially to maintain compatibility back to Revit 2018. but… that proved to be causing more issues so I removed it.

Download the latest version (2022.4.1) and you should be good to go.

The GIF below shows the node in action with one of the considerations highlighted (force a nested list)  
 ![20220418-floorByLoops](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/0/8/084e3b18744e1832ceeace5f0ce2fbe8b0796c6a.gif)

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**Author:** ![GavinNicholls](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/gavinnicholls/32/190442_2.png) [@GavinNicholls](https://forum.dynamobim.com/u/GavinNicholls)\
**Post date:** [April 27, 2022, 11:39pm UTC](https://forum.dynamobim.com/t/from-surface-to-floor-not-creating-inner-boundaries/75507/26 "2022-04-27T23:39:41Z")

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Just in case you missed it, my video/workflow is now out. Hope it helps!

[![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/0/c/0cf85667d6e676faead0dc9adaad9b036d422361.jpeg "Floor finishes by Revit room boundary using Dynamo (revisited)!") ](https://www.youtube.com/watch?v=qzkH0kPkevM)

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