How to create boundary from joined boxes

[ducminhjr.20 (Oliver)]

I have a lot of stacked box and I want to make a boundary from them. Someone can help me to do this?
Thanks in advance !!!

[laurent_delrieu]

Hello
I am quite sure this question has already been asked. Did you search on this forum or on others places on the net?

Remove duplicate geometries

Sorry about that, like I said I’m new here. And I doubt this would be helpfull if I join the .gh file or rhino because th .gh file is link to a shapefile from which I extract metadata (informations)3D_site_Halles_v2.3dm (16.6 MB) 3D_site_analysis_V1.gh (29.6 KB)

https://www.grasshopper3d.com/m/discussion?id=2985220%3ATopic%3A565931
…
It is also good to post some file, geometry …

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[ducminhjr.20 (Oliver)]

Thank you for your help. I’ve try to search but i couldn’t find this topic.
I will have experience for next time.
Thank you