Clustering - why do some stack?

[m.hoper9DMVY]

Does anyone have any idea of the logic of the why when clustering some items stack and some don't? Example attached?

[jessica_smith]

Hi @m.hoper9DMVY !

Thanks for the post. This is known. What's happening is that there are certain element types, like Walls/Floors/Ceilings, where the number of elements is very large, and they have wildly different sizes and the stacking logic has a hard time making those look nice. The clustering makes more sense for elements with fixed shapes/sizes, like furniture, for example.

I hope that explains things. Thanks!