With this mod, Sims can go (and you can also place objects) under the highest part of newly bought spiral stairs. This means you have to rebuy or reset existing spiral stairs to give them those features. Moreover, those new stairs will save their new features even if you uninstall the mod... until you reset them.

This mod may affect custom spiral stairs if they're based on Apartament Life stairs.

Known bugs
You can place objects that are so high that they intersect the stairs – use with caution.

Conflicts
None that I know of.

Overriden resource

Resource name	Type name	Type	Group	Instance	Instance (high)
Init - Lo Stub	Behaviour Function	0x42484156	0x7F3B5482	0x00002004	0x00000000

Credits
Ciastko
Creators of SimPe