Can't place spiral stairs anywhere - says "Can't intersect objects"

[jand0387]

I can't place the spiral stairs even though there is no intersecting objects.

Is there a way to fix this without having to erase everything?

[saltpastillen]

Try again and remove everything close to the area (also on the next floor) sometimes a light fixture can be in the way.

[DanBrunetu]

and try to begin wth the spiral stairs from the first floor.

[KRae]

Have you removed the roof?

[LenaLJ]

Windows in the walls beside the stairs can often block stairs.

[Variosities]

Spiral stairs cannot be placed under another spiral stair, so start at the bottom. You also need to remove any doors, windows, fences, lights, and pictures from the walls and ceilings within your stair footprint. Also, I've recently had problems with elevations and have had to use ConstrainFloorElevation False to flatten the location for stairs (and other things).