Spider Castle Carpet is treated as flooring/paths?

[RiceMov®]

Trying to furnish one of my building interiors for my settlers and they both use dawn/dusk paths but it seems that when I place down a Spider Castle Carpet it ruins the smooth pattern, I am assuming that the properties are wrong? Debug menu says it falls under a "tiles.floors" shouldn't it be under "objects.decorations.carpets"?

[amazingfrog16]

shrug