Well, I've started trying to get into some more advanced building techniques. I'm trying to put in these split level stairs, but the room next to the stair landing is causing me some problems.

It either has that big hole in the wall as the wall slopes down to meet the landing.


Or if I try and flatten that room, the floor in the landing slopes up.


I've been fiddling with it to try and fix this, but I just seem to find myself going between those two above scenarios as seen in the screenshots.

Any help would be greatly appreciated.

This is normal game behaviour. You can't fix it. You will need to somehow incorporate the missing/sloped floortile on the top level into your biulding (wall it in or make an open gallery).

Alright, thanks for the info. I'll just bring the staircase out a little further and avoid the problem altogether.