This may be bypassed somewhat in the sims and the sims 2 by not placing floor tiles underneath the wall enclosed object.
Sims 2 parking covered by floor tile.
In the sims 2 all structures are limited to five levels including basements and foundations.
The sims 3 fixed this by adding a height check.
For the sims 2 on the pc a gamefaqs message board topic titled can floor tiles be rotated.
In the sims all structures are limited to 2 floors.
For the sims 3 on the pc a gamefaqs message board topic titled i can t build walls because it says covered by floor tile.
I play sims 2 but the same msg pops up when you have either not placed the correct amount of tiles in the right place.
Also done by the moveobjects cheat.
This will make pitting up a wall impossible.
For the sims 2 on the pc a gamefaqs q a question titled how do i cover the entire lot with floor tiles.
I demolished a house that had a foundation then i re built a different house on the same lot without flattening it.
Set to false to allow the tiles of the sidewalk and the road to be modified as well as allowing for the placement of floor tiles on the very edges of the lot.
Or if you have one or more floor tiles too much it goes off the surrounding area and there is no stable base to place the wall.
Boolprop constrainfloorelevation true false set to false to allow tiles occupied by walls floors and foundations to have their elevations changed.
Sims will prefer walking on floor tiles over bare terrain and can only walk on floor tiles on the upper stories of a building.
Then i built the hole first floor then started on the second one and when i tried to build walls it said covered by floor tile.
A provisional floor tile are automatically created when entrance objects such as a door or stairs have no edge support.