i just got around to start playing with SketchUp Free to see if i can model my house before renovations… like so many other
it going ok, and i got most of 3 floors done i multiply levels and working fine with layers.
But i made the error of building my 1th floor first and then trying to make my basement.
The problem i’m running into seem like i have inverted the outer wall so its now hollow from the top but solid from the bottom.
can anyone assist in how i can fix this ?