It can get a little tricky, but generally stronger materials will automatically cut weaker ones.
The tricky part comes when you have multiple skins in a wall and maybe the centre skin is the strongest.
It depends on where your wall reference lines are as to how they trim to each other.
But if one wall does not pass completely through the other wall (with the strong centre skin), then the strongest skin will stop the joining wall.
One of the forum moderators.
Versions 6.5 to 25
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