Walls can relate to each other, and other element types, based on several factors. First, layer intersection priority defines which layers will intersect. Second, building materials determine how different composite or custom profile skins interact with each other. Lastly, wall/beam junction order determines in which order walls or beams will intersect.
Layer Intersection Priority
Walls with different layer intersection priorities do not intersect in plan. Walls overlap to their reference line.
Building Material Priority
Walls with different core building materials will have a separator line at the core. Skins may be cut through by the core if the finish skins have a lower building material priority, even if the reference line is set to the wall core.