Chain-link fences does not hide tile borders
For now every walls hides correctly tiles border but not the chain-link fences. It should have a base to hide tiles borders.
I've been thinking about this and experimenting with a few bases but nothing looks right for the design intent of the chain-link fence. If a chain-link fence were to be installed on concrete, you would expect the fence posts to be set in the concrete and so the fact it sits on top of the tile below isn't really an issue. Do you have specific instances where you think this looks incorrect?
I have a suggestion, though it may be more work than it would be worth. Have the fence on the edges of the tiles and have a small, thin concrete foundation for it. And I mean ON the edge; so that two placed next to each other rotated 180 degrees would look like one. That would take care of both outer and inner corners. At least, if you could figure out how to do the collision properly...