In order to make this work completely with all objects, wouldn't tiles need to be broken up into four parts? Otherwise It'd just give the illusion that it was a smaller wall, while still taking up a whole tile.
I like the idea of breaking each tile into four. Most walls aren't as thick as they are represented in game. This would allow us to build structures out of thinner walls, while saving full four tile (current one tile) walls to actual walls meant to be barriers or defensive fortifications. Like a wall you'd have outside a city. Not the ones you build your house out of.
I don't know how much work this would take though.
I like the idea of breaking each tile into four. Most walls aren't as thick as they are represented in game. This would allow us to build structures out of thinner walls, while saving full four tile (current one tile) walls to actual walls meant to be barriers or defensive fortifications. Like a wall you'd have outside a city. Not the ones you build your house out of.
I don't know how much work this would take though.