Plank walls

I've seen numerous pictures of people's forts, most people using stone walls. Why is it that people rarely use plank walls? Is it just the cost, or there's some quirk about it I don't know of?
Darkside wrote:So with splash you want to build plank as an inside later to stone right?
Does splash penetrate multiple layers? Like if I have 3 stone wall layers without any spacing when someone wastes a section of outside wall does it damage both inside layers or just the middle one?
Gallient wrote:Darkside wrote:So with splash you want to build plank as an inside later to stone right?
Does splash penetrate multiple layers? Like if I have 3 stone wall layers without any spacing when someone wastes a section of outside wall does it damage both inside layers or just the middle one?
If the walls are connected sections then they will only splash 1 tile, however if the walls aren't connected(as in different layers) from all the tests I've conducted the splash can go up to 6 tiles and yes it will damage multiple layers. So if you have 3 stone walls right next to each other this is likely how it's going to go:
Raider will destroy first wall, damaging both the second and third wall by aprox 80%.
Raider will destroy second wall(which only had around 20% health remaining).
Splash from second wall will finish off the already damaged third wall.
So with 3 stone layers right next to each other you are effectively only getting ~1.2 stone layers worth of defense.
Mereni wrote:That's wrong. Splash will only damage the next layer, not several.