== Buildings ==
[[Wall plan]]s for [[House (general)|house]]s can only be built in flat land (0 slope), regardless of skill.
== Walls and fences ==
'''Note:''' These skill limits do not apply when building small [[low stone wall]]s at cave entrances.
Two corners going into 1 corner can result in a "hidden edge" being steeper than 40 making it unable for animal driven carts to walk up.