In Seinäjoki, there was Finnish Housing Fair in summer 2016. A Lakka Kivitalo made of stone is a luxurious two-stored home. This house had extra style and class with Liune doors. 

Liune door leaf slides inside a normal-sized partition wall. So it does not need that thick of a wall, just an ordinary one is enough. It creates more space because it doesn't need to turn. Building with Liune is efficent and controlled.