[cube = floor]
  <wall.4 = floor>
  type = 2
  editor_icon = 4

[cube = w_wood]
  <wall.0 = w_wood>
  <wall.1 = w_wood>
  <wall.2 = w_wood>
  <wall.3 = w_wood>
  type = 1
  editor_icon = 13

[cube = w_timber]
  <wall.0 = w_timber>
  <wall.1 = w_timber>
  <wall.2 = w_timber>
  <wall.3 = w_timber>
  <wall.4 = floor>
  type = 2
  editor_icon = 21
  
[cube = w_timber_side]
  <wall.0 = w_timber>
  <wall.4 = floor>
  type = 2
  editor_icon = 22
  
[cube = empty]
  type = 2
  editor_icon = 9
  
[cube = w_books]
  <wall.0 = w_books>
  <wall.1 = w_books>
  <wall.2 = w_books>
  <wall.3 = w_books>
  type = 1
  editor_icon = 14