== Skill needed ==
More skill is required per level, see the table below. Only the first (ground) floor planning needs 1 skill per wall and 1 skill per tile.The roof counts as a floor
{| class="wikitable"
|| 21 || 2 ||| 60 || 7 ||| || 12
|-
|| <24 || 3 ||| || 8 ||| || 13
|-
|| || 4 ||| || 9 ||| || 14