|+Required skill by length (tiles) and material
|-
!Type\/Length!5tiles
!6
!7
!37
!38
!Skill used
|-
!Wood
|97
|99
|Carpentry
|-
!Rope
|97
|99
|Ropemaking
|-
!Brick
|97
|99
|Masonry
|-
!Marble
|97
|99
|Masonry
|-
!Arched Brick
|98
|99
|Masonry
|-
!Arched Marble
|98
|99
|Masonry
|-
|}
|Rope
|10
|Rope MakingRopemaking
|-
|Brick