The tall stone wall is repairable and improvable with [[stone brick]]s.
=== Skill required =Required ==
To calculate the [[maximum slope]] you can build on, based on your [[masonry]] skill, use the following formula (submitted by ketza):
!Skill !! Maximum Slope !! !!Skill !!Maximum Slope !! !!Skill !!Maximum Slope
|-
|1 6 || 1317|| 25 || 16 25 || 22 59 || || 49 || 31|-|2 || 14|| || 19 || 23 || || 54 || 3233
|-
|3 8 || 1518|| 29 || 22 26 || 24 64 || || 59 || 3334
|-
|4 9 || 1619|| 33 || 25 27 || 25 70 || || 64 || 3435
|-
|6 12 || 1720|| 36 || 29 28 || 26 76 || || 70 || 3536
|-
|8 14 || 1821|| 41 || 33 29 || 27 81 || || 76 || 3637
|-
|9 16 || 1922|| 45 || 36 30 || 28 88 || || 81 || 3738
|-
|12 19 || 2023|| 49 || 41 31 || 29 94 || || 88 || 3839
|-
|14 22 || 2124|| 54 || 45 32 || 30 || || 94 || 39
|}