Carpenters constantly improve their craft with the help of shamans. Upgrading this Knowledge increases the maximum amount of Timber produced in one batch in the Carpenters' Yard.
| Level | Ale | Steel | Plates | Thoriars | Scrolls | Time | Requirements | Maximum of Timber Received | Influence | |
| 1 | 90 | 150 | 150 | 215 | 75 | 1w 1d 00h 00m 00s | 02nd | 5.9M | ||
| 2 | 125 | 200 | 200 | 290 | 80 | 1w 1d 12h 00m 00s | 47 | 6M | ||
| 3 | 170 | 280 | 280 | 405 | 85 | 1w 2d 12h 00m 00s | 86 | 6.05M | ||
| 4 | 240 | 395 | 395 | 575 | 90 | 1w 5d 00h 00m 00s | 1st, | >36 | 6.1M | | |
| 5 | 350 | 575 | 575 | 835 | 95 | 2w 1d 12h 00m 00s | 1st, | >89 | 6.15M | | |
| 6 | 520 | 855 | 855 | 1.25K | 100 | 2w 6d 12h 00m 00s | 2nd, | >64 | 6.2M | | |
| 7 | 785 | 1.3K | 1.3K | 1.9K | 105 | 2w 6d 12h 00m 00s | 3rd, | >68 | 6.3M | | |
| 8 | 1.25K | 2.05K | 2.05K | 2.95K | 110 | 3w 6d 00h 00m 00s | 5, | >14 | 6.35M | | |
| 9 | 1.95K | 3.25K | 3.25K | 4.7K | 115 | 5w 1d 12h 00m 00s | 7, | >17 | 6.4M | | |
| 10 | 3.2K | 5.25K | 5.25K | 7.65K | 120 | 7w 2d 00h 00m 00s | 10 | 6.45M | ||
| 8.68K | 14.31K | 14.31K | 20.77K | 975 | 29w 6d 00h 00m 00s | 86 | 89 | 61.9M |
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