Legacy:Board
The quality of the boards depends on the quality of the tree, the quality of your saw, and your carpentry skill level.
How to Acquire
Right click on a log while having either a saw or bone saw equipped and the option "Make Boards" appears. A bone saw makes only 4 boards, while a metal saw makes 6. However, it is often easier to get a high quality bonesaw than it is to get an equal quality metal saw, so sometimes a bone saw is still desirable when you want quality boards.
Your Carpentry skill acts as a softcap for board quality. The formula for board quality is as follows:
board ql =
if (Carpentry < board ql) then board ql =
Example (q10 Tree, q50 saw, 3 Carpentry)
board ql = sqrt(50 * 10)
board ql = 22.36
board ql = (22.36 + 3) / 2
board ql = 25.36 / 2
board ql = 12.68
board ql = 12!
Notes
Boards count as two branches when used as fuel.