SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/wood-finish-all-sides

What does finishing every face of a board, including the end grain, tend to do?

It slows moisture movement in and out of the wood.

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  1. Slows moisture movement in and out ✔
  2. Stops all wood movement
  3. Makes the board shrink more

Why: A film finish on all sides slows how fast water vapor moves in and out of the wood, which softens swings in moisture content. It does not stop wood movement, only slows it.

Huh, didn't know that: Wood species with low density tend to be more dimensionally stable than high-density species.

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Which side of a tree has the most leaves? The outside.
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References

Answer: Slows moisture movement in and out. A film finish on all sides slows how fast water vapor moves in and out of the wood, which softens swings in moisture content. It does not stop wood movement, only slows it.

  1. Wood Handbook: Wood as an Engineering Material, FPL-GTR-282 (USDA Forest Products Laboratory, 2021) research.fs.usda.gov/treesearch/62200
    A film-forming finish applied to all sides, including the end grain, will likely decrease the moisture content change
    Checked 2026-10-10.

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