Debate Magazine

How Much Moisture Does Wood Lose When It Dries Out?

Posted on the 29 April 2021 by Markwadsworth @Mark_Wadsworth

We once had a client who ran a facility for drying wood (to make wood chips for incinerators). I asked him how much lighter wood was after you'd let it dry out for a year, i.e. how much moisture it lost and he didn't appear to know.
So when I chopped down some leylandii branches a year ago, I weighed one chunk, marked the weight and date on it with felt-tip and tucked it at the bottom of the pile so I wouldn't burn it by mistake.
The results are in - original weight 2,107 grams; weight today 1,080 grams. In other words, it was nearly half moisture (it's still surprisingly heavy). I live and learn. I'll weigh it again in a year if it's still there.

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