By Dr. Eugene Wengert – Copyrighted material.
Used with permission by Wagner Meters
We have discussed the moisture content of wood, but have not yet indicated the definition of moisture content.
The strict definition of wood moisture content is the weight of water in a piece of wood compared to these pieces oven-dry weight. Moisture content is always expressed in percent (%), so we multiply the answer by 100.
We measure the amount of water by weighing the piece of wood, then oven-drying the piece at 215 degrees Fahrenheit for 12 to 36 hours, until the wood is dry. And then, reweighing the piece after oven-drying.
The difference between the two weights is the amount of water that was in the wood before drying. The final weight is the oven-dry weight.