Newly‐cut logs can have a moisture content (MC) of 80% or more, depending on species.
Since wood shrinks, and can also split, twist or otherwise change shape as it dries, most
wood is dried before being used. Air drying, or 'seasoning,' is the most common method
used for cord wood. In most parts of the United States, the minimum moisture content
that can be generally obtained in air drying is about 12 to 15 percent. Most air‐dried
material is usually closer to 20 percent moisture content when used
To test your firewood, simply push the pins into the wood and wait for a
reading. Remember, don't just stick the meter into the ends of your firewood. To get
the most accurate reading, split the wood and test the center. The center of the log will
contain the most moisture.
How Far Should I Drive Non‐Insulated Pins into Wood?
To full depth if possible. However, at moisture levels below 10%, it is usually sufficient to
make good, positive contact with the wood. At higher levels of moisture and especially if
you have a steep gradient, full penetration is a must.