Moisture Mapping A Guide to Understanding Wood Moisture Content and Woodworking

When working with wood, it is important to understand moisture content. Moisture content is the amount of water vapor present in wood, and it can affect the wood’s strength, durability, and workability. Moisture mapping is a process of measuring the moisture content of wood so that you can make informed decisions about how to use and work with it.

Wood Moisture Content

The moisture content of wood is expressed as a percentage of the wood’s weight. The moisture content of wood can vary depending on the species of wood, the age of the wood, and the environment in which the wood is stored.

* **Green wood** has a moisture content of more than 20%.
* **Air-dried wood** has a moisture content of between 12% and 15%.
* **Kiln-dried wood** has a moisture content of less than 8%.

How Dry Should Wood Be Before Turning?

The ideal moisture content for wood before turning is between 7% and 10%. This moisture content is low enough to prevent the wood from warping or cracking, but it is still high enough to allow the wood to be turned smoothly.

If the wood is too wet, it can cause the lathe to chatter and the wood to tear out. If the wood is too dry, it can become brittle and difficult to turn.

You can measure the moisture content of wood using a moisture meter. Moisture meters are available at most hardware stores.

Once you have measured the moisture content of the wood, you can adjust it as needed. If the wood is too wet, you can air-dry it or kiln-dry it. If the wood is too dry, you can add moisture to it using a humidifier or a spray bottle.

By following these tips, you can ensure that your wood is the right moisture content for turning. This will help you to create beautiful and durable turned projects.