What unit is used to measure the moisture content in wood?

Moisture content in wood is expressed as a percentage (%), which indicates the amount of water present in the wood relative to its dry weight. This measurement is crucial in carpentry and woodworking because the moisture content affects the wood's strength, stability, and workability.

For example, a moisture content of 12% means that for every 100 grams of dry wood, there are 12 grams of water present. By using percentage, woodworkers can easily assess whether the wood is in an appropriate condition for use or if it needs to be dried further to avoid problems like warping, splitting, or mold growth.

Other units like grams, millimeters, or inches are not suitable for measuring moisture content in wood, as they pertain to weight and linear dimensions rather than the proportion of moisture in a material.