High-quality wood is distinguished by its durability, workability, and aesthetic features. However, one of the most critical factors when evaluating wood quality is the density measurement. Density represents the mass of the wood per unit volume, typically expressed in kg/m³.
A key point here is that wood density is directly affected by the moisture content at the time of measurement.
Since wood is a hygroscopic material, it absorbs or releases moisture depending on the ambient temperature and relative humidity, which causes changes in both mass and volume. Therefore, it is essential to always state the wood's moisture content when measuring its density. In standard practices, a moisture content of 12% is commonly used as a reference point. Measurements taken at different moisture levels can lead to misleading conclusions if compared directly.
In summary:
Wood quality is related to its density.
When measuring density, the current moisture content of the wood must be specified.
Density evaluations without considering moisture content are unreliable.
A standard reference of 12% moisture content is typically used for density comparisons.