Final answer:
KD-19 wood is dried to a moisture content of 19% or less.
Step-by-step explanation:
KD-19 wood is typically dried to a moisture content of 19% or less. The term 'KD' stands for kiln-dried, which is a process of reducing the moisture content of wood to make it more stable and suitable for construction. In the case of KD-19 wood, it is dried to a moisture content of 19% or lower. This ensures that the wood is less prone to shrinking, warping, or cracking.