Final answer:
The maximum moisture percentage in framing lumber typically should not exceed 19%, with a range of 15-19% being acceptable for most applications to avoid issues such as shrinkage and mold growth.
Step-by-step explanation:
The maximum moisture percentage allowed in framing lumber is considered to be 19% for most framing applications. However, a more specific range that is often acceptable is between 15% and 19%. When lumber is used for framing, it is important that the wood has dried sufficiently to avoid problems such as shrinkage, which can lead to structural issues, and the promotion of mold and fungus growth. It's worth noting that certain situations may require drier lumber, like interior finishing, where the moisture content could be as low as 9% to 14%.