Discussion should include using industry terminology to reflect industry safety performance standards for specific construction needs, allowing contractors to select lumber that provides the necessary structural integrity and aesthetic quality for their projects
- lumber grade factors, such as the presence of knots, splits, and other defects, as well as the strength of the wood [e.g., No. 1, No. 2, and FAS (First and Seconds) lumber]
- strength
- durability
- appearance
- types (hardwood, softwood).
Process/Skill Questions:
- Why is softwood classified into three grades?
- Why does lumber have a grade?
- How do lumber grades affect the buyer, producer, and middle vendor?