Analysis should include
- hardwood and softwood lumber based on grading standards
- the effect of moisture content, density, and specific gravity on the mechanical properties of wood
- the anisotropic characteristics (i.e., strength based on grain direction).
Process/Skill Questions:
- What is a model truss?
- What is grain in wood? What is its importance when working with wood?
- What is the difference in the weight of green lumber vs. dry lumber?
- How is the strength of a structure tested, based on the direction of the grain?
- What is the difference between soft wood and hard wood?
- What accounts for different densities in wood?
- What is the importance of understanding the moisture content of wood?