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Wood structure and properties for sawmill people
Wood species · Beginner
A beginner course on how wood is built and why it behaves as it does: rings, sapwood and heartwood, softwood and hardwood cells, density and strength, anisotropy and grain, juvenile and reaction wood, knots, and natural durability, with what each means at the saw and in the kiln.
This course was drafted with AI assistance and has not yet been reviewed by an expert. Check important figures against a standard or your contract.
- 1. Reading the cross-section: rings, sapwood and heartwood 12 min
- 2. Cells and cell walls: tracheids, vessels, fibres and rays 13 min
- 3. Density and strength: what the number tells you 14 min
- 4. Anisotropy and grain: why direction decides everything 14 min
- 5. Juvenile wood, growth rate and variability 13 min
- 6. Reaction wood, knots and growth stress 13 min
- 7. Natural durability, species at a glance and limits of this course 13 min
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