The Anatomy of Wood
Hardwoods vs Softwoods
Hardwoods come from deciduous angiosperms — oak, walnut, cherry, maple, ash. Softwoods come from coniferous gymnosperms — pine, fir, cedar, spruce. Hardness correlates loosely but not perfectly: balsa is technically a hardwood; yew is technically a softwood. For furniture: hardwoods resist wear, hold detail, and finish beautifully. For carving: basswood and butternut (both hardwoods) are soft and easy to work with hand tools.
Reading Grain Direction
Cutting with the grain lifts and compresses wood fibres smoothly. Cutting against the grain tears and splinters them — tearout. To read grain direction on a board face: look along the surface and find the direction fibres angle upward. Always cut in the direction they angle downward into the surface. On curved or figured wood, the direction may change partway along the board.
Wood Movement
Wood expands and contracts across the grain with seasonal humidity changes. Along the grain, movement is negligible (under 0.1%). A 300mm wide oak panel can move 5–8mm seasonally. Trapping this movement — gluing a solid panel into a rigid frame — causes splitting. Every furniture joint must account for wood movement. This is the single most critical lesson in woodworking: wood is not static.
Shop Safety & Protocol
Personal Protective Equipment
Hearing: any sustained exposure above 85dB — table saws, routers, sanders — causes permanent hearing loss. Wear plugs or earmuffs. Always. Eyes: non-optional for all power tool operation. Respiratory: wood dust, especially hardwood dust, is a classified carcinogen. N95 minimum for sanding; P100 half-face respirator for routing and heavy sanding.
Zones of Danger
Kickback: a table saw can launch wood back at 250+ km/h if the cut pinches the blade. Never stand directly behind the blade. Always use the riving knife and blade guard. Router: a bit spinning at 20,000 RPM has zero forgiveness — always cut in the correct feed direction (against bit rotation). Safe hand distance: never place a hand closer than 150mm to any spinning cutter.
Measuring, Marking & Layout
The Layout Arsenal
Marking knife: always superior to a pencil for joinery lines. A knife severs fibres cleanly; a pencil line is wide and inaccurate. Combination square: checking 90° and 45°, setting marking gauges, scribing parallel lines. Marking gauge: scribing a line parallel to a face — the foundation of mortise and tenon layout. Bevel gauge: capturing and transferring angles from dovetails, roof pitches, or chair legs.
The Golden Rule
"Measure twice, cut once" understates it. Better: wherever possible, reference parts directly against each other rather than measuring at all. Hold the tenon stock against the mortise and scribe directly — no measurement, no accumulated error. Use story sticks (thin pieces of wood marked with all key dimensions) instead of measuring every piece independently.
Hand Tools & the Art of Sharpening
Sharpening Systems
A dull tool is more dangerous than a sharp one — it requires force, which causes slipping. A sharp tool cuts with gentle, controlled pressure. Progression: diamond plate (flatten waterstones and establish bevels fast) → 1000-grit waterstone (set the primary bevel) → 3000–6000-grit (refine the edge) → leather strop loaded with honing compound (align and polish to a mirror finish). Test: a properly sharp chisel shaves arm hair effortlessly.
The Chisel & Hand Plane
A chisel has one job: pare wood cleanly to a scribed line. It must be sharp enough to shave, flat on the back, and held at the correct bevel angle. The hand plane smooths surfaces, fits joints, chamfers edges, and produces surfaces sanding cannot match. Tuning a new plane: flatten the sole on diamond plate or sandpaper, lap the back of the iron flat, sharpen, and set the cap iron tight to the cutting edge.
Western vs Japanese Saws
Western saws cut on the push stroke — robust and easy to use with guides. Japanese saws cut on the pull stroke — thinner kerf, more precise, and leave a smoother cut. Ryoba: Japanese double-sided saw with rip teeth on one side and crosscut on the other. For most joinery, a Japanese pull saw produces better results with less effort.
The Joiner's Mallet & Marking Gauge
Build a heavy hardwood mallet using only hand saws, chisels, and wood glue — no metal fasteners. Then create a custom wooden marking gauge: a fence, a beam, and a wedge-locked knife or pin.
Success criteria: Mallet joints are tight, square, and gap-free. Handle is round-mortised into the head. Marking gauge scribes a clean, consistent line parallel to a face at any setting. Both pieces function like tools, not prototypes.
Phase 1 Practice Exercises
12 exercises to build skill through direct application.
Species Test Panel
Plane, chisel, and sand samples of 5 different species. Compare hardness, grain, and finish.
- Species recognition
- Hardness comparison
- Workability assessment
Grain Direction Planing
Plane a board in both directions. Feel and observe the difference between with-grain and against.
- Grain direction reading
- Tearout identification
- Planing discipline
Wood Movement Measurement
Mark a datum across a 300mm wide panel. Measure monthly. Record movement.
- Seasonal awareness
- Movement magnitude
- Furniture design implications
Chisel Sharpening
Sharpen 3 chisels to shaving-sharp using the full waterstone progression.
- Whetstone technique
- Flat back lapping
- Edge quality testing
Plane Tuning
Tune a No.4 bench plane: flatten sole, lap back of iron, sharpen, set chip-breaker.
- Plane anatomy
- Sole flattening
- Cap iron gap setting
Marking Gauge Lines
Scribe 20 parallel mortise layout lines with a marking gauge. All must be on the same depth.
- Gauge setting
- Consistent pressure
- Clean knife lines
Knife vs Pencil Layout
Lay out the same joint with a knife and with a pencil. Compare accuracy.
- Knife line precision
- Pencil line width comparison
- Layout discipline
Japanese Saw Practice
Make 20 cuts to a knife line. Assess accuracy and kerf quality.
- Pull-saw technique
- On-the-line cutting
- Kerf quality
Safety Audit
Photograph workspace. Identify every safety hazard. Fix each before continuing.
- Hazard identification
- Safety protocol setup
- PPE verification
Story Stick Creation
Create a story stick for a simple box project. Mark all dimensions without a tape measure.
- Story stick method
- Relative dimensioning
- Accumulated error prevention
Arm Hair Test Daily
Test sharpness of every tool each session with the arm hair test. Record daily.
- Sharpness awareness
- Maintenance reflex
- Tool care habit
Hand Tool Only Build
Build a simple shelf or step stool using only hand tools — no power tools at all.
- Hand tool confidence
- Complete project planning
- Self-sufficiency