Diploma in Wood Technology

Lesson 1 • Wood as a Biological Material

Examines the botanical origin of wood, tree growth rings, and cellular anatomy. Connects biological structure to the mechanical and physical properties explored throughout the chapter.

Lesson 2 • Physical Properties of Wood

Covers density, porosity, grain orientation, and colour variation across species. These properties form the basis for species selection in later fabrication chapters.

Lesson 3 • Common Wood Species and Uses

Surveys commercially important softwood and hardwood species and their typical applications. Provides species literacy needed for material selection in applied chapters.

Lesson 1 • Processing and Milling Defects

Covers defects introduced during sawing, drying, and planing, such as snipe, tearout, and case hardening. Students distinguish natural from processing defects for accurate grading.

Lesson 2 • Natural Wood Defects

Identifies knots, checks, splits, shakes, and pitch pockets and explains their structural impact. Recognising defects enables safe and efficient material use in fabrication.

Lesson 3 • Principles of Lumber Grading

Introduces grading systems for softwood and hardwood lumber, including grade marks and board-foot calculation. Grading knowledge underpins material procurement in all subsequent chapters.

Lesson 1 • Monitoring and Quality Control

Teaches use of pin and pinless moisture meters, core sampling, and drying defect diagnosis. Accurate monitoring ensures lumber meets specification before entering production.

Lesson 2 • Why Drying Matters

Explains the consequences of using green or improperly dried lumber, including warping, checking, and joint failure. Motivates the technical drying methods introduced in subsequent sections.

Lesson 3 • Kiln Drying Fundamentals

Introduces conventional, dehumidification, and vacuum kilns, along with schedule development. Kiln drying produces consistent moisture content required for precision woodworking.

Lesson 1 • Measuring and Marking Tools

Introduces rules, squares, marking gauges, and layout tools for precise stock preparation. Accurate layout is the prerequisite for all cutting and joinery operations.

Lesson 2 • Workshop Safety Fundamentals

Covers personal protective equipment, fire prevention, dust management, and emergency procedures. Safety protocols established here apply to every subsequent hands-on chapter.

Lesson 3 • Cutting and Shaping Hand Tools

Covers hand saws, chisels, planes, and rasps, including correct grip, stance, and cutting technique. Mastery of these tools supports joinery and carving work in later chapters.

Lesson 1 • Stationary Sawing Machines

Covers table saw, band saw, and mitre saw setup, blade selection, and safe cutting procedures. These machines are the primary stock-dimensioning tools used throughout the course.

Lesson 2 • Portable Power Tool Proficiency

Addresses routers, circular saws, jigsaws, and random-orbit sanders for site and bench use. Portable tools extend machine capabilities and are used in finishing and assembly stages.

Lesson 3 • Jointing, Planing, and Thicknessing

Explains jointer and thickness planer operation for producing flat, square, and parallel faces. Properly milled stock is essential for accurate joinery in the following chapter.

Lesson 4 • Machine Maintenance and Calibration

Teaches blade changes, fence alignment, belt tension, and lubrication schedules for shop machinery. Calibrated machines produce consistent results and reduce safety incidents.

Lesson 1 • Dovetail and Box Joints

Teaches hand-cut and router-cut dovetails and box joints for drawer and box construction. These joints combine mechanical strength with visual craftsmanship valued in fine furniture.

Lesson 2 • Glued Panel and Edge Joints

Explains edge-gluing, biscuit, and spline joints for producing wide panels from narrow stock. Panel construction is a prerequisite for cabinet and furniture projects in later chapters.

Lesson 3 • Frame-and-Panel Construction

Integrates grooves, haunched tenons, and floating panels into door and cabinet frame assemblies. Students apply multiple joint types learned earlier in a single structural system.

Lesson 4 • Mortise-and-Tenon Joinery

Covers layout, chopping, and fitting of through, blind, and wedged mortise-and-tenon joints. This joint is the structural backbone of chairs, tables, and frame-and-panel assemblies.

Lesson 1 • Film-Forming Finishes

Covers lacquer, polyurethane, varnish, and conversion coatings, including spray and brush application. Film finishes provide the highest durability for furniture and cabinetry surfaces.

Lesson 2 • Stains and Dyes

Explains oil-based, water-based, and gel stains alongside dye chemistry and application methods. Colour control skills enable consistent matching across production batches and repairs.

Lesson 3 • Surface Preparation Techniques

Covers sanding sequences, scraping, and grain raising to achieve a defect-free substrate. Proper preparation is the single greatest factor in finish quality and adhesion.

Lesson 4 • Penetrating and Natural Finishes

Addresses oils, waxes, and shellac as low-VOC alternatives that enhance natural wood character. These finishes suit food-contact surfaces and traditional furniture restoration.

Lesson 1 • Table and Chair Structural Design

Addresses apron-and-leg assemblies, stretcher systems, and seat construction for load-bearing furniture. Students apply mortise-and-tenon and dowel joinery from earlier chapters.

Lesson 2 • Hardware Installation and Final Assembly

Covers knobs, pulls, hinges, and soft-close mechanisms, plus final glue-up and squaring procedures. Proper hardware installation completes the functional and aesthetic quality of the piece.

Lesson 3 • Door and Drawer Construction

Covers slab, frame-and-panel, and overlay door types alongside dovetailed and undermount drawer systems. Doors and drawers are the most visible and functional elements of cabinetry.

Lesson 4 • Reading and Creating Shop Drawings

Covers orthographic views, section details, and cut lists derived from design intent. Accurate drawings prevent material waste and assembly errors in production.