Woodworking Joints

1. Woodworking Joints

2. Joinery • Joinery is the part of Woodworking that involves joining pieces of wood together • Some require fasteners, adhesives

3. Types of Wood JointsButt Joint • The simple butt joint is most commonly used. • This joint is formed by nailing or screwing the end of one piece of wood to the end of the other. • While this is simple, fast and effective, the butt joint leaves the heads of the screws or nails exposed. • Used in cabinet making or Construction framing

4. Types of Wood Joints Dowel Joint • The dowel joint is basically the same as the butt joint except dowels are used to hold the two pieces of wood together instead of screws and nails • Construct blind dowel joints by drilling the holes only partway into each piece of wood. Then drive the dowels into these holes and glue them into position. • The dowels are not always visible.

5. Types of Wood Joints Lap Joint • The Lap Joint is made by sawing halfway through each piece of wood • The Lap Joint provides a great deal of strength, but the heads of the nails, screws are still exposed. • Used in Cabinet making

6. Types of Wood Joints Mortise & Tenon • This Wood Joint is simple and strong. Due to this, it is commonly used with other materials besides wood. • To form this joint, saw a slot into one piece of wood. The end of the other piece of wood is then notched out to fit the slot in the first piece. • The wood joint is then glued together. • Used in furniture making

7. Types of Wood Joints Mitre Joint • The conventional mitre joint is widely used for making corners in various types of woodwork • This Wood Joint is a finish joint and not a strong joint. Therefore it is not recommended where the joint is subject to excessive weight or unusual strain.

8. Types of Wood Joints Rabbet Joint • A simple wood joint, in which the ends of boards are joined at right angles by removing a portion of one board’s thickness to accommodate another board. • In addition to increasing the glue surface, the rabbet also provides support and alignment for the two pieces. • Used for small scale structural applications: small boxes, wall cabinets, etc.

9. Types of Wood Joints Dado Joint • To make a Dado Joint, cut a slot into one piece of wood to match the end of the other. • The dado joint is much stronger than the butt joint and creates a more professional appearance. • It can be used horizontally to support shelves on a bookcase or vertically to hold partitions.

10. Types of Wood Joints Dovetail Joint • This wood joint is noted for its resistance to being pulled apart (tensile strength). • The dovetail joint is commonly used to join the sides of a drawer to the front. • A series of pins cut into one board and tails into the second board form the joint. • Once glued, a wooden dovetail joint requires no mechanical fasteners.

11. Summary of Wood Joints • Name:Butt Joint • Strength: Simple/Fast • Weakness: Fasteners are shown • Name: Dowel Joint • Strength: Fasteners can be hidden • Weakness: Setup time to create • Name: Lap Joint • Strength: Strength of Joint • Weakness: Fasteners are shown • Name: Rabbet Joint • Strength: Simple/Provides support • Weakness: End grain exposed • Name: Mitre Joint • Strength: Decorative Joint • Weakness: No strength to joint Wood Joints • Name: Mortise & Tenon • Strength: Strength/Appearance • Weakness: Setup time to create • Name: Dado Joint • Strength: Strength/Professional • Weakness: Setup time to create • Name: Dovetail Joint • Strength: Strength • Weakness: Setup time to create

12. WOOD Joints Careful planning, measuring and cutting result in attractive functional wood joints.