Types of Wood JointsTypes of Wood Joints

Prepared by: Lim, Mary Wynne Ann S.BSED – TLE3W1

Dowel JointDowel Joint

Dowels come in different sizes ¼”, 3/8”, ½” , 5/8” etc.

These joints are hidden and add strength to the joint.

Dowel holes are drill and glued and clamped together.

DadoDado

• Dado's are typically used in making book shelves, they support the shelf without the benefit of any additional fasteners, any glue or hardware simply holds the shelf in place.

• Dados may be made with a dado blade on a table saw

Rabbet JointRabbet Joint

This type of joint is made by using the dado blade.

Each side of wood is cut to a specific length, then glued or brad nailed to make a stronger joint.

Lap JointLap Joint

A lap joint is when two piece are cut on a dado and glued or nail together to create a stronger joint.

Dovetail JointsDovetail Joints

Most commonly used to attach drawer sides to drawer fronts, dovetails joints almost always indicate quality furniture.

Typically cut using a manufactured jig to cut these. Can be done by hand.

Mortise and TenonMortise and Tenon

• The mortise and tenon joint is one of the strongest wood joints.

• Mortise and tenon joint is normally formed by cutting a square tongue (the tenon) on the end of one piece of wood and an equal size square hole or slot (the mortise) in another.

Mitre with Wood SplineMitre with Wood SplineMitered corners make the joint disappear. They have a clean look, and can be strengthened with splines. Splines can be either hidden inside the joint or cut on the outside. I

Tongue and GrooveTongue and GrooveTongue and groove or T&G is a method of

fitting similar objects together, edge to edge, used mainly with wood: flooring, parquetry, panelling, and similar constructions. Tongue and groove joints allow two flat pieces to be joined strongly together to make a single flat surface.

The effect of wood shrinkage is concealed when the joint is beaded or otherwise moulded