Tongue and Groove Joinery

When joining two matched boards into one, a tongue and groove joint is much stronger than a simple butt joint. The tongue and groove joint can be easily created using a router with a matched set of router bits, or on a table saw using a stacked dado blade set.

In the following steps, learn how to create perfectly matched tongue and groove joints using your table saw.

To begin, cut all of the boards you want to use for your tongue and groove assembly to a length of at least one inch longer than the desired finished length using a circular saw or compound miter saw.