Box joints (sometimes called finger joints) are one of my favorite methods of joinery. They look absolutely beautiful, are extremely strong, and allow you to cut your boards to length without calculating for the size of the joint. For example if you wanted your final dimensions of your box to be 12″ long and 9″ wide you would cross cut your boards to 12″ and 9″. Box joints can be made with a router or table saw; in this example we’ll make a dead-simple table saw jig and build a simple wooden box. You ready? Here we go!