Finger joints (sometimes called box joints) typically are made on a table saw with a dado-blade set and a jig—an auxiliary board screwed or clamped to the miter gauge. When joining parts of equal thickness, a finger joint is a good choice because it’s strong and effective.
Like a dovetail, the finger joint is visible after it’s assembled—a plus if you like to show off your handiwork (and what woodworker doesn’t?). Unlike dovetail pins, finger joint pins are straight, so it’s an easier joint to make than a dovetail, although it’s not as strong.
Make this Box Joint Jig in Minutes! | STEP IT UP
How to Make Finger Joints on the Table Saw // Box Joint
Super simple finger joint jig using a single blade on the table saw, no dado stack required!