Making Shiplap Siding Router Bits

Another option for making shiplap yourself is to use a shiplap router bit set.

Making shiplap siding router bits.

The shiplap is formed by cutting a rabbet into opposite faces of the top and bottom of each plank. So for a 3 4 thick board that would mean setting the blade height to 3 8 as well as the rip fence to 3 8. That way when you install the boards you re left with a 1 4 in. Usually a depth of half the thickness of the board is best.

You have to set both the height of your blade and the rip fence to make the 2 cuts necessary for shiplap. Wide and the other at 3 4 in. I m afraid my router won t like to run the horizontal panel bit as the motor is only 2 1 4 hp bosch 1617evs. I set up the router table with the curved bevel i use for cabinet doors.

Roll the board onto its back and repeat. Good catch that the tablesaw cove jig will only remove the height of the carbide or less per pass. B uy a shiplap router bit set here. It s a spendy bit and with a 1 2 shank you need a table to make this cut.

A piloted rabbet bit and a router arc all you need to make them. To make a more traditional shiplap joint simply cut one rabbet at 1 2 in. The utility of the shiplap as a precision fitted joint. If you don t want this look you can just use a straight bit as shown below.

L ay the board across sawhorses and run the router along one edge cutting the rabbet half the thickness or a little more of the stock.