DIY Network

How To Cut Mortise-and-Tenon Joints

Follow these tips for cutting mortise-and-tenon joints using a router.

More in Home Improvement

tips for cutting mortise and tenon joints
  • Time

    Under Half Day

  • Price Range

    $100 - $250

  • Difficulty

    Hard

Highlights:

Step 1: Mark and Cut the Mortise

Find the location of the mortise on a piece of 2 x 4. Make the marks with an edge guide or use a jig to hold the sides of the 2 x 4. The jig limits the movement of the router during the cut. Mortise-and-tenon joints are usually cut on a table saw, but they can be made using a router as well. The joints are rounded when using a router, but they are just as strong as squared-off mortises and tenons. Cut the mortise with a plunge router. Make one pass about halfway through the mortise, then plunge all the way on a second pass. Use the same principles for whatever wood is used in any project; just adjust the size of the router bit.

Step 2: Cut and Sand the Tenons

The router doesn’t have enough support to cut one tenon at a time. So line up several boards, clamp them together, and cut several tenons at once. Sand the edges of the boards.

Step 3: Cut Shoulders for the Tenon

To cut the shoulders for the tenon, place a board flat on the work table and clamp it down. Run the router across the board. Turn the board over, clamp it down again, and cut the other shoulder. Sand again, if necessary. Round off the corners of the tenon with a utility knife.

Was this project helpful?

Don't forget: Read comments and leave your own

Advertisement

Projects

COMMENT ON THIS PROJECT

    

Sign in

All fields are required.

E-mail Address:

Password:

Remember me on this computer

Signing in

Please enter your email address and we will send your password

E-mail Address

Your password has been sent and should arrive in your mailbox very soon.

Not a member?

Sign up with DIY Network to share tips with other do-it-yourselfers and comment and ask questions on projects.

It's free and easy.