Build an Adjustable Table Saw Tenoning Jig
Cutting accurate tenons is essential for strong, well-fitting mortise and tenon joints. And while there are several ways to cut tenons on a table saw, a dedicated table saw tenoning jig makes the job easier, especially when you need to cut multiple identical joints.
This shop-built tenoning jig holds the workpiece vertically and slides along your table saw's rip fence. The result is a smooth, clean cut on the tenon cheeks, with easy adjustments to dial in a precise fit.
Best of all, the jig is made from plywood or MDF and common hardware, making it an affordable addition to your collection of table saw accessories.
Watch the video to see how the adjustable tenoning jig is built, set up, and used to cut accurate tenons and bridle joints.
An Adjustable Tenoning Jig That Fits Your Table Saw
One common problem with shop-built tenoning jigs is that they don't always maintain a consistent fit on the rip fence.
Changes in humidity can cause the jig to become too tight or too loose, making it difficult to slide smoothly and accurately.
This design solves that problem with an adjustable back fence.
A pair of slotted connections and locking knobs allow you to fine-tune the jig each time you install it. That means you can maintain a snug, smooth-sliding fit on your table saw's rip fence, even as shop conditions change.
How the Table Saw Tenoning Jig Works
The jig holds the workpiece vertically against a tall fence while a clamp keeps it securely in position.
To cut a tenon, start by cutting the shoulders on all four sides of the workpiece using the table saw and miter gauge.
Then mount the workpiece in the tenoning jig to cut the cheeks.
Because the workpiece passes vertically alongside the blade, the jig produces smooth cheek surfaces that make for a strong glue joint.
Adjusting the rip fence allows you to fine-tune the thickness of the tenon for a snug fit in the mortise.
A removable stop helps position the workpiece square to the table and supports the wood to reduce tearout.
More Than Just a Tenoning Jig
Although cutting tenons is its primary purpose, this versatile jig can handle other joinery tasks.
As demonstrated in the video, you can also use it to cut bridle joints, sometimes called open mortise and tenon joints.
The jig makes it easy to cut the tenon first, then remove material from the mating workpiece until the open mortise fits.
It's particularly useful when making multiple joints for cabinet doors, frames, and furniture projects.
Get the Adjustable Tenoning Jig Plans
You can build this useful table saw accessory from a few pieces of plywood or MDF and readily available hardware.
The step-by-step woodworking plans provide the details needed to build the jig and add it to your workshop.
GET THE COMPLETE STEP-BY-STEP PLANS → Build an Adjustable Table Saw Tenoning Jig
With its adjustable fit, secure workpiece support, and ability to cut smooth, accurate tenons, this is one table saw jig you'll find yourself reaching for again and again.
