Woodsmith last issue Woodsmith current issue

Keep up to date with


Sign Up for Our FREE Newsletter

Give a Gift FREE Issue
URL:
https://www.woodsmith.com/article/cut-a-mortise-on-the-table-saw/
Share Page:

Cut a Mortise on the Table Saw

By: Phil Huber
Making mortises on your table saw is fast, easy, and accurate with the right approach.

Mortise and tenon joinery is my go-to joint for creating fine furniture and rock-solid shop projects like this Trestle Sawhorse. About the only downside to using this versatile joint is the time it takes to cut all the mortises for the project by hand. Well, for many projects, there’s an easier way to do this — the table saw. As you’re about to see, there are a few tricks to doing this quickly and easily. But don’t worry, you’ll still end up with a great-looking joint that will stand up to the test of time.

In the past, I’d drill and chop out the waste to create a through mortise. But there are a few downsides to doing that. It takes a lot of time. And keeping the sides of the mortise perfectly flat and square can be a challenge. Using a table saw solves all these problems. To create the mortise, you make the leg out of two separate pieces. Then, instead of making the mortise after the leg is glued up, you cut dadoes on the inside face of both halves of the leg first (detail ‘a’). This way, you end up with perfectly sized mortises once the two parts are glued together. And by carefully selecting the two parts of the leg, the joint line is almost invisible.

When I make a leg this way, I start by cutting two blanks to exact length and thickness, but I make them extra wide. This way, I can plane the legs down to finished width after they’re glued up. Once the blanks are sized, you can go ahead and cut the dadoes that will form the mortises. I use the rip fence as a stop as I work to ensure that each pair of dadoes lines up once the blanks are glued together. And be sure to make all the cuts at one rip fence setting before moving on.

When it comes to gluing up the two halves of the leg, the trick is keeping the dadoes aligned as you clamp the pieces together. To do this, I use simple “keys.” All you need to do is cut some scrap blocks (I like to use MDF) to fit snugly in the mortises in the leg. Once the glue dries, all that’s left to do is plane each leg down to its final width. The end result is a perfect through mortise ready to accept a tenon.

Published: Jan., 19 2017
Topics: None
Share Page:

Product Recommendations

Here are some supplies and tools we find essential in our everyday work around the shop. We may receive a commission from sales referred by our links; however, we have carefully selected these products for their usefulness and quality.

WSM eTips Landing Page Ad_Sub Promo

WSM_zone58_PopWoodSubPromo_300x250

Newsletter Articles

Reviews

Best Socket Sets For Day-To-Day Needs

Create Strong And Robust Interlocking Dovetail Joints With The Best Dovetail Jigs

Best Carpenters Tool Belts For Easy Storage Of Essential Equipment

The Best Dewalt Wrenches To Topple Every Project

Add the Best Vise Jaws to Your Workshop for Added Workpiece Stability

The Best Sawzalls; Cut Through Anything. Anywhere

Best Dewalt Tool Kits For DIY Home Project

Make Stapling A Breeze With The Best Pneumatic Staple Gun

Add The Best Dewalt Impact Drivers To Your Tool Kit

Effortlessly Thread Neat Screws With The Best Die Sets

Measure with Accuracy: Best Angle Finder

No More Cracks: Best Wood Filler

Enhance Your Woodworking Projects With The Best Plate Joiners Of 2021

Make Your Sanding Jobs Easier With The Best Spindle Sanders Of 2021

Best Scroll Saw For The Finest Cutting Results

See Through Walls With The Best Stud Finders

The Best DeWalt Drills and More For Your DIY Needs

The Best Drill Press Of 2021

The Best Wood Planer To Complete Your Woodshop

Make Every Cut Ideal: Best Router Table Fence

The Best Router Base For Furniture Manufacturing

The Best Allen Wrench to Get the Job Done!

Make Your Projects Effortless With The Best Ball Peen Hammers

Brushless Drills: An Incredible Addition to your Toolbox

Keep Your Cuts Clean With The Best Radial Arm Saw

Best Tap Sets For Your Workshop

The Smoothest Experience With The Best Random Orbital Sander

Carve and Create With The Best CNC Routers

Upgrade Your Workshop With The Best Benchtop Jointer

Deal with Logs with the Best Wood Chipper

Blast the Tunes with the Best Woodshop Radio

Best Compact Bandsaws For Easy Cutting

Best Finishing Nailers For Durability

Best Mini Air Compressors To Buy

Our Team’s Review of the Best Propane Torches

Best Wood Carving Sets For Hobbyists

Best Wood Lathe For Beginner

Use The Best Edge Sanders To Smoothen Any Wooden Surface

Seamlessly Cut And Chop Wood With The Best Hatchets

Woodturning Essentials: The Best Roughing Gouges

Best Shop Fans: Top 7 High-Velocity Heavy-Duty Fans for Garages, Worksites and Workshops

Preserve Your Valuables With The Best Linseed Oil

Best Rubber Mallets For Woodworking

Best Wrench Sets That Makes Work Easy

The Best Wrench Racks To Organize Your Tools

The 7 Best Calipers For Accurate Measurements

Best Marking Gauges For Professional And DIY Woodworkers

Best Folding Stools To Fit into Compact Spaces

Get The Perfect Flush Cuts Every time With The Best Edge Banding Trimmers

Best Deck Screws For Pressure Treated Woods To Make A Perfect Deck

Best Miter Saw Stands To Mount Your Cutting Tools On The Go

Increase Your Sanding Efficiency With Zero Effort Using The Best File Belt Sanders

Best Table Saw Fence 2021 for Smooth Cuts and Shapes

Sharpen And Shape With The Best Bench Grinders

Best Metal Clamps for Your Craftsmen Needs

Best Cordless Impact Wrenches for All of Your Mechanical Needs

Best Biscuit Joiners to Help Easing Your Woodwork

Best Estwing Hammers For Your DIY Needs

Use The Best Wood Moisture Meters To Separate Healthy And Damaged Wood Pieces

The Best Rail And Stile Router Bits: The Staple Of Hassle-Free Woodworking

Best Adjustable Wrench For Hassle-Free Work

Best CNC Router Bits For A Hassle-Free Woodworking Project

Achieve Precision with the Best Glass Cutter

Keep Things Sharp With The Best Sharpening Stones

The Best Sandblaster To Get Your Job Started Strong

Best Forstner Bits To Add To Your Woodworking Tool Kit

The Best Jointer For Every Type Of Woodworking

The Best Track Saw of 2021

Our Team’s Review Of The Best Spring Clamps

Best Rasp Files – A Versatile Woodcarving Solution

The Best Veneer Edge Banding: A Perfect Finish To Your Furniture

Catch The Dust Before It Catches You With The Best Dust Hoods

Best Depth-Gauges: A Staple For Woodworking Enthusiasts

Construct Your Projects On The Best Workbenches Available

Smooth Out Your Work Using the Best Sanding Discs

Best Caster Wheels 2021

The Best Furniture Levelers: Bid Farewell to your Furniture Woes

7 Best Flush Cut Saw That Could Change the Wood Cutting Game

Level-Up Your Portals With the Best Door Hinges

Organize Your Lifestyle With the Best Pegboard Hooks

The Best Magnetic Toolbars For Easy Storage And Organization

The Best Vise: A Staple In Every Workshop

Our Team’s Review of the Best Rolling Tool Chest

Organize With Ease: Best Pegboards

Make Better Cuts With The Best Table Saw Push Block

Cut And Shape With Ease: Best Router Table

The Best Plywood Jigs For Every Need

Reviewing The Best Taper Jigs This Year

Hit The Nail On The Head With The Best Hammers

Make Every Cut: Best Angle Grinder

The Best Wood Stain For Every Project

The Best Overhead Storage Rack For Convenient, Safe Storage

The Best Double Sided Tapes That Won’t Damage Surfaces

The Best Saw Dust Catchers For Shop Safety

Toolbox Essentials: The Best Sandpaper

Start Your Next Carving Project With The Best Scorp

Seal, Coat, and Craft With the Best Epoxy

Finding the Best Circular Saw in 2021

Reviewing the Best Drill Bits of 2021

Best Ratchet Wrenches for Quick and Easy Repairs

The Best Table Saw For The Everyday Handyman

Reviewing the Best Router Leveling Jigs

Tackle Screws Effectively With The Best Screwdriver Sets

Best Shop Vac For Those Heavy-Duty Cleaning Tasks

Best Tape Measures For Professionals and DIYers

The Best Handscrew Clamp For Gluing, Painting, and Building

The Best Wood Mallet For Your Next Carpentry Project

Revamp Your Outdoor Space With The Best Deck Stain

Smooth Out Edges With The Best Spokeshaves

The Best Carpentry Square For Precise Measuring

Protect Your Outdoor Entertainment Space With The Best Firepit Cover

Get The Right Measurements With The Best Framing Square

Best Wood Chisels For Impactful Wood Crafting

The Best Bird House Kits For First-Time Builders

The Best Wood Glue To Complete Your DIY Projects

Our Top Picks Of The Best Wood Burning Kits This Year

Reviewing The Best Moving Dollies This Year

Best Wooden Box Puzzles For Challenging Fun

Get Organized With The Best Racks For Firewood

The Best Landscape Edgers To Beautify Your Space

Endless Fun With The Best Wooden Puzzles

Our Top Picks Of The Best Blueprints This Year

Reviewing The Best Benches This Year

Never Lose Out On Warmth: Best Water Heaters

Make Cutting Easier With The Best Band Saws

Easy to Use and Efficient: Best Sanding Blocks Reviewed

Reviewing The Best Axes Right Now

Cordless Precision Possible: Best Compact Routers

Work Smarter with the Best Canvas Aprons

Convenience And Reliability: Best Tankless Water Heater

Create Clean Slices using the Best Low Angle Block Planes

Craft Wood Effortlessly with the Best Carving Chisels

Make Storage Seamless With The Best Extension Cord Reel

Review: The Best Cordless Drills

Don’t Let Handtools Slow You Down: Best Drills

Get Your Home Looking Sharp With The Best Wall Paints

The Best Table Saw Stand For Easy And Clean Cuts

Keep Your Tools Running Smoothly With The Best Lubricant Oil

Review Of The Best Hacksaws Right Now

Strong and Soft: Best Shop Towels

Stay Sharp With The Best Electric Pole Saws

Get Up-Top With the Best Step Ladders

The Best Deep Toolbox For Maximizing Your Space And Time

The Best Porch Swing Will Sweep You Off Your Feet

Tackle Any Project with the Best Chop Saws

Review of the Best Portable Generators

Secure Woodworking with the Best Bench Vise

Precise and Durable: Best Measuring Tape

Enhance Your Cuts Using The Best Miter Saw

Keep Your Work Organized: Best Toolboxes

The Best Electric Log Splitter For Great Cuts