Dentil Molding Jig

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Project by Thos. Angle posted 2026 days ago 9472 views 7 times favorited 12 comments Add to Favorites Watch

I needed some dentil molding for the project I’m building. I whipped this up and then thought maybe some of our new folks have never seen one. I know all the old hands have these and have known about them for years. A similar jig can be used for finger joints. Anyway, it’s nothing more than a long fence on a miter gauge with a spacer the size of the notch and spaced correctly. By moving the notch to the spacer you keep the distance between notches the same. ( I don’t know if I even spelled “Dentil” corrrectly.) A little tip; make your molding a little wider than you want and then run it through the planer to the width you want. This will clean up any chips caused by the dado cutter. You might also want to check and make sure your brad nailer or pin nailer will fit into the notch. I thought of this AFTER I’d made about 20 feet of molding. I left the sawdust for the guy who thought we needed to see some in our projects. LOL

-- Thos. Angle, Jordan Valley, Oregon

12 comments so far

View oldskoolmodder's profile


760 posts in 2276 days

#1 posted 2026 days ago

Nice Jig there Thomas. Newbies and oldies can learn a lot from these types of jigs. I know what dentil molding is, but never thought about making it myself, when “we” show others here how to make the jigs in a simple form, we all learn something.

-- Respect your shop tools and they will respect you - Ric

View lew's profile


9937 posts in 2351 days

#2 posted 2026 days ago

Ditto what OldSkool said!!

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View Dusty56's profile


11638 posts in 2284 days

#3 posted 2026 days ago

Yes you spelled dentil correctly : ) Nice jig to share with us all . Thank you : )

-- I'm absolutely positive that I couldn't be more uncertain!

View Lee A. Jesberger's profile

Lee A. Jesberger

6646 posts in 2575 days

#4 posted 2026 days ago

Hi Tom;

Nice setup.

I have that same tendency to think of the nailer width, just a tad too late! LOL

That’s part of the excitement of woodworking. There’s always something new to screw up!


-- by Lee A. Jesberger

View CharlieM1958's profile


15639 posts in 2814 days

#5 posted 2026 days ago

Yep. I’ve seen these used for box joints, but never thought of doing dentil molding. Thanks!

-- Charlie M. "Woodworking - patience = firewood"

View gjd's profile


18326 posts in 2248 days

#6 posted 2026 days ago

Like Charlie, I have used tis type of jig often for box joints but Duh, never thought of applying the technique to dentil molding.

-- gjd Southcentral Wisconsin

View mtnwild's profile


3474 posts in 2123 days

#7 posted 2026 days ago

Great, I learned two things on your simple jig. Think of the corners, that’s big! And the nail gun head. Thanks!

-- mtnwild (Jack), It's not what you see, it's how you see it.

View Karson's profile


34852 posts in 2996 days

#8 posted 2026 days ago

Great idea Thomas and Barry thanks for the heads up.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware †

View RAH's profile


414 posts in 2473 days

#9 posted 2026 days ago

This is like my finger box joint jig. I hope I can remember the excellent tips that came from this post when the time comes.

-- Ron Central, CA

View Grumpy's profile


19310 posts in 2447 days

#10 posted 2026 days ago

Nice one Tom. It’s the simple ones that work the best.

-- Grumpy - "Always look on the bright side of life"- Monty Python

View RRGR's profile


54 posts in 1930 days

#11 posted 1911 days ago

If you have to end at the corner with a complete box witch makes sense by the way. How do you deal with the inevitable uneven boxes in the sides where the runs from the corners meet?

View Toughskin's profile


38 posts in 1748 days

#12 posted 1678 days ago

All the stores in my area do not carry dentil trim. I have search 4 stores. So, instead I decided to make it. This jig is perfect plus the fact it does finger joints on the side is a bonus. Thank you very much for the posting!

-- Dan - Marion, Iowa - Everything you want is just outside your comfort zone

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