Versatile Router Jig.

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Project by Bill Butler posted 03-24-2008 03:45 AM 4569 views 31 times favorited 13 comments Add to Favorites Watch

I am currently working on a bookcase where I wanted to do some really quality joinery which in my case means no visible fasteners.

I found this router jig in Taunton’s Jig and Fixtures text. I highly recommend this book as a good source of ideas. The jig is designed such that the one fence is fixed 90 degrees relative to the alignment block, and the other fence floats on a pair of slots.

Here in my jig I have trimmed the fence with a 1/2” router bit. This will allow me to cut any size dado from 1/2” up including the non standard 23/32” plywood.

The floating fence can be set at an angle which I am using to cut tapered sliding dovetails for my shelves.

Made from 1/4” hardboard, poplar, and a little scrap oak. The T-Nuts are from Rockler.

13 comments so far

View Dano's profile


222 posts in 4599 days

#1 posted 03-24-2008 04:13 AM

I have one too, I saw it originally in a podcast from Woodsmith. They work well just make sure that it is solidly clamped to the work piece. I had one slip on me and made a rather ugly dado, fortunately it was on the inside of the piece out of view.

-- Dan in Central Oklahoma, Able to turn good wood into saw dust in the blink of an eye!

View Bill Butler's profile

Bill Butler

74 posts in 4330 days

#2 posted 03-24-2008 04:18 AM

Dan, you are sooo right on that. I never cut sliding dovetails before and I thought I should practice and I discovered the same problem. Clamping that sucker down so it doesn’t move is very important. Luckily it happened during the practice session and I realized my error- my clamp caught a bit of the workbench surface, but not enough to hold firmly.

View Scott Bryan's profile

Scott Bryan

27250 posts in 4389 days

#3 posted 03-24-2008 04:37 AM

I built this as well. And it works well most of the time. I found that mine occasionally tended to shift ever so slightly when routing due to the side pressure from the router. This was just enough to give a sloppy dado which I found to be annoying. But it does work if you are careful.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View grovemadman's profile


556 posts in 4339 days

#4 posted 03-24-2008 04:49 AM

I have the book you speak of and there are quite a lot of jigs that look useful.

-- --Chuck

View Thos. Angle's profile

Thos. Angle

4444 posts in 4529 days

#5 posted 03-24-2008 05:07 AM

I’ve got one of these as well. Don’t remember where I saw it but it sure works.

-- Thos. Angle, Jordan Valley, Oregon

View GaryK's profile


10262 posts in 4555 days

#6 posted 03-24-2008 05:26 AM

Nothing like a good jig!

-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX

View Tim Pursell's profile

Tim Pursell

499 posts in 4349 days

#7 posted 03-24-2008 12:48 PM

I don’t have this particular jig, but with other clamp on type jigs I usually glue a sheet of sandpaper to the bottom of the jig to help keep it in place.


View Bradford's profile


1434 posts in 4390 days

#8 posted 03-24-2008 03:57 PM

I’m a clamp happy nut when it comes to dadoes. The there is nothing worse than running several dadoes before realizing your eschewed grooves.

-- so much wood, so little time. Bradford. Wood-a-holics unanimous president

View Kevin's profile


291 posts in 4525 days

#9 posted 03-24-2008 05:08 PM

I like this idea. I’ve been looking for a good way to do sliding dovetails.

-- Kevin, Wichita, Kansas

View Blake's profile


3443 posts in 4441 days

#10 posted 03-24-2008 09:22 PM

I really need to make one of these. Thanks for posting this.

-- Happy woodworking!

View DaveH's profile


400 posts in 4345 days

#11 posted 03-25-2008 12:54 AM

I have a similar jig. To help prevent the jig from moving on me I clamp and extra piece of wood on both sides of the jig if I have room.

-- DaveH - Boise, Idaho - “How hard can it be? It's only wood!”

View Paul D's profile

Paul D

2131 posts in 4315 days

#12 posted 03-25-2008 02:25 AM

Nice jig Bill. I don’t have one (yet). I would also recommend the book by Bill Hylton called “Woodworking with the Router” which I’m currently reading through. I could spend weeks (or longer) making all the jigs in that book. If you want to do something with a router this book probably has all the details and necessary jigs.

-- Paul D - Lawrenceville, Georgia

View rikkor's profile


11295 posts in 4441 days

#13 posted 03-25-2008 10:30 AM

Looks like something for the project list.

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