Box Joint Jig

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Project by plantek posted 02-12-2012 03:24 PM 3219 views 12 times favorited 7 comments Add to Favorites Watch

I came across this plan a while ago on and liked it right away. I already have a box joint jig for my router but it only does 1/2”. With a upcoming project that will be out of 1/4” material I decided it was time to build this.
The beauty of this jig is that the size of the joint fingers is dictated by the key stock you put in.
So far I only have 1/4” and 3/8” keys. I will add as needed.
I made it out of 3/4” oak ply and hardboard. It’s finished with one coat of shellac and paste wax.
This thing is a dream. I’ve already set it up for 1/4” stock in preparation for my project. It was a great project to build and will be with me for a long time.
Being as satisfied as I am with the outcome of this jig, the next “permanent” jig I make will be out of baltic birch ply.
You can find the plans for this here:

The jig is well worth the time and money spent.
Thanks for looking…

-- If you want it and it's within reason... It's on it's way!

7 comments so far

View lanwater's profile


3111 posts in 3080 days

#1 posted 02-12-2012 03:44 PM

A great finger joint jig indeed.


-- Abbas, Castro Valley, CA

View MasterSergeant's profile


1371 posts in 2834 days

#2 posted 02-12-2012 04:29 PM

Thanks for the tip! I built the jig I bought from Shop Notes and never could figure out how to use the darn thing “correctly” to get accurate box joints. This one looks a lot less complex to set up. I’ll start working on this one today.

-- Kelly, woodworker under construction

View Cornductor's profile


208 posts in 2813 days

#3 posted 02-12-2012 05:29 PM

Looks like a very straight forward shop jig. Let us know how it works for you.

The shopnotes ad said the same thing “straight forward simple jig” till I made it and still cant figure out how the micro adjustments work.

MasterSergeant- what problems did you run into?

-- An investment in knowledge pays the best interest. Benjamin Franklin

View doncutlip's profile


2832 posts in 3702 days

#4 posted 02-12-2012 08:45 PM

Nice looking jig

-- Don, Royersford, PA

View gfadvm's profile


14940 posts in 2836 days

#5 posted 02-13-2012 02:22 AM

In my opinion that Shopnotes jig had a LOT of design flaws. I bought the kit and spent way too much time b uilding it only to discover that it was a PITA to use. I am much happier with the simple ones like I posted earlier. The ones where the workpiece sits on top of a base have caused problems for me (base limits depth of cut and cutting several pieces at once is a problem).

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View StumpyNubs's profile


7656 posts in 2946 days

#6 posted 02-13-2012 02:17 PM

Looks great! Very well done! Thanks for posting!

-Jim; aka “Stumpy Nubs”
Blue Collar Woodworking? FINALLY, a woodworking show for us morons! ” -The Hoboken Evening Review

-- Subscribe to "Stumpy Nubs Woodworking Journal"- One of the crafts' most unique publications:

View helluvawreck's profile


32083 posts in 3012 days

#7 posted 02-13-2012 04:53 PM

It looks like a good workable jig. Congratulations.

helluvawreck aka Charles

-- helluvawreck aka Charles,

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