Reversable Box Joint Jigt

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Project by Tooch posted 09-17-2013 09:51 AM 2711 views 23 times favorited 12 comments Add to Favorites Watch

Here’s a Box Joint jig I made last year, used it to produce several projects so far. On one side, it can be used to make 1/4” finger joints, and then can be flipped over to produce 3/4” joints. I ran a dado along both sides of the 2×4 to make sure the hardware was recessed, and mortised out the center areas to make it adjustable.

Its pictured on the table saw with a regular blade, but obviously there should be a dado on there. Sorry, I just didn’t feel like switching the blade out for just a couple pictures…. call me lazy.

Thanks for looking.

-- "Well, the world needs ditch-diggers too..." - Judge Smails

12 comments so far

View jimmyb's profile


185 posts in 1499 days

#1 posted 09-17-2013 01:03 PM

Nice job and practical. Make sense to use both sides. Gives me ideas LOL

-- Jim, Tinley Park, IL

View Diggerjacks's profile


2153 posts in 2746 days

#2 posted 09-17-2013 01:48 PM

Hello Tooch

Simple and usefull

Thanks for sharing

-- Diggerjack-France ---The only limit is the limit of the mind and the mind has no limit

View Joe's profile


80 posts in 1550 days

#3 posted 09-17-2013 02:39 PM

Great idea! Going to have to build me one of these. Thanks for sharing.

-- It's better to have a tool and not need it than to need a tool and not have it.

View shipwright's profile


7487 posts in 2405 days

#4 posted 09-17-2013 05:21 PM

Used this style for years and never felt the need for anything more elaborate. I usually make them, use once and throw away but I just clamp them to the miter gauge.
I have to say I really don’t understand the reasoning behind the elaborate ones. Maybe I’m missing something.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

View hoss12992's profile


3847 posts in 1500 days

#5 posted 09-17-2013 06:24 PM

Really cool and practical. Great idea

-- The Old Rednek Workshop

View NiteWalker's profile


2736 posts in 2184 days

#6 posted 09-17-2013 06:47 PM

@shipwright: The idea behind the elaborate jigs (be it shop made or fancy) is adjustability and maybe something more permanent than a quick throw away. There’s nothing wrong with simple jigs; if one only cuts 1/4” box joints, why bother with anything more than a simple, shop made 1/4” box joint jig?

I bought the ibox because I got it at a great price and because I wanted the adjustability and flexibility to use it on any size box joint. When I say adjustability for the ibox, I mean you can literally fine tune the fit of the box joints by .001 at a time should you need to.

But again, nothing wrong with a simple shop made jig, just as there’s nothing wrong with a fancy shop made or store bought jig. Both get the job done. It’s all user preference. ;-)

@Tooch: Nice simple jig. Well done.

-- He who dies with the most tools... dies with the emptiest wallet.

View TheOldWoodworker's profile


29 posts in 2421 days

#7 posted 09-17-2013 08:43 PM

Great idea


View  woodshaver (Tony)   's profile

woodshaver (Tony)

4625 posts in 2960 days

#8 posted 09-17-2013 10:06 PM

I really like the simplicity of this gig! Glad you posted it, I must give this one a try soon!

Thanks for sharing Tooch!

-- St Augustine FL, Experience is the sum of our mistakes!

View doubleDD's profile


5878 posts in 1650 days

#9 posted 09-18-2013 12:31 AM

Really neat idea ,and practical too.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View NormG's profile


5731 posts in 2611 days

#10 posted 09-18-2013 01:27 AM

Two for one, great idea, more usage, less space to store

-- Norman - I never never make a mistake, I just change the design.

View Mean_Dean's profile


5393 posts in 2755 days

#11 posted 09-18-2013 02:36 AM

That’s a great jig! I like the idea of being able to make two sizes of box joints with one jig. Very efficient design.

-- Dean -- "Don't give up the ship -- fight her 'till she sinks!" Capt James Lawrence USN

View Blackie_'s profile


4652 posts in 2120 days

#12 posted 09-18-2013 03:41 AM

Very nice Tooch and very creative, you made a key point “Its pictured on the table saw with a regular blade, but obviously there should be a dado on there. Sorry, I just didn’t feel like switching the blade out for just a couple pictures…. call me lazy.”
That’s the very reason I use my router table with the ” MLCS Multi joint system for me it’s much easier to switch out a router bit and leave the single blade in the saw, on the plus side I get a cleaner cut as well, no tear out.

-- Randy - If I'm not on LJ's then I'm making Saw Dust. Please feel free to visit my store location at

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