Over-Under Knock Boxes

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Project by JL7 posted 08-04-2013 06:01 PM 2742 views 14 times favorited 14 comments Add to Favorites Watch

This is the third post on the “Knock Box” concept…...I haven’t run out of material yet, so I keep building them…..and still trying to improve the fit and finish. The concept is to make an extremely simple looking box that is tricky to figure out how to open.

The latest design is an over-under playing card box. They hold two decks of cards (top and bottom). As my friend Randy would say, it facilitates dealing off the bottom of the deck…...

Here is how it works and the video is only 15 seconds….and of special note, the video thumbnail actually contains a thumbnail!

Pics 1 & 2 are the card boxes.

Pics 3 & 4 also include some other “regular” boxes plus one with a little removable tray thingie..

Pic 5 is all the unfinished boxes that are sitting in inventory…..waiting for a purpose…

Pic 6 is all the boxes I’ve built and still have….and I’ve given a dozen or so away…

I use a Japanese Dozuki saw to cut the end of the lid free from the side, but it leaves a thin gap:

So I’ve been gluing on a little filler piece and sanding them to suit to better keep the secret of the boxes:

Most of the materials used are re-purposed flooring, and cleaning up that material yields A LOT of this:

It occurred to me this thin little Birdseye scraps would make some cool inlay banding, I just push it thru the drum sander quick like and it’s good to go:

Here’s a little peek at the parts of the card box:

I have a mini CNC, so the boxes can be personalized…...that’s part of the reason I have a bunch unfinished, so I can just grab one and carve whatever I want. Here is an example from under the lid:

Material used in this latest batch: Birdseye maple, Cocobolo, Rosewood, Zebrawood, Padauk, Walnut, Tigerwood, Lacewood and probably one or two that I forgot. Most boxes have grain matching in all corners, which is done using book matched stock. A cool trick I learned from Doug Stowe.

Finish is Shellac and the Beall buffer…..

There is silent auction coming up to raise some funds for my sisters fight with cancer, so will be donating a few to the cause…...

I still have a good size stack of book matched stock, so might as well build a couple more ;>)

Thanks for looking.

-- Jeff .... Minnesota, USA

14 comments so far

View ShaneA's profile


7036 posts in 2744 days

#1 posted 08-04-2013 06:04 PM

Good stuff Jeff. The logo design and execution is awesome.

View degoose's profile


7238 posts in 3500 days

#2 posted 08-04-2013 08:33 PM

Truly fabulous…

-- Don't drink and use power tools @

View sras's profile


4883 posts in 3275 days

#3 posted 08-04-2013 08:43 PM

Great project!

-- Steve - Impatience is Expensive

View DIYaholic's profile


19657 posts in 2821 days

#4 posted 08-04-2013 08:53 PM

You have been a busy, busy, busy little beaver!!! With even more work ahead….

Besides the “dealing off the bottom of the deck”...
The book matched stock & dual lids indicate a little “double dealing” going on!!!

The boxes look great (as all your projects do) and I’m sure they will sell very well at the “silent” auction.
However, I don’t think the auction will be totally silent…..
There WILL be plenty of “Ohhh’s & Ahhh’s”!!!

My best to your sister and may the auction bring in a lot more than just the “Ohhh’s & Ahhh’s”!!!

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View boxcarmarty's profile


16583 posts in 2506 days

#5 posted 08-04-2013 11:24 PM

Did somebody say auction???

-- My mind is like lighting, one brilliant flash, then its gone.....

View Roger's profile


20948 posts in 2950 days

#6 posted 08-05-2013 12:15 AM

Is this some sort of knock-knock joke??? LOL VEry Very kool Jeff

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed.

View SPalm's profile


5322 posts in 4028 days

#7 posted 08-05-2013 12:31 AM

Love to your Sister. Yikes.

But wow, that is a boat load of boxes. Sweet. You are a machine.

-- -- I'm no rocket surgeon

View maplerock's profile


529 posts in 1946 days

#8 posted 08-05-2013 02:51 AM

I love the little boxes. That is quite a body of work there. I like the various designs and little mysteries you are building into the boxes. The pictorial was quite helpful too.

-- Jerry... making sawdust in the Knobs of Southern Indiana

View SgtRich's profile


53 posts in 1957 days

#9 posted 08-05-2013 11:53 AM

Do you sell them outright?

very nice.

-- Every day is another opportunity to create something great.

View Roger Clark aka Rex's profile

Roger Clark aka Rex

6940 posts in 3581 days

#10 posted 08-05-2013 12:58 PM

WOW Jeff, awesome.
Gives new meaning to being boxed up in the basement. :-)
Super project, excellent execution. They are big hit.

-- Roger-R, Republic of Texas. "Always look on the Bright Side of Life" - An eyeball to eyeball confrontation with a blind person is as complete waste of Time.

View JL7's profile


8685 posts in 3111 days

#11 posted 08-07-2013 01:47 AM

Appreciate all the comments…..thanks. Rich – haven’t sold any, really not sure I want to turn that corner yet. Maybe some day…

-- Jeff .... Minnesota, USA

View Dave's profile


11429 posts in 2986 days

#12 posted 08-07-2013 03:03 PM

Jeff you are the Knock Box Man.
Nice work!
As always.

-- Superdav "No matter where you go - there you are."

View JL7's profile


8685 posts in 3111 days

#13 posted 08-08-2013 12:08 AM

Thanks Dave…..

-- Jeff .... Minnesota, USA

View robscastle's profile


5313 posts in 2350 days

#14 posted 08-12-2013 08:40 AM

I would like to see the CNC router, I could not find it anywhere rummaging through your workshop

-- Regards Rob

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