Rectangular Impossible Box – You can Make One Too

Hi Lovely Crafters.

I’ve had a few people asking how I made the Rectangular Impossible box featured in the #JOSTTT007 blog post and asking for some instructions….so here they are.

If you’re completely new to Impossible Boxes it might be a good idea to have a trial run using spare card stock just so that you can see how it all goes together before you start. They’re not difficult to make but can be a little fiddly at first.

When I made my first ever Impossible Box I followed a video tutorial by the lovely Julie on her Paper Pixie YouTube channel ( click here to see it   ).  I love this video because it explains simply and clearly how to put these boxes together so that they fit perfectly every time.

In this post I’m giving you the measurements. score and cut lines for the larger (3″ x 3″ x 1.5″) Crayon box which was made in inches (because lots of you seem to prefer working in Inches). I do also have the measurements etc for the smaller (7cm x 8cm x 3cm)  Rainbow box available too. If you’d like these measurements/instructions instead just pop a comment below and I’ll send them to you.

To complete the box I would recommend you look at Julie’s video to see how to put the box together because, no matter how hard I tried, the written explanation seemed confusing and not very easy to follow.

Okay dokey lets get started.

First you need to cut your chosen card so that you have a piece which measures 9.5 by 7 inches. (I used Stampin’ Up! Thick Whisper white card)

Next using your scoreboard place the long (9.5″) side of the card along the top edge and score at 3, 4.5, 7.5 and 9 inches (shown by the blue lines in the image below)65970499_511628672710086_6614919178291773440_n

Next rotate the paper anticlockwise so that the 9 inch score line is nearest to the top of the board and score at 1, 1.75, 2.5 and 5.5 inches (shown by the purple lines in the image below)66042698_1062457853959924_152628659365085184_n

Now fold the card along the second vertical score line (shown marked with arrows in the image below)66349985_952759705115972_1264543671655596032_n

Burnish the score line gently and then rotate the card clockwise so that the folded edge, with the shorter piece at the back, is at the top of the scoreboard.

The next step is to mark some points along the top edge( I’ve used a pen for the image below to make it clearer for you to see but usually I would use a light pencil mark or just mark it with my ball tool). Mark the card at 0.75, 3.75, 5.25 and 8.25 inches on the top edge.66414474_453983675398852_2085612586811785216_n

KEEPING THE CARD FOLDED OVER – Cut triangular pieces (coloured in red in the image below) from the top to form the mechanism for closing the box. You can either draw the triangle in a light pencil line to guide you for making the cut or just use your scissors to cut a line from each of the marks (you made along the edge) diagonally down to the left so that it meets the joining point of the score lines as shown in the image below.  For the first mark it will remove the triangle completely but for the other marks you will also need to cut down the vertical score line to the left of the mark to remove them.66131901_759846327766643_6584567993030672384_n


When you unfold your card it will look like this…..but without all of the pen lines lol.66429773_617260422016377_8857487634084134912_n

Now, to make the tabs needed to construct the box, remove the pieces I’ve coloured in red in the image below.

Then cut up the the vertical score lines from the bottom to the first score line which will create the panels to make the bottom of the box. I like to notch the edges of the inner ones to help get a less bulky finish on the base of the box.


Your basic rectangular Impossible Box is now ready to be adhered together. At this point, I’m handing you over to the video tutorial by Julie at the Paper Pixie (link above) because it shows this process much better than I can explain in words.

I haven’t given you the sizes for the mats and layers I used to decorate my box because your’s might differ in size slightly depending on the thickness of card and also the type of scoreboard you’ve used. Scoreboards with wider scoring channels and larger score tools (like this Hunkydory one) will create slightly wider and rounder corners than ones with fine tipped score tools and narrower channels (like the Stampin’ Up! scoreboard).

If you need any help with making up the mats and layers please get in touch and I’ll help you to work them out. It’s really important, if you decide to decorate your box before you construct it, to remember that the lid for the box comes down over the box sides by about an inch so any mats or layers will need to stop before that point to allow the lid to close.

I hope you have everything you need here to make a Rectangular Impossible Box of your own but if you need any more information or any of the steps explained more clearly just let me know. I’d also love to hear any other ideas yo might have for using this type of box for treats or gifts.

I’m off now to have some fun working on my top secret project for #JOSTTT008. Hoping you have a lovely day.

Happy Crafting

Anne-Marie x

3 thoughts on “Rectangular Impossible Box – You can Make One Too

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