Making a Corner Cube Hideout

Posted by Summer Wright on

This tutorial will show you how to make a Corner Cube with hidden seams. I'll list example sizes below, but you can make them bigger or smaller with a few tweaks. (Try to ignore my poor, abused table, it's just used as a cutting mat a lot.)

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Supplies needed:

-Sewing Machine(here's the one I use)
-Rotary Cutter or Scissors
*Fabric pen or chalk to mark cut lines
*Something circular to trace for entrance hole
*Pins or clips
*C-Links to hang items

*Optional supplies

Fabric Needed:

-Fleece Solids:

  • One 13" x 6" rectangle
  • Two 9" x 6" rectangles
  • One 10" square, cut diagonal

-Fleece Prints:

  • One 13" x 6" rectangle
  • Two 9" x 6" rectangles
  • One 10" square, cut diagonal
-Three 1" x 4" fleece strips for hanging tabs

If you don't know which side of fleece is the 'right' side, hold the fabric so it stretches across, then pull slightly. The edges of the fabric will curl towards the 'wrong' side.

Step One:

First, we'll make our entrance hole. Grab your two 13" x 6" pieces, these will be the front of the corner cube. Place them on top of each other and line them up, right sides facing together. Using something circular, trace around where your entrance hole will be. I use a small treat container for small ones and the inside of a roll of tape for larger ones.


Step two:

After tracing, go ahead and cut out the hole and sew around it. 

Optional: You can sew around it first and then cut the hole, if you'd prefer(just be careful not to cut though the stitching).

Step three:

Flip the pieces inside out through your entrance hole, so that the right sides are now facing away from each other. You can top stitch around the entrance to make it more neat and hold everything together nicely.

Step four:

Now it's time to sew the sides, we'll start with the print layer.
Lay down your front panel laying with the print up, and grab one of your 9" x 6" pieces. Line it up right side down with the edge of the front panel. Sew the two print layers together, like pictured. Make sure to fold the solid layer out of the way and don't sew through it!

Optional: Trim around the solid pieces to make them a bit smaller, so the inside doesn't bunch up so much.


Step five:

After you sew the first side on, fold the layers open(like a book). Grab your second 9" x 6" and repeat step 4.


Step six:

After sewing the second side on, open the layers again(like a book). You should now have a long rectangle of connected sides. Fold the pieces in half like shown, making sure the solid layer on the front piece is facing outwards. Sew down the right edge to connect the print layer.

Step seven:

Repeat on solid side. Once finished, it should look about like this.

Step eight:

Grab one of your print triangles and sew the top layer on. Make sure to sew tabs into the corners! I find it easiest to start by lining up one of the short sides on the triangle piece and my side panel. You can pin or clip the top triangle onto your side and front panels to make it easier to sew around.

Next, sew the bottom triangle on. leave a gap to flip the corner cube, about 1.5 inches long. I leave my gap on the back side of the bottom. You can leave yours somewhere else if you'd like though.

An easy way to do the corners is to keep the needle in the fabric, lift the presser foot, turn the fabric and line it up, then put the foot back down and continue.

To make the tabs: Fold your strips in half to make them loops, then line up the open ends with the edge of where you're sewing.

Step nine:

Repeat step eight on the solid side(skipping the tabs and turning hole). Flip the entire corner cube through your turning hole, and sew the hole closed with a tight stitch. Push the solid layer inside the print layer, and then you're done!

Optional: You can also add a couple tight stitches on the top edges to help keep the inside layer from falling down.

I hope this tutorial helped! Feel free to leave a comment below and let me know how you liked it, or if you have any additional questions! If you'd like to purchase one of these instead, you can get them here.


Stay motivated to help prevent boredom and burnout! Try listening to music, audiobooks, or podcasts while you work. My favorite service is Audible(price varies, use my link for 2 free books), especially with their new 'Plus' catalog, that you can listen from at no extra cost with your membership.



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