How to make a tall square origami box

(page 4)

5th picture of tall square origami paper box

05.

Apply the vertical "gate-fold" of the step #4 and then unfold.

Now, you have completed making a "4x4 matrix base" .

Prepare to turn the paper over.

6th picture of tall square origami paper box

06.

Turn the paper over.

Prepare to apply a valley-fold and then unfold.