How to make a rectangular origami box III

(page 4)

5th picture of rectangular origami paper box III

05.

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

Prepare to apply four horizontal "valley-folds" and then unfold.

6th picture of rectangular origami paper box III

06.

Apply four horizontal valley-folds of the step #5 and then unfold.

Prepare to apply four vertical valley-folds and then unfold.