Simple box

by Yurii Shumakov

Use a square of paper.

1 Valley fold a sheet half-and-half on a horizontal.

2 Valley fold both layers. Unfold it.

3 Valley fold the corners as shown.

4 Valley fold one layer.

5 Valley fold the corners as shown.

6 Valley fold a strip upward.

7 Valley fold the lateral edges as shown.

8 Open a pocket upwards, simultaneously folding the lateral edges to the centre.

9 Valley fold the model on the existing creases. Unfold it.

10 Valley fold the bottom corners as shown. Unfold it.

11 It is a little by opening the layers, inside reverse fold the bottom corners.

12 Lift up the corners and insert them under layers.

13 Open out lateral walls and... the flat model will turn in a volumetric box!