1. Take A4 paper, cut a square measuring 21x21 centimeters.
2. Then bend the sheet diagonally.
3. Fold the paper again, you will end up with a triangle.
4. Then open the sheet completely and fold the paper in relation to the intersection of the diagonals.
5. The result will be a two-layer square.
6. Bend its sides in half, and then lift the sides of the future box along the same lines.
7. For strength, you can connect the sides of the square with glue or staplers.
This will be the bottom of the box, you can make the top in the same way.
![Paper](https://i.washerhouse.com/images/1/1494-list-bumagi.jpg)
![cut off](https://i.washerhouse.com/images/1/1495-otrezaem.jpg)
![fold](https://i.washerhouse.com/images/1/1496-skladyvaem.jpg)
![hit](https://i.washerhouse.com/images/1/1497-popala.jpg)
![bend the sheet](https://i.washerhouse.com/images/1/1498-sgibaem-list.jpg)
![it turned out to be a square](https://i.washerhouse.com/images/1/1499-poluchilsya-kvadrat.jpg)
![bend the corner](https://i.washerhouse.com/images/1/1500-zagibaem-ugol.jpg)
![bend all corners](https://i.washerhouse.com/images/1/1501-sgibaem-vse-ugly.jpg)
![bend it like this](https://i.washerhouse.com/images/1/1502-sgibaem-tak.jpg)
![happened](https://i.washerhouse.com/images/1/1503-poluchilos.jpg)
![the square is almost ready](https://i.washerhouse.com/images/1/1504-kvadrat-pochti-gotov.jpg)
![fasten with a stapler](https://i.washerhouse.com/images/1/1505-skreplyaem-steplerom.jpg)
![glue](https://i.washerhouse.com/images/1/1506-kleim.jpg)
![until it dries](https://i.washerhouse.com/images/1/1507-poka-vysohnet.jpg)
![box](https://i.washerhouse.com/images/1/1508-korobochka.jpg)
![gift box](https://i.washerhouse.com/images/1/1509-podarochnaya-korobka.jpg)