How to Fold an Origami Masu Box

Medium level, 14 steps. Traditional. Earliest record: Der Kindergarten (Goldammer), 1874.

The animated version shows each fold moving, one step per screen. This page shows every step at once.

All 14 steps

Step 1. Start white side up. Fold in half corner to corner, then unfold.
Step 2. Fold in half along the other diagonal, then unfold.
Step 3. Fold one corner to the center.
Step 4. Fold the next corner to the center.
Step 5. Fold the next corner to the center.
Step 6. Fold the next corner to the center.
Step 7. Fold the top edge to the center, then unfold.
Step 8. Fold the bottom edge to the center, then unfold.
Step 9. Fold the left edge to the center, then unfold.
Step 10. Fold the right edge to the center, then unfold.
Step 11. Unfold one corner back out.
Step 12. Unfold the opposite corner too.
Step 13. Lift the two folded sides up as walls. Push each open end in along the creases so its corners fold inside and the end stands up.
Step 14. Fold each end flap over the end wall and down into the box.
Done. The masu box.