Rectangular Origami Box Instructions
This model is adapted from the traditional origami Masu box,
The nice thing about this origami box is that it's shallow, you could store postcards, envelopes, pencils or use as a gift box for jewelry, and more!
In order to make a lid, you can use paper that is slightly bigger.
You will need one sheet of square paper of any thickness. You will not be able to see the white side of the paper once it's completed.
To hold heavier objects you could use thicker paper or thin card. It is recommended to start with paper that is at least 15 x 15 cm.
Tip: Make all your folds as clean as crisp as you can, this way your origami box will turn out much better.
1. Start with your paper white side up.
2. Fold the paper in half diagonally both ways.
3 and 4. Fold all of the four corners to the central point.
5. All four corners all folded.
6. Unfold the paper completely.
7. Fold the bottom corner up to meet the top crease where it intersects with the central crease.
8. Unfold and then do the same thing with the top corner.
9 and 10. Fold the bottom corner up to meet the crease that is the second down from the top.
11. Fold the top corner down and align it with the crease as shown.
12. Fold the left and right corners in aligning them with the two big flaps.
13 and 14. Fold the right edge to the left, alleging with the top and bottom horizontal creases.
15. Fold the left edge in.
16. Unfold the left and right edges again.
17. Fold the top and bottom creases up to create the box.
18 and 19. Make a valley crease where shown.
20. Do the same on the other three corners.
Assemble the box by folding the flaps over and locking them into place.
You can use a little bit of glue to make it sturdier! If you want to make a lid, simply use a slightly larger piece of paper (or smaller if you already used your paper). You can try a few millimeters off of the top and left side. Alternatively, you can under-fold all of the folds at the start, which will result in a "looser" box.