What this template is for
A tetrahedron made from a single flat tube, sealed at right angles top and bottom. One rectangle, four triangular faces.
- Party favours and sweet packs
- Maths and geometry teaching models
- Tea and sample packaging
- Hanging decorations
How to build it
- Type the size you need above, in millimetres, centimetres or inches.
- Download the PDF and print it at 100% — never “fit to page”.
- Cut every solid line and score every dashed line.
- Glue the long seam into a tube. Flatten and seal one end, then flatten the other end at ninety degrees to the first and seal it.
Questions about the tetra pack
- How does one rectangle become a tetrahedron?
- Glue the long seam to make a flat tube. Seal one end, then turn the other end ninety degrees to the first and seal that. The tube is forced into four triangular faces.
- What is the edge length?
- The length of one edge of the finished tetrahedron. All six edges are the same on a regular one.
- How do I seal the ends?
- Glue, staple or a strip of tape all work. The seal band is the flat strip at each end of the rectangle.
Other templates
Flat packs
- Pillow pack
- Envelope
- Paper bag
- Tetra pack