The truncated cube is one of the 13 Archimedean solids. The model is made of 8 triangels and 6 octagons.

Truncated Cube nets (templates) for making the shape

truncated cube (.PDF)

truncated cube (large) (.PDF)

Print the PDF file to make the paper model.

The large version of the truncated cube has a circumscribed sphere diameter of 24 cm (9.5 inches).