The Portland Cement Company makes these tiles out of a proprietary concrete, which is cast in a wedge-shaped seven-inch-hexagon mold and left to dry overnight, then for a few weeks on a baking sheet.  Photo 5 of 11 in Floor Tiles by Elaine & Russ from How to Design with Hexagon Patterns

Floor Tiles

5 of 11

The Portland Cement Company makes these tiles out of a proprietary concrete, which is cast in a wedge-shaped seven-inch-hexagon mold and left to dry overnight, then for a few weeks on a baking sheet.