9/16 Inch (15mm)

Tiles ~9/16 inch (15mm) are a good size to use if you are looking for something roughly in the half-inch size range, which is large enough to make cutting into halves and quarters practical. If your surface is large enough (such as a counter top or backsplash), whole tiles of this size could be used to render simple images or at least abstract patterns, but cutting glass tile requires minimum force and is an easy way to add detail to your design.