Our thermal finish flagstone in large random shaped slabs. This bluestone is sawed to 2″ and 1.5″ thickness grades. Consistent stone thickness allows for easier installation on the job site. The stone surface is “heat treated” which gives a consistent uniform texture. Sawn and Thermaled Irregular has variations of blue, gray, and green color tones. Individual pieces can range in size from 3 square feet to 15 square feet.