Thermal sills are solid, pre-cut bluestone pieces made for window sills, water tables, and wall caps. They’re heat-finished at high temperatures, which brings out a clean, textured surface that adds grip and holds up to the weather. Built to shed water, built to last.
Specs
Colors: Blue, Full Color
Thickness: 1.5”, 2.0”
Widths: 2.0”, 3.0”, 4.0”, 6.0”, 8.0”, 10.0”
Lengths: 3’-8’
Custom sizes, thickness, and finishes on
sills available.