Beautiful, versatile and modified to last, Brimstone is a new breed of thermally modified British wood for external timber cladding. Sourced from woodlands across Britain, Brimstone is heated to 210 degrees, creating cladding that is very durable, stable, and visually attractive. If you are looking for a relatively knot-free hardwood cladding with a refined appearance and local provenance, Brimstone is for you. Brimstone combines function and quality along with the wider benefits of local purchasing and support for native woodlands.