InsulStone, Inc.
100 S. Adkins Way
Suite 104
Meridian,ID 83642

CastleRock™, established in 2008, was the original creator of the modular continuous stone panels with mechanical fasteners instead of mortar and grout. The unique design met the continuous insulation requirements without taped joints. A US patent was granted on May 15th, 20012 and Canadian Patent on March 24th, 2015. Since then, CastleRock™ insulated stone, porcelain and brick panels have gained market acceptance and been used by customers including Hyatt, IHG, Hampton, Hilton, Quality Suites, various schools, churches, and numerous commercial and residential buildings. In 2017 we received NFPA 285 high-rise compliance recognition. 

Our product lines include InsulStone manufactured stone panels, ICAP porcelain siding (flush & lap usually woodgrains), rectangular porcelain panels, porcelain brick, and large format panels. The continuous insulated system is available with R-values from R-5 to R-30 and an optional rainscreen built-in to the foam. It reduces installation cost by eliminating complex tracks and brackets and fastening directly to the substrate.   

Our panels up to 24” x 48” include simulated stone, granite, marble, acid wash metal and a variety of other styles and colors. We recently began offering “large format” light-weight thin porcelain (3.5MM) panels of “Laminam or Kerlite” up to 48” x 120”. 

The focus of CastleRock has been to simplify and improve the exterior cladding process with economical high-quality, acoustically beneficial cladding while reducing energy requirements and installation costs. We look forward to participating in your future projects. Please see some of our projects on our website at or contact us at 208-985-4200 or