Ottawa Platinum logo — premium Canadian grey limestone supplier for architecture, design, and restoration projects.

Exceptional Limestone, Sourced Exclusively from our Ontario Quarry.

Ottawa Platinum is more than stone — it’s a foundation for architectural expression, crafted by nature and trusted by design professionals worldwide.

Luxury hotel interior with premium Ontario limestone flooring (Ottawa Platinum) sourced from Canadian quarry, paired with velvet furniture and patterned walls.

Photo by Read McKendree / JBSA

Explore Finishes

  • Sawn Finish

    Sawn

  • Honed Finish

    Honed

  • Sandblasted Finish

    Sandblasted

  • Bushhammared Finish

    Bushhammared

  • Flamed Finish

    Flamed

  • Polished Finish

    Polished

  • Rock-Faced Finish

    Rock-Faced

Stone That Meets Architectural Standards.

Chosen by leading design firms, Ottawa Platinum is a material that embodies timeless beauty, surface finesse, and structural integrity — the perfect choice for enduring design.

High-rise building facade clad in premium Ontario limestone (Ottawa Platinum) from Canadian quarry, showing exterior architectural application.

High-Rise Facade Application

Built to Last.

Have a Project in Mind?