The P4TTH Cornerlock PSA Heavy Grade Panel is a premium raised access flooring solution, specifically designed for high-load applications where fire safety, moisture resistance, and structural integrity are paramount. Unlike traditional wood-core panels, this panel features an inert calcium sulphate (gypsum fibre) core, which offers superior fire resistance (A1fl fire-rated, non-combustible) and enhanced moisture stability, making it an ideal choice for humid environments or areas requiring strict fire regulations compliance. Manufactured with 1x hole in the corner of each panel to screw down to the head of the pedestal for ultimate rigidity.
With a high-density core of 1600 kg/m³, the P4TTH panel delivers exceptional mechanical performance, capable of withstanding heavy loads and impact stress. Fully encapsulated in 30% recycled galvanized steel trays (0.40 mm thick), it provides robust protection against wear, deformation, and moisture absorption. The quadruple-folded patented perimeter joint enhances structural integrity, ensuring long-term durability in demanding environments.
Tested to PSA MOB PF2 PS Heavy Grade, the panel meets the highest UK commercial standards, making it suitable for mission-critical installations, ensuring resilience under heavy foot traffic and equipment loads.
Fire safety is a standout feature of this panel. With an A1fl rating (EN 13501-1), it is fully non-combustible, offering maximum protection in the event of a fire. It also meets REI 60 (EN 13501-2) standards, providing up to 60 minutes of fire integrity and insulation performance, making it an ideal solution for high-risk environments.
In addition to its strength and fire safety, the P4TTH panel delivers 50 dB airborne sound insulation, improving acoustic performance in high-traffic and shared workspaces. Designed for stringerless pedestal systems, it allows for flexible installation and underfloor cable management, making it a practical choice for modern technical environments. The bare finish supports a variety of surface coverings, from conductive tiles to anti-static vinyl, enabling customisation to suit specific applications.
Sustainability is integral to its design, featuring a Cradle to Cradle Certified™ Bronze rating and 51% post-consumer recycled content. With a 50-year lifespan and zero water waste in production, this panel supports BREEAM and LEED® sustainability targets, aligning with the UK’s environmental goals for commercial developments.
With its unrivalled fire resistance, humidity stability, and heavy-load performance, the P4TTH PSA Heavy Grade Panel is the ultimate raised flooring solution for high-risk and high-load environments.
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