Silca System: The Original, Proven, and Compliant Structural Support Grate

Silca System is the original interlocking structural support grate trusted by architects, builders, landscapers and suppliers across New Zealand and Australia for over 12 years, originally over 20years in the USA>. While imitation products are beginning to appear in the market, none have the proven performance, engineering integrity or compliance history that Silca System has delivered for more than a decade.

Silca System was developed through extensive R&D, tested against NZ and Australian compliance requirements, and has been used in thousands of successful installations. The system is engineered to support heavy surface finishes, distribute loads efficiently, and create a stable, durable, permeable platform over timber or aluminium joist for over ground, or direct on Buzon pedestal for over membrane. That track record cannot be replicated overnight by new copy-cat products with no testing, no field data, and no verified performance.

Unlike unproven alternatives making claims they cannot stand behind, Silca System is fully compliant with B1/VM1, AS/NZS1170.1 and E2/AS1 standards. It has the documented testing, engineering, and installation track record to support those claims.

Silca System also remains the most cost-effective and best-engineered solution in its category. Manufactured locally in New Zealand from 100% recycled plastics, it provides a reliable, environmentally responsible option that supports circular-economy principles. Our product is New Zealand made, not imported, ensuring consistent supply and dependable quality control with local know how. We hold strong stock levels and deliver reliably to both residential and commercial projects.

As a family-owned and operated business, Merx Pacific stands behind every Silca System installation. We maintain transparency, accuracy and accountability in design, compliance and technical support. Our focus is long-term performance, not short-term sales.

For architects, builders and homeowners who want a system with proven results—not false promises—Silca System remains the trusted choice.