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

Silca System is the original interlocking structural support grate. Architects, builders, landscapers and suppliers across New Zealand and Australia have trusted it for over 13 years, with more than 20 years of proven use in the USA. While imitation products are now appearing in the market, none match the proven performance, engineering integrity or compliance history Silca System has delivered for more than a decade.

We developed Silca System through extensive R&D and tested it against New Zealand and Australian compliance requirements. It has performed successfully in thousands of installations. The system supports heavy surface finishes, distributes loads efficiently, and creates a stable, durable, permeable platform over timber or aluminium joists. It can also install directly over Buzon pedestals for membrane applications. Therefore, its track record cannot be replicated overnight by copy products with no testing, no field data, and no verified performance.

Unlike unproven alternatives that make claims they cannot support, Silca System complies with B1/VM1, AS/NZS1170.1 and E2/AS1 standards. In addition, documented testing, engineering data, and installation history back every compliance claim.

Silca System remains the most cost-effective and best-engineered solution in its category. We manufacture it locally in New Zealand from 100% recycled plastic. As a result, it provides a reliable and environmentally responsible option that supports circular-economy principles. Because we produce it locally rather than import it, we maintain consistent supply and dependable quality control with local expertise. We also hold strong stock levels and deliver reliably to both residential and commercial projects.

Merx Pacific, a family-owned and operated business, stands behind every Silca System installation. We maintain transparency, accuracy and accountability in design, compliance and technical support. Our focus remains long-term performance rather than short-term sales.

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