Belgard® Hardscapes Introduces Mega-Tandem™ Wall Block

Words: Bronzella Cleveland

Belgard® Hardscapes has introduced the Mega-Tandem™ Mass Retaining Wall™ (MRW) block, a versatile wall block system with the natural look of stone that allows for building reinforced walls up to 15 feet high and gravity walls up to 10 feet without reinforcing.

"The size and connectors in the Mega-Tandem MRW system allow for a gravity wall height of up to 10 feet without a surcharge, which is ideal for  wall projects where it is difficult to impossible to excavate for stabilization for a retaining walls," said Al Pfannenstein, national retaining wall manager for Belgard Hardscapes. "This height is a sharp contrast to the traditional three-foot height that SRW products typically can achieve without reinforcement."

Mega-Tandem features a patent-pending, positive mechanical connection. The reinforced polypropylene connecting members create structural integrity in curved or straight retaining and freestanding walls. Available in a 12 x 24 panel weighing 65 pounds, the system has a running bond configuration so no patterns are required.

Meeting ASTM standards (C-1372 and C-1262), Mega-Tandem's 8,500 psi compressive strength concrete makes it suitable across the country, even the coldest environments where it can withstand harsh freeze-thaw cycles. It is available in three color blends, and in 12 different facial textures with the classic look of natural chiseled stone.

"The design versatility offered by Mega-Tandem provides flexibility for better integration of retaining walls in building and landscape designs of commercial properties and homeowners' outdoor living spaces," Pfannenstein said.

For more information and a how-to video, visit: http://youtu.be/WD5fxpFVMnI.

The Importance of Instructor Support
April 2026

Whether you are a new or veteran masonry instructor, we all need support throughout our careers. We can never stop learning, and keeping up with ever-changing technology, materials, and installation techniques can be overwhelming alongside the everyday pr

Vibing Masonry #11: Innovative Concrete Masonry Technologies in Healthcare Design
April 2026

In the high-stakes environment of healthcare design, every material choice is a clinical decision. Architects, engineers, and facility administrators are tasked with creating spaces that are not only resilient and code-compliant but also conducive to heal

Why Termination Bars Still Matter: A Practical Look at Long‑Term Flashing Performance
April 2026

In recent discussions across the masonry industry, I have heard termination bars described as “old school.” The implication is that with modern materials, primerless peel-and-stick flashings, advanced sealants, and structural insulated sheathing, mechanic

Building Solutions: The Critical Role of Cavity Space in Masonry Moisture Control
April 2026

Long before “rainscreen” became a popular term in building science, masonry cavity walls were functioning on that very principle. A brick veneer cavity wall is designed with the expectation that water will penetrate the exterior