Unilock Concord Wall System: Durable Retaining Block & Wall Caps

Elevate your outdoor spaces with the Unilock Concord Wall System, an exceptional modular retaining block engineered for superior structural integrity and timeless curb appeal. Whether you are building a terraced garden bed or a heavy-duty retaining wall, this system delivers unmatched reliability.

Designed for both residential homeowners and professional landscape contractors, the Concord series combines heavy-duty performance with aesthetic versatility. From striking backyard terraces to multi-level commercial hardscapes, it provides the strength and stability required for long-lasting landscape architecture.

Key Features and Benefits

• High-Capacity Strength: Engineered to support severe load-bearing requirements, safely handling retaining applications up to 16 feet high.

• Efficient Installation: The expanded ConcordXL footprint covers square footage faster, drastically reducing labor hours on the job site.

• Color Customization: Standard stock options feature classic Granite, with easily ordered color palettes including Sierra and Almond Grove available.

• Versatile System Architecture: Seamlessly integrates with matching corner blocks and 24-inch wall caps for a cohesive, professional finish.

• Weather-Resistant Durability: Manufactured to withstand harsh New England freeze-thaw cycles without cracking or shifting.

Professional-Grade Retaining Wall Solutions

Building a functional and attractive landscape feature requires materials that perform under pressure. The Unilock Concord system features a split-rock textured face that mimics natural quarried stone, adding sophisticated texture to patios, pool decks, and sloped yards. Because it accommodates both simple garden borders and complex engineered walls, contractors rely on it for consistent stacking alignment, clean 90-degree corners, and secure coping.

Perfect For:

• Residential Slope Management: Securing backyard hillsides and preventing soil erosion around home foundations.

• Outdoor Living Upgrades: Building raised patio planters, seat walls, and structural outdoor kitchen bases.

• Contractor Commercial Projects: Large-scale commercial retaining walls requiring fast installation and high structural performance.

Frequently Asked Questions

How high can a Concord retaining wall be built? The Concord system is engineered to handle structural walls up to 16 feet high when installed correctly with proper geogrid reinforcement and base preparation.

Are corners and wall caps available to match? Yes. Complete your project seamlessly using matching Concord corner blocks and 24-inch wall caps for secure, polished coping.

What colors are stocked locally? Granite is kept as a standard stock item for immediate pickup or delivery. Sierra and Almond Grove color variations are available to order upon request.