Optimum Onyx Block 2 Bar Concrete Sleeper

What It Is

Optimum Onyx Block 2‑Bar Concrete Sleeper is a premium, reinforced concrete element for robust retaining walls and landscape features. It combines a natural rock-face block pattern with a modern, sealed onyx finish—perfect for adding both style and structural integrity to outdoor spaces. 

Key Features

• Natural Block Pattern Design: Rock-face texture with elegant sealed onyx color and subtle shine.
• Reinforced Strength: Built with 2 × N12 reo steel bars and high-grade concrete (55–60 MPa) for durability. 
• Multiple Lengths: Available in 1.6 m, 2.0 m, and 2.4 m, each 200 mm high × 75 mm thick.
• Long Design Life: Engineered for a minimum 60-year lifespan—termite-resistant with low maintenance.

Benefits

• Rock-Solid Durability: High-strength concrete and steel reinforcement ensure structural reliability over decades.
• Aesthetic Elegance: The onyx-block style adds a refined, contemporary look to any garden or yard.
• Low Maintenance: Sealed surface resists weathering, termites, and the elements.
• Versatile Uses: Ideal for straight or high retaining walls, raised garden beds, or steps.

Landscape Ideas

• Contemporary Retaining Walls: Pair with dark steel posts and minimalist plantings for a sleek, insulated design.
• Raised Planter Beds: Create defined garden beds that complement modern landscaping schemes.
• Terraced Gardens: Step sleeper lengths to craft layered garden such as flowing levels in sloping areas.
• Feature Edges: Use as border elements around patios or pathways to anchor outdoor entertaining zones.

How to Use It

1. Prepare a level, compacted base or concrete footing for the initial row.
2. Install sleepers using galvanized H‑ or C‑steel posts set at recommended intervals.
3. Stack successive rows, staggering joints for structural interlock and visual appeal.
4. Ensure proper drainage behind the wall—use geotextile wrap and gravel backfill.
5. Finish top row seamlessly; seal joints if required to match aesthetic.

Coverage Example

• 1× 2.0 m sleeper spans approximately 2.0 m of wall length, standing 200 mm tall.
• For a 10 m wall: ~5 pieces (rounded) per row.
• Two rows (400 mm high) require ~10 sleepers; three rows (~600 mm) require ~15 sleepers.
• Add approx. 20% for cuts and waste depending on layout.

Delivery and Pickup Options

We make it easy to get Optimum Onyx Block 2‑Bar Concrete Sleeper for your project:

Pickup: Bring your trailer or ute, and we’ll load it for you on‑site.
Delivery: Available across South East Queensland, with clear freight rates displayed during checkout.

Elevate Your Landscape with Optimum Onyx Block Sleeper
Whether building high retaining walls, stylish planters, or defining outdoor features, this 2‑Bar reinforced, sealed onyx concrete sleeper adds strength, style, and longevity to suit contemporary and modern designs. Order today to transform your outdoor space!