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Optimum Onyx Timber 2 Bar Concrete Sleeper

Optimum Onyx Timber 2 Bar Concrete Sleeper

Regular price $51.55 AUD
Regular price $0.00 AUD Sale price $51.55 AUD
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What It Is
Optimum Onyx Timber 2‑Bar Concrete Sleeper is a premium, reinforced concrete landscape sleeper that mimics the natural look of timber with a sleek dark onyx finish. Engineered for hard-wearing performance, it incorporates two N12 reo steel bars and high-strength concrete for long-lasting retaining walls or garden features. 

Key Features

  • Timber-Look Onyx Finish: Rustic texture with dark stain and sealed surface for a timber appearance without the maintenance. 
  • 2× N12 Steel Reinforcement: Embedded steel bars enhance load-bearing capacity for walls up to 2.4 m high. 
  • High-Strength Concrete (55–60 MPa): Exceeds minimum Australian structural standards. 
  • Longevity Guaranteed: Designed for 60-year service life, resistant to termites and weather. 
  • Size Options: Available in 1.6 m, 2.0 m, and 2.4 m lengths (all 200 × 75 mm) with consistent sizing. 

Benefits

  • Natural Timber Look, Concrete Strength: Achieves the aesthetics of wood without warping, decay, or upkeep.
  • Robust Structural Capacity: Reinforced design handles up to 2.4 m high walls safely. 
  • Low Maintenance & Durable: Sealed finish resists fading, moisture, termites, and UV.
  • Cost-Effective Design: Durable lifespan reduces need for replacement vs. timber.
  • Versatile Applications: Great for retaining walls, terraces, planters, and edging.

Landscape Ideas

  • Contemporary Garden Walls: Onyx sleepers with steel posts form sleek, dark borders in modern yards.
  • Raised Beds: Use 2-bar sleepers for elevated garden beds that blend natural tones with structure.
  • Terraced Slopes: Stack into terraces for slope stabilization and visual interest.
  • Feature Pathway Edging: Define footpaths with contrasting dark timber-look sleepers.

How to Use It

  1. Prepare a solid base row with compacted aggregate or concrete footings.
  2. Install galvanised H‑ or C‑steel posts at intervals suitable for wall height.
  3. Slot each sleeper into the channel of the posts, staggering joints.
  4. Backfill drainage behind the wall, add geotextile and gravel as needed.
  5. For multi-row walls, ensure each level is levelled before stacking the next.

Coverage Example

  • A 10 m long wall at 400 mm high (2 rows): approx. 5 sleepers per row → 10 units total.
  • Include 10–15% extra for connections, cuts, and waste.

Delivery and Pickup Options
We make it easy to get Optimum Onyx Timber 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.

Timber Aesthetics, Concrete Durability, Onyx Brilliance
Combine the rich timber look of onyx sleepers with the strength of reinforced concrete—designed to endure and elevate your landscape. Order today to enhance your outdoor space with style and strength!

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