Premium Timber Sleepers for Retaining Walls

Welcome to your trusted source for high-quality timber sleepers. At Retaining Wall Supplies, we provide a diverse range of timber sleepers suitable for a variety of uses, from constructing sturdy retaining walls to creating beautiful garden features.

Boost your outdoor space with our Treated Pine Timber Sleepers H4 CCA. Available in a range of sizes from 1.8m to 3.0m and 200x75mm or 200x100mm in thickness, these sleepers are kiln-dried before treatment for consistent quality. Treated to CCA H4 standards, they’re protected against decay, termites, and borers, making them ideal for in-ground use. Our Timber Sleepers are cost-effective and easy to install, perfect for retaining walls, garden edging, and steps.

Shop now for a rustic and durable addition to your outdoor project.

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Premium Timber Sleepers for Retaining Walls

Heavy-Duty Treated Pine Timber Sleepers H4 CCA (100mm)
Price range: $33.53 through $55.51 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
Premium Timber Sleepers for Retaining Walls

Treated Pine Timber Sleepers H4 CCA (75mm)
Price range: $25.23 through $42.05 inc. GST Select options This product has multiple variants. The options may be chosen on the product page

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Treated Timber Sleepers – Built for Australian Conditions

Our treated pine timber sleepers are a versatile, natural-looking solution for building retaining walls, raised garden beds, garden edging, and outdoor steps. Designed for strength and durability, they’re ideal for homeowners, landscapers, and tradies looking for a low-maintenance, budget-friendly retaining wall material.

Treated to CCA H4 standards, these sleepers offer long-term protection against termites, fungal decay, and ground moisture, making them perfect for in-ground use across Victoria’s varied site conditions. Whether you’re after a clean, kiln-dried finish or a rustic rough-sawn texture, we’ve got options to suit every project and aesthetic.

Available Sizes, Finishes & Applications

Choose from lengths of 1.8m to 3.0m and standard dimensions of 200x75mm or 200x100mm, stocked and ready for pickup or delivery. All timber is kiln-dried prior to treatment to help minimise movement, splitting, or warping after installation.

Timber sleepers are a great alternative to concrete, especially for lighter retaining walls, DIY landscaping, or garden edging projects where a natural aesthetic is preferred. They’re easy to cut, drill, and stack — making them especially suited for weekend projects and fast installs.

Pickup is available from our Melbourne locations in Hallam and Dandenong South, with fast delivery to nearby suburbs and regional areas. We also supply timber sleepers to Brisbane, Sydney, and other parts of QLD and NSW.