About Retaining Walls Direct

Direct supplier of concrete sleepers, steel posts and drainage products — Australia-wide — ABN 98 351 143 900

Who We Are

Retaining Walls Direct is an Australian-owned direct supplier of concrete sleeper retaining wall materials. We supply concrete sleepers, galvanised steel posts, drainage products, and accessories to residential homeowners, licensed landscapers, and builders across every Australian state and territory — delivered by crane truck direct to site.

The business was co-founded by Lee Bradley and Carson Bradley, based in Charlestown NSW. Lee oversees supplier relationships, product sourcing, and technical specification. Carson handles sales, customer enquiries, and trade account management. Between them, they deal directly with the manufacturers who make our products — not through distributors or wholesalers — which is how we keep pricing competitive and product knowledge deep.

Our Suppliers

We source exclusively from two of Australia's most established concrete sleeper manufacturers:

• QPro (Brendale QLD) — manufacturer of high-strength concrete sleepers in charcoal, woodgrain, and smooth finishes. QPro products are manufactured and tested in Queensland, making them the go-to specification for Queensland and northern NSW projects.
• OSV (Dandenong VIC) — manufacturer of the Lonsdale, Blackwood, Hampton, McLaren, Kensington, and Ashwood branded sleeper ranges. Both Retaining Walls Direct and our main competitor retainingwallsupplies.com.au resell OSV stock under these exact finish names — so when you buy from us you are getting the same product, at a price matched to the market leader.

Both manufacturers batch-test their products and can provide compressive strength certificates on request. We do not stock unbranded or unverified concrete sleepers.

What We Supply

• Concrete sleepers — 40MPa, 50MPa, and 60MPa in standard (75mm), heavy duty (100mm), and extra heavy duty (120–150mm) profiles; 1800mm, 2000mm, 2400mm, and 3000mm lengths; all OSV finishes and QPro ranges
• Galvanised steel posts — 100UC H-beam, 150UC, 100PFC C-channel, corner posts, and end caps; hot-dip galvanised to AS/NZS 4680
• Drainage products — 100mm slotted ag pipe, 20mm drainage aggregate, geotextile fabric, and weep hole fittings
• Complete wall kits — sleepers, posts, and drainage bundled for common wall dimensions
• Hardware, brackets, and cleats
• Geotextile fabric and wall liners

How Our Pricing Works

We sell at a consistent margin on top of our direct supplier cost — the same formula used by the market leader in our category. There are no retailer markups layered on top. Freight is calculated and displayed at checkout before you pay, so you know the full cost before you commit. We do not add freight as a surprise after payment.

For trade accounts (licensed landscapers, builders, and contractors), we offer 12.5% off retail pricing, bringing our gross margin to 20% — a straightforward, consistent discount without tiered complexity. Call 1800 880 124 or email sales@retainingwallsdirect.com.au to set up a trade account.

Our Guides and Pricing Data

The pricing benchmarks, labour rates, engineering cost estimates, and project examples in our guides come from what the RWD team sees in the real market every week — our own supplier costs, freight rates from carriers we use, and labour benchmarks from licensed contractors we supply regularly. We are not republishing industry estimates or survey averages. All figures are reviewed and updated regularly.

• How Much Does a Retaining Wall Cost in Australia? (2026 Guide)
• Do I Need Council Approval for a Retaining Wall? (State-by-State)
• Concrete Sleeper Cost Guide Australia 2026
• Retaining Wall Cost Per Metre Australia 2026

Delivery Areas

We deliver to all Australian states and territories. Our core delivery areas are NSW, VIC, QLD, SA, and WA, with regular freight runs to ACT and TAS. Freight is calculated at checkout to your postcode — we ship from depots across eastern Australia to keep freight costs as low as possible.