The 100mm heavy duty concrete sleeper is the structural specification for retaining walls that go beyond standard residential requirements — walls over 1.2m, driveway retaining walls with vehicle surcharge, tiered wall systems, and all engineer-specified designs. Where a 75mm sleeper reaches its structural limit, the 100mm delivers the additional section depth and mass needed to handle higher lateral earth pressures safely and in compliance with AS 4678-2002 Earth Retaining Structures.
With 40+ years of hands-on retaining wall experience across Australia, we supply 100mm heavy duty sleepers to homeowners, landscapers, builders, and civil contractors across Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, and the Gold Coast.
100mm sleepers must be paired with H-Beam (UC) steel posts. C-Channel posts are not appropriate for 100mm sleepers or walls over 1.2m. See our guide: H-Beam vs C-Channel — Which Do You Need?
Walls over 1.0m require approval in most Australian states. All walls must comply with AS 4678-2002. See our Retaining Wall Regulations — State-by-State Guide.
Delivered direct to your site across Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Gold Coast, and regional Australia. Get a free quote with delivery cost to your address.
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