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The C-Channel Parallel Flange Channel (PFC) steel post is the standard residential specification for concrete sleeper retaining walls under 1.0m in stable, well-drained ground conditions. Lighter and more economical than H-Beam posts, C-Channel is the correct choice for low garden walls, boundary walls, and landscaping retaining walls where lateral earth pressure is low and drainage is good.
All C-Channel posts are hot-dip galvanised to AS/NZS 4680 for maximum corrosion resistance in Australian soil conditions, and manufactured to AS 4678-2002 Earth Retaining Structures. Delivered direct to your site, Australia-wide.
This is the most common question we get. The short answer: if you're on reactive clay or building over 1.0m, specify H-Beam. For everything else in stable ground under 1.0m, C-Channel is appropriate. See our full guide: H-Beam vs C-Channel Steel Posts — 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.
