{"product_id":"galvanised-steel-c-posts-150mm-150pfc","title":"Galvanised Steel C Posts – 150mm 150PFC","description":"\u003ch2\u003eGalvanised Steel C Posts – 150mm 150PFC\u003c\/h2\u003e\n\n\u003cp\u003eGalvanised Steel C Posts – 150mm 150PFC are heavy-duty C-channel retaining wall posts designed for concrete sleeper retaining wall systems where a stronger channel post is required. Also known as 150PFC posts or 150mm Parallel Flange Channel posts, they are commonly used for wall ends, single-sided sleeper support, boundary retaining walls, deeper footings, and retaining wall sections where a larger C-channel profile is preferred over a lighter 100PFC post.\u003c\/p\u003e\n\n\u003cp\u003eThe galvanised steel finish helps protect the post from corrosion, soil moisture, weather exposure, termites, insects, and fire. Compared with timber retaining wall posts, galvanised 150PFC steel posts provide a stronger, more durable, and longer-lasting support option for reinforced concrete sleeper retaining walls.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Galvanised steel C post for concrete sleeper retaining walls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel section:\u003c\/strong\u003e 150PFC, also known as 150mm Parallel Flange Channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfile:\u003c\/strong\u003e Heavy-duty C-channel retaining wall post\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Galvanised steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Concrete sleeper retaining wall systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Wall ends, end posts, single-sided retaining wall support, boundary walls, and suitable low to medium retaining wall applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable lengths:\u003c\/strong\u003e 2000mm, 2400mm, 2800mm, 3200mm, 3600mm, 4000mm, 4400mm, 4800mm, 5200mm, 5600mm, and 5800mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Strong, durable, termite resistant, fire resistant, weather resistant, and corrosion resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible wall systems:\u003c\/strong\u003e Concrete sleeper retaining walls using suitable sleeper thickness, footing design, drainage, and post spacing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Lengths\u003c\/h3\u003e\n\n\u003cp\u003e150PFC galvanised C posts are available in longer lengths to suit retaining wall designs that require deeper footing embedment, stronger end support, and greater allowance for wall height. The total post length must allow for both the visible wall height above ground and the required in-ground embedment depth below ground.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003ePost Length\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eTypical Use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e2000mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eLow to medium retaining walls where a heavier C-channel post is required and footing embedment must be allowed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e2400mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eResidential retaining walls, end post applications, and boundary walls requiring additional post depth.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e2800mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eMedium wall sections where stronger single-sided support and deeper footing embedment are needed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e3200mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eStepped retaining walls, sloping sites, and projects where wall height or soil conditions require longer posts.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e3600mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eHeavy-duty C-channel applications where extra embedment depth is required for lateral resistance.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e4000mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eLonger retaining wall posts for deeper concrete footings and more demanding residential wall designs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e4400mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eEngineer-specified retaining wall layouts where a longer 150PFC post is required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e4800mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eHigher retaining wall sections, heavy clay sites, and walls requiring increased footing depth.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e5200mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eDemanding wall layouts where longer steel posts help provide deeper embedment and improved support.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e5600mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eHeavy-duty retaining wall applications requiring long post length and strong footing allowance.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003e5800mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eLongest listed 150PFC option for deep embedment, stepped sites, and engineer-approved wall designs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTechnical Overview\u003c\/h3\u003e\n\n\u003cp\u003eA 150PFC C post is a larger Parallel Flange Channel section used where a stronger C-channel post is required for a concrete sleeper retaining wall. The channel profile supports sleepers from one side of the post, making it a practical option for wall ends, boundary terminations, and single-sided retaining wall support.\u003c\/p\u003e\n\n\u003cp\u003eThe 150PFC section provides more steel depth and stiffness than a 100PFC C post, making it better suited to applications where wall height, soil load, footing depth, or engineering requirements call for a heavier channel section. It can be a useful choice for projects where a C post is still the correct post type, but a lighter 100PFC section does not provide enough capacity.\u003c\/p\u003e\n\n\u003cp\u003ePost selection should always consider retained height, soil type, drainage, footing size, post spacing, surcharge load, and whether the wall is supporting a fence, driveway, structure, or sloping ground above. For high-load wall sections or continuous middle wall bays, an H-beam post may be more suitable than a C-channel post.\u003c\/p\u003e\n\n\u003ch3\u003eWhen to Use 150PFC C Posts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall ends:\u003c\/strong\u003e Use 150PFC C posts where concrete sleepers terminate at the start or end of a retaining wall run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-sided sleeper support:\u003c\/strong\u003e The C-channel profile supports sleepers from one side of the post.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavier C-channel applications:\u003c\/strong\u003e Suitable where a larger C post is required instead of a lighter 100PFC post.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoundary retaining walls:\u003c\/strong\u003e Useful for fence-line and boundary walls where stronger end support is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger footing embedment:\u003c\/strong\u003e Available in longer lengths to suit deeper concrete footing requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineer-specified designs:\u003c\/strong\u003e Use 150PFC posts where the retaining wall design nominates a 150mm Parallel Flange Channel section.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e150PFC vs 100PFC C Posts\u003c\/h3\u003e\n\n\u003cp\u003eThe 100PFC C post is generally used for lower retaining walls, smaller garden walls, and lighter-duty end post applications. The 150PFC C post is the heavier option and is better suited to projects where the wall requires a larger channel profile, longer post length, greater footing embedment, or stronger single-sided support.\u003c\/p\u003e\n\n\u003cp\u003eIf the wall is low, soil conditions are stable, and loads are minimal, a 100PFC post may be suitable. If the wall is higher, the footing needs to be deeper, or the design calls for a larger channel section, 150PFC is the stronger C-post option.\u003c\/p\u003e\n\n\u003ch3\u003eC Posts vs H Posts\u003c\/h3\u003e\n\n\u003cp\u003eC posts and H posts are used for different parts of a concrete sleeper retaining wall. A C post holds sleepers from one side only, making it suitable for wall ends and selected single-sided applications. An H post holds sleepers on both sides, making it the correct post type for middle wall bays where the wall continues from one bay into the next.\u003c\/p\u003e\n\n\u003cp\u003eFor lower walls and end-post locations, a C-channel post may be the correct and most efficient choice. For taller walls, reactive clay sites, surcharge loads, driveway-adjacent walls, or continuous middle wall runs, H posts are generally preferred because they provide greater stiffness and support.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Considerations\u003c\/h3\u003e\n\n\u003cp\u003eCorrect installation is critical for retaining wall performance. 150PFC C posts should be set plumb or to the required back lean, spaced to suit the selected concrete sleeper length, and embedded into concrete footings sized for the wall height, soil conditions, and surcharge load.\u003c\/p\u003e\n\n\u003cp\u003eThe footing must be deep and wide enough to resist lateral earth pressure from the retained soil. As wall height increases, the required post length, footing depth, footing diameter, and concrete volume generally increase as well. Where engineering drawings are supplied, always follow the specified post size, post spacing, footing depth, and concrete strength.\u003c\/p\u003e\n\n\u003cp\u003eDrainage should always be installed behind the wall. A suitable retaining wall drainage system normally includes free-draining aggregate, geotextile fabric, and slotted agricultural pipe at the base of the wall discharging to a legal outlet. Poor drainage can increase hydrostatic pressure behind the sleepers and may lead to movement, leaning, cracking, or wall failure.\u003c\/p\u003e\n\n\u003ch3\u003eBenefits of Galvanised 150PFC C Posts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty C-channel profile:\u003c\/strong\u003e Provides stronger single-sided sleeper support than lighter C-post sections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanised protection:\u003c\/strong\u003e Helps protect the steel from corrosion, soil moisture, and outdoor exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong steel construction:\u003c\/strong\u003e Provides a more durable post option than timber in ground-contact retaining wall applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTermite resistant:\u003c\/strong\u003e Steel is not affected by termites, borers, or other insects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire resistant:\u003c\/strong\u003e Galvanised steel provides better fire resistance than timber retaining wall posts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong length range:\u003c\/strong\u003e Available in longer options to suit deeper footings, stepped sites, and more demanding retaining wall layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow maintenance:\u003c\/strong\u003e No timber treatment, staining, or regular replacement is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Products\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcrete sleeper range:\u003c\/strong\u003e \u003ca href=\"\/collections\/concrete-sleepers\"\u003eConcrete Retaining Wall Sleepers\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard C-channel option:\u003c\/strong\u003e \u003ca href=\"\/products\/galvanised-steel-c-posts-100mm-100pfc\"\u003eGalvanised Steel C Posts – 100mm 100PFC\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard H post option:\u003c\/strong\u003e \u003ca href=\"\/products\/galvanised-steel-h-posts-100mm-100uc-uc-14-8\"\u003eGalvanised Steel H Posts 100mm 100UC – UC 14.8\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty H post option:\u003c\/strong\u003e \u003ca href=\"\/products\/galvanised-steel-h-posts-150mm-uc23-4\"\u003eGalvanised Steel H Posts 150mm UC23.4\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH post with reo option:\u003c\/strong\u003e \u003ca href=\"\/products\/galvanised-steel-h-post-with-reo-100uc\"\u003eGalvanised Steel H Post with Reo | 100UC\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner and end post option:\u003c\/strong\u003e \u003ca href=\"\/products\/corner-l-post-joiner-end-post-for-retaining-walls\"\u003eCorner, L-Post, Joiner and End Posts for Retaining Walls\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrainage product:\u003c\/strong\u003e \u003ca href=\"\/products\/drainage-kit-for-retaining-walls\"\u003eDrainage Kit for Retaining Walls\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFabric and wall protection:\u003c\/strong\u003e \u003ca href=\"\/products\/geotextile-fabric-wall-liner-for-retaining-walls\"\u003eGeotextile Fabric and Wall Liner for Retaining Walls\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGuides and Resources\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePost comparison guide:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/how-to-choose-retaining-wall-post-c-channel-vs-h-beam\"\u003eHow to Choose the Right Retaining Wall Post: C-Channel vs H-Beam\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePost spacing guide:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/retaining-wall-post-spacing-guide\"\u003eRetaining Wall Post Spacing: How Far Apart Should Posts Be?\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFooting depth guide:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/retaining-wall-footings-depth-concrete\"\u003eRetaining Wall Footings: Depth, Size and Concrete Guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation guide:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/how-to-build-concrete-sleeper-retaining-wall\"\u003eHow to Build a Concrete Sleeper Retaining Wall\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrainage guide:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/retaining-wall-drainage-guide\"\u003eRetaining Wall Drainage Guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurcharge load guide:\u003c\/strong\u003e \u003ca href=\"\/blogs\/news\/what-is-surcharge-load-retaining-walls\"\u003eWhat Is a Surcharge Load? Why It Matters for Retaining Walls\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDelivery\u003c\/h3\u003e\n\n\u003cp\u003eGalvanised Steel C Posts – 150mm 150PFC are available in 2000mm, 2400mm, 2800mm, 3200mm, 3600mm, 4000mm, 4400mm, 4800mm, 5200mm, 5600mm, and 5800mm lengths. Delivery is available across Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Gold Coast, and regional Australia. \u003ca href=\"\/pages\/book-a-quote\"\u003eGet a free quote\u003c\/a\u003e for your retaining wall project.\u003c\/p\u003e\n","brand":"Retaining Walls Direct","offers":[{"title":"2000m","offer_id":52287815778584,"sku":null,"price":169.82,"currency_code":"AUD","in_stock":true},{"title":"2400m","offer_id":52287815811352,"sku":null,"price":203.78,"currency_code":"AUD","in_stock":true},{"title":"2800m","offer_id":52287815844120,"sku":null,"price":237.74,"currency_code":"AUD","in_stock":true},{"title":"3200m","offer_id":52287815876888,"sku":null,"price":271.71,"currency_code":"AUD","in_stock":true},{"title":"3600m","offer_id":52287815909656,"sku":null,"price":305.68,"currency_code":"AUD","in_stock":true},{"title":"4000mm","offer_id":52287815942424,"sku":null,"price":339.65,"currency_code":"AUD","in_stock":true},{"title":"4400mm","offer_id":52287815975192,"sku":null,"price":373.61,"currency_code":"AUD","in_stock":true},{"title":"4800mm","offer_id":52287816007960,"sku":null,"price":407.57,"currency_code":"AUD","in_stock":true},{"title":"5200mm","offer_id":52287816040728,"sku":null,"price":441.54,"currency_code":"AUD","in_stock":true},{"title":"5600mm","offer_id":52287816073496,"sku":null,"price":475.5,"currency_code":"AUD","in_stock":true},{"title":"5800mm","offer_id":52287817220376,"sku":null,"price":492.49,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/5595\/3688\/files\/150PFC.jpg?v=1781578873","url":"https:\/\/www.retainingwallsdirect.com.au\/products\/galvanised-steel-c-posts-150mm-150pfc","provider":"Retaining Walls Direct","version":"1.0","type":"link"}