Retaining Wall Steel Posts
Shop galvanised steel posts for concrete sleeper retaining walls, cut to size and ready for installation.
Our Melbourne range includes 100UC H-Beams and 100PFC C-Channels in our standard series, along with a full heavy-duty range including 150UC and 200UC posts for taller or engineered retaining wall builds.
Choose between welded and non-welded formats depending on sleeper thickness, wall height, and structural requirements. All steel posts are hot-dip galvanised and manufactured to comply with AS/NZS 4680.
Compatible with 40–60MPa concrete sleepers and suitable for retaining walls up to 4.5m high (subject to engineering and site conditions).
Pickup is available from Dandenong South and Officer, with fast delivery across Melbourne, regional Victoria, and Australia-wide.
Browse our steel post range below or call 0485 856 986 for expert advice and a fast quote.
Showing 1–12 of 15 results
150 Heavy Duty Steel Series, H Beam Steel (150), Retaining Wall Steel Posts
Price range: $234.01 through $754.05 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
150 Heavy Duty Steel Series, 45 Degree Corner, Retaining Wall Steel Posts
Price range: $306.90 through $1,023.00 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
100 Standard Steel Series, 45 Degree Corner Channel Steel Post (100), Retaining Wall Steel Posts
Price range: $86.63 through $288.75 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
150 Heavy Duty Steel Series, 90 Degree Corner, Retaining Wall Steel Posts
Price range: $351.12 through $1,003.20 inc. GST Select options This product has multiple variants. The options may be chosen on the product page100 Standard Steel Series, 90 Degree Corner Joiner Steel (100), Retaining Wall Steel Posts
Price range: $80.69 through $268.95 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
100 Standard Steel Series, H Beam Steel for Retaining Walls (100), Retaining Wall Steel Posts
Price range: $43.65 through $145.50 inc. GST Select options This product has multiple variants. The options may be chosen on the product page100 Standard Steel Series, C Channel Steel (100), Retaining Wall Steel Posts
Price range: $33.66 through $112.20 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
150 Heavy Duty Steel Series, H Beam Steel (150), Retaining Wall Steel Posts
Price range: $170.10 through $567.01 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
150 Heavy Duty Steel Series, C Channel Steel (150), Retaining Wall Steel Posts
Price range: $131.08 through $436.92 inc. GST Select options This product has multiple variants. The options may be chosen on the product page150 Heavy Duty Steel Series, H Beam Steel (150), Retaining Wall Steel Posts
Price range: $298.07 through $960.44 inc. GST Select options This product has multiple variants. The options may be chosen on the product page200 Premium Strength Series, Retaining Wall Steel Posts
Price range: $814.00 through $1,424.50 inc. GST Select options This product has multiple variants. The options may be chosen on the product page200 Premium Strength Series, Retaining Wall Steel Posts
Price range: $418.00 through $731.50 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
Showing 1–12 of 15 results
Steel Posts in Melbourne
Steel retaining wall posts provide the structural backbone for retaining walls built with concrete sleepers, timber sleepers, or masonry infill. At Retaining Wall Supplies, we stock a full range of galvanised steel posts in Melbourne engineered for strength, corrosion resistance, and long-term performance.
Unlike timber posts, steel posts are immune to rot, termites, and decay, making them a durable, low-maintenance option for retaining wall projects across Melbourne and Victoria.
Retaining Wall Steel Posts – Cut to Size, Built for Strength
Our retaining wall steel post range includes H-section (UC), C-section (PFC), and corner posts to suit straight runs, corners, and stepped wall designs. All posts are hot-dip galvanised and manufactured to comply with AS/NZS 4680 for corrosion protection.
Steel posts are available in standard lengths from 900mm to 3000mm and can be cut to size to suit your wall height, embedment depth, and engineering requirements.
- 100UC and 150UC H-beam steel posts
- 100PFC and 150PFC C-channel steel posts
- Corner and end posts for clean wall terminations
- Welded and non-welded options available
Compatibility with Concrete Sleepers
Our steel posts are designed to work with the full concrete sleeper range, including 40MPa, 50MPa, and 60MPa sleepers. Correct post selection should account for sleeper thickness, wall height, soil conditions, drainage design, and surcharge loads above the wall.
Steel post spacing, embedment depth, and footing size should always be confirmed by a qualified builder or engineer, particularly for taller or load-bearing retaining walls.
Pickup and Delivery Across Melbourne & Victoria
Steel posts are available for pickup from Dandenong South and Officer, or can be delivered directly to site. We offer fast delivery across Melbourne and regional Victoria, with the option to bundle steel posts and concrete sleepers into a single delivery.
Steel posts are also supplied to other regions, including Brisbane, Sydney, and Adelaide, with availability varying by location.
Installation & Retaining Wall Considerations
Steel retaining wall posts are suitable for both trade professionals and experienced DIY builders. Proper installation requires accurate post alignment, adequate footing depth, and effective drainage behind the wall to prevent hydrostatic pressure.
In Victoria, retaining walls over 1 metre in height may require engineering design and council approval. This page provides product information only and does not replace professional engineering advice.
Complete your retaining wall system with compatible concrete sleepers, under-fence plinths, and fence brackets for a fully integrated build.
Need Help Choosing the Right Steel Posts?
If you are unsure which steel post size or profile suits your retaining wall, send your wall height and length through the enquiry form or contact us for guidance. You can also call 0485 856 986 to speak with our team.
