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The galvanised steel 45° angle post is fabricated from two 100PFC C-channels factory-welded at 45 degrees — for wherever a retaining wall changes direction on a diagonal. Ideal for angled boundaries and irregular block shapes. Hot-dip galvanised to AS/NZS 4680, in 800–2400mm. Australian-made, delivered Australia-wide by Retaining Walls Direct.
Written and product-checked by the Retaining Walls Direct team — supplying steel-post retaining wall systems across Australia. Last updated: June 2026.
The angle post accepts concrete sleepers from two 45° directions for a clean diagonal change — common on angled property boundaries. Use with H-beam middle posts and C-channel end posts to complete the wall.
Post length = retained height above ground plus embedment (roughly double the wall height as a starting guide; confirm by engineering). See the steel post sizing guide.
| Section | 2 × 100PFC welded at 45° |
|---|---|
| Role | Angle post — accepts sleepers from two 45° directions |
| Lengths | 800 – 2400mm |
| Fits | 75mm & 80mm concrete and timber sleepers |
| Galvanising | Hot-dip galvanised to AS/NZS 4680 |
| Compliance | AS 4678-2002 · factory welded (not site-welded) |
| Brand | Retaining Walls Direct (Australian-made) |
Add caps, brackets & hardware and drainage — a drainage kit, ag pipe and geo matting. See how to build a concrete sleeper retaining wall.
For walls over 1.0m, reactive clay or surcharge loads, consult a structural engineer (engineered walls over 1 metre) and plan drainage.
Send your postcode and quantities for a freight quote, or contact the team.
When do I need a 45° angle post?
Wherever the wall changes direction on a 45° diagonal — angled boundaries and irregular blocks.
Is it welded on site?
No — factory-welded for structural integrity, then hot-dip galvanised.
What sleepers does it fit?
75mm and 80mm concrete and timber sleepers.
Can you deliver to me?
We deliver across most of Australia. Send your postcode and quantities for a freight estimate.
