Retaining Walls Direct stocks a full range of corner and joiner steel posts for retaining walls and fencing — including 90° corner posts, 45° corner posts, and inline joiner posts. All posts are hot-dip galvanised for long-term durability in Australian conditions and are designed to integrate seamlessly with our H-beam and C-channel post range.

Corner and joiner posts are essential for:

90° and 45° wall returns and changes in direction
Joining two wall runs at a boundary corner
Creating L-shaped, U-shaped, or terraced retaining wall layouts
Maintaining structural continuity at wall junctions

Available in 100 Series, 150 Series, and 200 Series to match your wall's load requirements. View our full Steel Posts range for compatible H-beam and C-channel options, or use our Steel Post Sizing Guide to confirm the right series for your project. Contact our team for trade pricing and bulk orders.

For walls over 1m or at boundary junctions, always consult a qualified structural engineer and check local council requirements.

Dy-Mark Spot Marking Paint 350g

Geo Matting | Geotextile Fabric for Retaining Wall Drainage

Ag Pipe 100mm x 20m | Slotted & Socked Drain Coil

Galvanised Steel Post Caps

Galvanised Steel Fence Bracket Kit

Builders Line Nylon Pink 100m

Corner & Joiner Posts