Catalogue

Steel Posts

Hot dip galvanised steel posts for concrete sleeper retaining walls. Each post is manufactured from structural steel and galvanised for corrosion protection in the ground, in H, C and corner profiles for residential and commercial walls. Choose your post, add it to your cart with your sleepers, and order both for one delivery, or split the delivery and order the steel first.

Shop by type

Shop Steel Posts by type

H posts (joiners)Sit between sleepers along a straight run and hold a sleeper on each side.Shop H posts (joiners) → C posts (ends)Finish the wall at each end, or at a step in height.Shop C posts (ends) → Corner postsTurn the wall through 90 or 45 degrees with a single post.Shop Corner posts → Reo postsH posts with welded reinforcing bar for taller or loaded walls.Shop Reo posts →

6 products

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Prices include GST. Freight calculated separately.

Not sure which Steel Posts you need?

Text us your wall height and length, or a photo of your site, and we'll point you to the right product.

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Hot dip galvanised steel

Protection against corrosion for posts set in the ground.

Low maintenance

Steel does not rot and does not attract termites.

Heavy duty options

Reo posts and larger sections for taller walls, to an engineer's design.

Residential and commercial

Ideal for garden walls through to boundary and site walls.

Choose the right product

Which steel post goes where.

A sleeper wall uses three post shapes. The series you need depends on your sleeper thickness, and the length depends on your wall height and the requirements of your footing design.

Retaining wall calculator
PostWhere it goesWhat it holds
H post (joiner)Between sleepers along a straight runA sleeper on each side
C post (end)At each end of the wall, or at a step in heightA sleeper on one side
Corner postWhere the wall changes directionSleepers from both directions
Reo postTaller or loaded wallsHeavy duty applications, to an engineer's design

Post size, length and footing depth are set by your wall design. In Queensland, walls over 1m high, or walls carrying a load, generally need an engineer's design and council approval.

Complete the job

Everything else the job needs, in the same order.

Concrete SleepersPlain and patterned sleepers in 75–80mm and 100mm thicknesses.Shop Concrete Sleepers → Fence BracketsBolt a Colorbond or timber fence to your retaining wall posts.Shop Fence Brackets → Post CapsFinish the top of your posts.Shop Post Caps → Retaining Wall DrainageAg pipe, geofabric and drainage materials for behind the wall.Shop Retaining Wall Drainage →

Order planning

Delivery, lead times and logistics

Delivery

Steel posts are long, heavy loads delivered by truck. Tell us about narrow access, steep driveways or overhead obstructions. Unloading equipment is not automatically included.

Lead time

Steel posts are stocked lines. Usually delivered in 1–5 business days. We confirm the date with you before you pay.

Freight is priced to your delivery suburb for most metro areas, or will be confirmed with you before payment.

Delivery and pick up options are shown on each product. Wait for our confirmation before arranging transport or attending for pick up.

Questions

Before you order.

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What are these steel posts used for?

These are steel posts for retaining walls. They are set in concrete in the ground, and concrete sleepers slot between them to hold back soil. They suit residential and commercial applications, from garden walls to boundary walls.

Why choose hot dip galvanised steel?

Hot dip galvanising coats the whole post in zinc after it is made, which protects the steel from corrosion in the ground. Galvanised steel posts need very little maintenance, and steel does not rot or attract termites, so a well-built wall lasts for years.

Can I use these posts for fencing or gates?

They are designed for retaining walls, not as fence or gate posts. For fencing above a wall, fence brackets are steel plates that bolt to the post so a Colorbond or timber fence can sit on top. Gates need their own posts, which we do not stock.

How do I install steel posts?

Dig a hole for each post, stand the post plumb and set it in concrete, then slot the sleepers in once the concrete has cured. Hole size and depth come from your wall design. An engineer's design is generally required for walls over 1m high.

What is a heavy duty post?

Heavy duty and reo posts are larger steel sections, some with welded reinforcing bar, for taller walls and commercial jobs. They are ordered to suit an engineer's design.

Do you deliver steel posts to Melbourne or Sydney?

Not yet. We deliver across South East Queensland, and Melbourne and Sydney are planned. Contact us if your project is outside our delivery area and we will tell you what we can offer.

How do I get a price for a full wall?

All products show their price including GST. Add posts and sleepers to your cart, or email your list through our contact page and we will quote the lot. The retaining wall calculator is ideal for working out quantities.

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Guides

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