Catalogue

H Posts

H posts are the galvanised steel posts that sit between sleepers in a concrete sleeper retaining wall. Each post has a channel on both sides, so it joins the straight middle panels of the wall. Select the series to suit your sleeper thickness, choose from the lengths in the range, and add your quantity to the cart.

Shop by type

Shop H Posts by type

All steel postsGalvanised steel H, C and corner posts to hold your sleepers.Shop All steel posts → 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 →

2 products

Material not listed?

Tell us what the job needs.

Send a drawing or product schedule with sizes and quantities so the team can review your list.

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Prices include GST. Freight calculated separately.

Not sure which H Posts (Joiners) you need?

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

Replies 7am to 6pm

Text 0420 120 105 Call 1300 211 390

Hot dipped galvanised

Protection against corrosion for steel set in the ground.

Strength

Steel retaining wall posts are beams designed to carry the load from the sleepers into the footing.

Durability

Durable galvanised steel does not rot and is not eaten by termites.

In stock

Stocked lengths are usually delivered in 1–5 business days.

Choose the right product

How to choose H posts.

The series must be compatible with your sleeper: the sleeper thickness has to suit the channel. The post length is your wall height plus the footing depth in your design. Verify both before you order, as retaining wall steel posts are supplied to size.

Retaining wall calculator
Your wallWhat to chooseNote
Sleeper thicknessThe post series that fitsThe sleeper must slide into the channel
Wall heightPost length = height + footing depthFrom your wall design
Ends and cornersC posts and corner postsH posts are for the run between
Fence above the wallAdd fence bracketsCheck the design allows for the fence load

Post size, spacing and footing depth come from your wall design. In Queensland, walls over 1m high, or walls that support a load, generally need an engineer's design and council approval. Ask us for the supplier's engineering, which lists the Australian Standards it was designed to.

Complete the job

Everything else the job needs, in the same order.

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 → 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 →

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

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 is an H post?

An H post is a steel section shaped like the letter H, manufactured from structural steel and hot dipped galvanised. It sits between sleepers in a straight run, holding a sleeper on each side, while C posts finish the ends.

Do H posts have pre drilled holes?

Standard posts are plain. Where a post is pre drilled for fence brackets, the product says so. If you need pre drilled holes, get in touch before you order and our team will check what options the supplier has.

Can H posts be used with timber sleepers?

They are made for concrete sleepers. Timber sleepers can be used in the same posts if the thickness fits the channel, but timber will rot long before the steel does. Check with your wall designer that the build is suitable.

Is installation easy?

Easy installation depends on setting out well. Dig the holes, install each post plumb in concrete, and let it cure. The posts are then ready for the sleepers. On a larger project, a contractor with an auger will save time.

How do pricing and delivery work?

Pricing on this website includes GST. Add the product to your cart and send it as a quote, and we review it and confirm the delivery date before you pay. Posts are delivered to site. Pickup is offered on some products. We can assist with quantities if you send the wall size.

Do you deliver to Melbourne?

Not yet. We deliver across South East Queensland, and we do not yet deliver to Victoria. Steel posts for Melbourne and Sydney are planned. For now, we can support orders in Queensland only.

Shop by location

H Posts delivered near you

Guides

Know before you build