Corten Retaining Wall Steel Post How To

corten retaining wall partial construction

Retaining panel sizes & prices

Corten retaining wall system with hidden fixings and is finished off with a rounded corten capping

corten retaining wall back view with support posts set in concrete

Corten steel angle posts set in concrete pile holes

Our system is ideal for retaining walls 600mm up to 1200mm
We are also able to supply taller or shorter retaining walls if required using the same system.

corten retaining wall braced while concrete sets

Corten wall braced while concrete sets

All parts in our corten retaining wall system come ready to install, with no special tools required
The steel is either screwed or bolted together

corten steel post panel detail

Corten post ready for next panel to be screwed on

This is an engineer designed system, using the strong steel posts set in concrete pile hole construction method.
This gives you a narrow retaining wall, ideal for where space is limited.

corten panels 1200mm x 750mm

Click for Retaining Wall Set Outs

Corten retaining walls need good drainage behind them

90deg external corner joiner

The modular layout has over 50 different panel sizes to choose from, this enables you to build corten retaining walls that suit almost any location.

corten capping bracket to post detail

Secure capping brackets to posts with TEK screws

corten capping bracket to post detail

Cappings come with M10 nuts and bolts to connect to brackets

capping brackets added to posts

Capping bracket added to post

How to install capping video

corten capping unweathered

Capping 215mm x 63mm

cortening retaining wall draiinage

Retaining wall drainage info

A well built corten retaining wall with proper drainage will easily last 30-50yrs plus, depending on the environment

corten parts to make rounded corner

All part predrilled for easy assembly

Our corten retaining wall system is DIY friendly and all parts come pre drilled ready to install with no special tools required. You should not need to do any cutting or welding of the corten.

The steel is either TEK screwed or bolted together

preformed corten curved sections

Internal and external curved pieces available

Our corten retaining wall system is DIY friendly and all parts come pre drilled ready to install with no special tools required. You should not need to do any cutting or welding of the corten.

corten angle post lengths

Email us

Please email us your requirements, be sure to attached pics and sketches
We can then help you with post and panel sizes required for your retaining wall

info@cor-ten-steel.co.nz

long low corten retaining wall

Corten retaining wall with capping

Corten steel requires no maintenance, as over time it develops a crystalline rust patina that dramatically reduces further corrosion

Posts set in concrete pile holes

Generally the retaining wall pile hole depth is equal to the height of the retaining wall. However in softer soils or walls supporting sloping ground, driveways, or buildings, the post and pile retaining wall method solves this by adjusting the post spacings and pile depths.

corten post dropped below top of retaining wall

Option to drop corten post below top panel

corten fence with temporary bracing

Temporary Braces

Corten support posts, with temporary timber bracing, before concrete is poured into pile holes

Temporary Braces

Corten support posts, with temporary timber bracing, at bottom of post. The corten steel posts have pre-drilled holes, making it easy to add the timber braces.

corten steel support posts with temporary support bracing

Temporary Braces

Corten support posts, with temporary timber bracing, at top of post. Remove bracing once concrete has set

corten retaining wall corner joiner detail

Back of corten coated with bitumen paint

Steel in contact with soil coated with Sika Blackseal Plus or equivalent

Corten Steel Care and Maintenance

Corten steel, also known as weathering steel, is a high tensile steel that forms a protective layer of rust or patina when exposed to the elements. This patina shields the steel from further corrosion, giving it a characteristic reddish-brown color.

To form this protective patina, corten steel needs repeated cycles of wetting and drying. If buried or otherwise prevented from experiencing these cycles, corten steel will not develop the patina and will rust at a similar rate to mild steel.

To extend the lifespan of corten steel, ensure all retaining walls have adequate drainage to prevent hydrostatic pressure buildup. Poorly drained retaining walls with saturated soils will shorten the lifespan of unprotected corten steel.

For this reason, it is recommended sealing the insides of planters and the backs of retaining walls made of corten steel with a bitumen sealer.

By following these simple care and maintenance tips, you can ensure that your corten steel structures will last for many years to come.

Corten panel ready for next post to be screwed on

To build the wall you start at one end and continue construction by adding panels and posts
Hole already dug for next post

corten square end panel

Corten square end panel

To build the wall you start at one end and continue construction by adding panels and posts
Hole already dug for next post

corten retaining wall steps construction

Installing corten capping

corten terraced retaining walls

Any questions email us

We work with landscapers, architects, engineers, and Diyers to provide corten retaining wall layouts that are easy to assemble, we provide these retaining wall layouts for free. Please contact us via email

info@cor-ten-steel.co.nz

corten panel assembly tools

Tools Needed

5/16th” (7.9mm) Nut driver
Variable speed drill
G clamps
Ratchet spanner
Tape measure
Drill extension bar (optional)

corten curved panels internal and external examples

Internal and external curved panels