Corten Retaining Wall Steel Post How To
Retaining panel sizes & prices
Corten retaining wall system with hidden fixings and is finished off with a rounded corten capping
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 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 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.
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.
Secure capping brackets to posts with TEK screws
Cappings come with M10 nuts and bolts to connect to brackets
Capping bracket added to post
How to install capping video
Capping 215mm x 63mm
Retaining wall drainage info
A well built corten retaining wall with proper drainage will easily last 30-50yrs plus, depending on the environment
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
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.
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
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.
Option to drop corten post below top panel
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.
Temporary Braces
Corten support posts, with temporary timber bracing, at top of post. Remove bracing once concrete has set
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
To build the wall you start at one end and continue construction by adding panels and posts
Hole already dug for next post
Installing corten capping
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
Tools Needed
5/16th” (7.9mm) Nut driver
Variable speed drill
G clamps
Ratchet spanner
Tape measure
Drill extension bar (optional)
