AS 4678 Certified | Trade Accounts Welcome | 40+ Years Experience

AS 4678 Certified | Trade Accounts Welcome | 40+ Years Experience

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

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Retaining Wall Advice

How to set a retaining wall steel post in concrete — mixing, pouring, levelling and cure time before backfilling or loading the wall.

Rapid set, post mix or standard concrete — which suits your retaining wall post footings? Cure time, strength and cost compared.

What concrete do you need to set retaining wall posts? Rapid set vs standard post-hole concrete, minimum strength, and how much you'll need. AU guide.

Correct steel post spacing and embedment depth for retaining walls: standard centres, the one-third embedment rule, and how soil type and surcharge change the numbers.

H-beam (UC) and C-channel (PFC) steel posts explained side by side: strength, installation and how to choose the right profile for a DIY or engineered wall.

Understand what 150 UC steel posts are, when they are specified over lighter retaining wall posts, and how section size, sleeper compatibility, spacing, embedment, galvanising and Australian Standards affect a safe retaining wall system.

Everything you need to spec steel retaining wall posts correctly: H-beam vs C-channel, how the 100/150/200 Series compare, and how to match posts to your sleepers.

Comparing 100, 150 and 200 Series steel posts? See which one matches your sleeper thickness, wall height, soil type and load, with worked examples.

How deep should retaining wall posts be set in Australia? The standard rule is one-third of total post length in the ground — so a 1.5m post needs 500mm embedment for a 1.0m wall. This guide covers embedment depth by wall height, soil type adjustments, surcharge load rules, and worked examples for H-beam and C-channel posts.

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