Question 1

What does “150 mm galvanised steel” mean in retaining wall posts?

Accepted Answer

150 mm galvanised steel refers to posts and channels with a 150 mm section width designed to support thicker concrete or timber sleepers, typically 100–150 mm, in heavy retaining wall constructions.

Question 2

What types of 150 mm galvanised steel posts are included?

Accepted Answer

This range generally includes C-channel end posts (150 PFC), H-section middle joiner posts (150 UC), and corner or angle posts sized for 150 mm retaining wall systems.

Question 3

What are galvanised steel C-channel posts used for?

Accepted Answer

150 PFC C-channel posts are used as strong end and edge supports in retaining walls built with thick sleepers, especially for taller walls or high-load applications.

Question 4

What are galvanised steel H-section posts?

Accepted Answer

150 UC H-section posts act as mid-span joiner posts, adding structural rigidity and helping carry both vertical and lateral loads along the retaining wall.

Question 5

Why choose galvanised steel for retaining wall posts?

Accepted Answer

Hot-dip galvanised steel is coated to resist rust and corrosion, providing long service life and low maintenance in outdoor and ground-contact conditions.

Question 6

Are these steel posts compliant with Australian standards?

Accepted Answer

Many galvanised steel retaining wall posts are hot-dip galvanised to AS/NZS 4680, ensuring corrosion protection suitable for structural outdoor use.

Question 7

Can 150 mm steel posts be used with timber and concrete sleepers?

Accepted Answer

Yes. These posts are compatible with a wide range of timber, concrete, or masonry sleepers that are approximately 100–150 mm thick.

Question 8

For what wall heights are 150 mm galvanised posts suitable?

Accepted Answer

150 mm galvanised posts are suited to medium to large retaining walls, including walls over 1.2–1.5 metres where higher soil loads require stronger structural support.

Question 9

What is the advantage of using 150 mm steel posts over 100 mm posts?

Accepted Answer

150 mm steel posts provide greater strength and stiffness, making them more suitable for higher retaining walls and heavier soil pressures than 100 mm posts.

Question 10

How are these posts installed on retaining walls?

Accepted Answer

Steel posts are typically set into concrete footings at designed spacings, with sleepers fixed through pre-drilled holes using bolts or brackets.

Question 11

Do I need drainage behind walls with 150 mm steel posts?

Accepted Answer

Yes. Proper drainage such as gravel backfill and AG pipe is essential to reduce hydrostatic pressure and extend the life of the retaining wall.

Question 12

Are these products suitable for DIY projects?

Accepted Answer

150 mm steel posts can be used in larger DIY retaining walls, but engineer-designed solutions are recommended for walls above typical DIY heights to ensure safety and compliance.

Question 13

Can galvanised steel posts be painted for aesthetics?

Accepted Answer

Yes. Galvanised posts can be painted or powder-coated for aesthetic finishes without compromising their corrosion resistance.

Question 14

Do these posts work well in coastal or high-moisture areas?

Accepted Answer

Yes. Galvanised steel posts provide excellent resistance to moisture and corrosion, making them suitable for coastal or humid Australian environments.

Question 15

Can I order 150 mm galvanised retaining wall steel products online from BM Timber?

Accepted Answer

Yes. You can order 150 mm galvanised retaining wall steel posts and channels online from BM Timber, with pickup or delivery options available.

Mesh

Trench Mesh

Deformed Reinforcing Bar

Spacers, Bar Chairs & Accessories

Retaining Wall Steel 150mm

Elevate Your Space, Transform Your Life

Categories

Newsletter

150 45 Corner 38.5 Galvanised Steel Corner Joiner Post (Fits 100-150mm)

150 90 Corner 38.5 Galvanised Steel Corner Joiner Post (Fits 100-150mm)

150 PFC 17.7 Galvanised Steel C Channel (Fits 100-150mm)

150 UC 23.4 Galvanised Steel H Beam (Fits 100-150mm)

Categories

Newsletter

From $139.50 (Exc.gst)

Per Linear Meter

$155.00

From $130.50 (Exc.gst)

Per Linear Meter

$145.00

From $59.58 (Exc.gst)

Per Linear Meter

$66.20

From $77.32 (Exc.gst)

Per Linear Meter

$85.91

Subscribe to our newsletter for new products, trends and offers.

Popular Categories

Company

Legal & Compliance

Get an instant quote