Product · RHS
RHS Steel For Fencing & Fabrication
Rectangular Hollow Section steel manufactured to AS/NZS 1163 — supplied in bulk for fencing, gate fabrication and light structural use across Australia.
Specification & Supply
RHS is the workhorse of the Australian fencing and fabrication industry. We hold the common fencing-gauge sizes — 50×25, 75×50 and 100×50 — in pre-galvanised, hot-dip galvanised and black finishes. Stock packs, cut-to-length and mill direct bulk supply available — subject to availability and mill rolling schedule on larger project orders.
- AS/NZS 1163 manufactured
- Common sizes 50×25, 75×50, 100×50 RHS
- Wall thicknesses 1.6mm – 4.0mm (fencing range)
- Pre-galv, HDG and black finish
- Cut to length and standard stock lengths
- Mill direct on bulk and project quantities
Specifications
AS/NZS 1163| Product Type | Rectangular Hollow Section (RHS) |
|---|---|
| Steel Grade | Available in a range of structural grades including AS/NZS 1163 C350L0 depending on section size, wall thickness and mill source |
| Australian Standard | AS/NZS 1163 |
| Finish | Black · Pre-galvanised · Hot dip galvanised |
| Available Sizes (fencing range) | 50×25 · 65×35 · 75×50 · 100×50 · Wall 1.6mm – 4.0mm |
| Standard Lengths | 6.0m · 7.5m · 9.0m · cut-to-length on request |
| Common Applications | Commercial fencing rails, gates, fabrication, light structural framing, balustrades |
Common RHS Sizes — Fencing & Fabrication
Indicative · subject to availability| Size | Wall Thickness | Typical Use |
|---|---|---|
| 50 × 25 RHS | 1.6 · 2.0 · 2.5 mm | Light gates, sliding gate frames, residential rails |
| 65 × 35 RHS | 2.0 · 2.5 mm | Commercial gate frames, light fabrication |
| 75 × 50 RHS | 2.0 · 2.5 · 3.0 mm | Commercial fencing rails, swing gate frames |
| 100 × 50 RHS | 2.0 · 2.5 · 3.0 · 4.0 mm | Heavy gate frames, structural rails, security fencing |
| 125 × 75 RHS | 3.0 · 4.0 · 5.0 mm | Heavy industrial gates, cantilever slide gates |
| 150 × 50 RHS | 3.0 · 4.0 mm | Long-span rails, awnings, light structural |
RHS Applications
Fence Rails
Pre-galvanised RHS in 75×50 and 100×50 is the workhorse rail section for commercial fencing.
Gate Fabrication
RHS frames for swing, sliding and cantilever gates — light residential through heavy industrial.
Light Structural
Awning posts, balustrades, signage frames and architectural metalwork.
Custom Fabrication
Cut-to-length packs supplied to fabricators for in-house gate, frame and bracket production.
Gate Fabrication Uses
Swing Gate Frames
75×50 and 100×50 RHS for single and double swing gates — pre-galvanised for paint or HDG-after-weld.
Sliding Gates
Heavier 100×50 and 125×75 RHS for cantilever sliding gate top rails and bottom tracks.
Pedestrian Gates
Lighter 50×25 and 65×35 RHS for pedestrian access gates and infill panel frames.
Heavy-Duty Industrial
150×50 and bespoke RHS for high-cycle industrial gates with heavy infill loads.
Stock, Lengths & Delivery
- Available in common stock lengths including 6.0m, 7.5m and 9.0m depending on product and availability.
- Cut-to-length supply available on request — supply your cutting list with your quote.
- Bulk and project quantities available — mill direct pricing on larger orders, subject to availability.
Why contractors buy steel from us
Trade WholesaleMill direct supply
Sourced direct from Australian and approved overseas mills — bulk pricing without the merchant markup.
AS/NZS compliant
Steel manufactured to recognised Australian Standards. Mill certificates supplied on request for engineered jobs.
Cut to length
Mill lengths, standard fencing lengths or cut-to-size packs — palletised ready for site.
Australia-wide freight
Direct truck loads, part loads and palletised freight to metro, regional and remote project sites.
Bulk & project quantities
From single pack to full mill order — priced for fencing contractors, fabricators and infrastructure programs.
Trade-only pricing
We supply the trade — fencing contractors, fabricators, steel merchants, landscapers and government buyers.
Frequently Asked Questions
What grade is your RHS supplied to?+
Our RHS is manufactured to AS/NZS 1163, typically C350L0 for structural applications. Mill test certificates are available on request for project orders.
Do you supply pre-galvanised RHS?+
Yes. Both black (in-line painted) and pre-galvanised RHS are stocked in common fencing sizes. Hot dip galvanising to AS/NZS 4680 is available on full pack project quantities.
What's the minimum order?+
RHS is supplied in mill lengths and full stock packs. Trade pricing applies on single packs; mill direct pricing is available on bulk and project quantities.
Can you cut to length?+
Cut-to-length is available on project orders. Supply us your cutting list with your quote request and we'll price it complete with freight.