Where is square bar typically used?

Decorative gates, balustrades and frames — plus anchor stock and general fabrication where a flat-faced bar suits the join.

Can you supply square bar cut to length?

Yes — we'll cut to your list on the cold-cut saw. Standard 6.0m lengths in stock, cut down to whatever you need.

What grade is your square bar?

Mild steel Grade 250 or 300 to AS/NZS 3679.1 — weldable and easy to work.

Do you sell off-cuts of square bar?

Yes — short lengths land in the off-cut bin regularly. Drop in and have a look.

Do you deliver square bar to the Gold Coast?

Yes — Gold Coast, Tweed Heads and Northern NSW delivery on the crane truck or standard tray.

What's the longest square bar you stock?

Standard length is 6.0m. We cut to size on request — bandsaw cuts in the yard.

Can you fabricate from square bar?

Yes — cutting, drilling, welding and short-run bracket work from square bar is standard through the fab shop.

How much does square bar cost?

Price depends on size and length. Send the list and we'll quote same day.

PRODUCTS / Mild Steel Square Bar

Mild Steel Square Bar

Square bar is solid hot-rolled mild steel with square section to AS/NZS 3679.1, used for decorative gates, frames, anchor stock and general fabrication across the Gold Coast.

Sizes

10mm to 50mm

Lengths

6.0m standard

Grade

250 / 300

Cut to size

On request

Square bar is round bar's blockier cousin. Same uses — pins, anchors, stock for machining — but the flat faces give you something to grip in a vice or weld square onto another piece.

We see a lot of square bar in heritage-style gates, balustrades and security grilles around the Gold Coast. Also handy as anchor stock and for any fabrication where you want a square face on the finished part.

Stocked 10mm through 50mm in standard 6.0m lengths.

Common applications

What it's used for.

Decorative gates and frames
Security grilles and bars
Balustrade infill
Anchor and hold-down rod stock
Locating pins and dowels
Frame corners and corner stock
Heritage and ornamental ironwork

Sizes we carry

Standard Square Bar sizes — pulled straight from the rack.

marks the sizes we move most often. Other sizes available on request.

See full size reference → for every standard section we stock.

Stock varies by size. Call us before you drive to confirm what's on the shelf today.

Standard square bar sizes per AS/NZS 3679.1. Stocked items vary — call us for what's on the shelf.

Marshall Steel — Mild Steel Square Bar

Standard square bar sizes per AS/NZS 3679.1. Stocked items vary — call us for what's on the shelf. · 9 Stevenson Court, Burleigh Heads QLD · 07 5576 6037

Size (mm)	Mass (kg/m)	Standard length (m)
10	0.78	6.0
12	1.13	6.0
16	2.01	6.0
20	3.14	6.0
25	4.91	6.0
32	8.04	6.0
40	12.6	6.0
50	19.6	6.0

Got your size? Get a quote.

Quote my Square Bar

Yellow-dot sizes are typical stock at the Burleigh Heads yard. Other sizes available on request — usually same-week.

Finishes

How we finish it.

Black hot-rolled is the standard. Send the finished work out for hot-dip galv if it'll see weather.

Black hot-rolled square
Hot-dip galv (on request)

Mild steel square to AS/NZS 3679.1, Grade 250/300 typical.

Cut to length & fabricated on site.

We cut Square Bar to your sizes on the bandsaw and fabricate from this range in the workshop — drilling, coping, welding, hole-punching. See the fabrication service →

FAQ

Common questions on Square Bar.

Where is square bar typically used?: Decorative gates, balustrades and frames — plus anchor stock and general fabrication where a flat-faced bar suits the join.
Can you supply square bar cut to length?: Yes — we'll cut to your list on the cold-cut saw. Standard 6.0m lengths in stock, cut down to whatever you need.
What grade is your square bar?: Mild steel Grade 250 or 300 to AS/NZS 3679.1 — weldable and easy to work.
Do you sell off-cuts of square bar?: Yes — short lengths land in the off-cut bin regularly. Drop in and have a look.
Do you deliver square bar to the Gold Coast?: Yes — Gold Coast, Tweed Heads and Northern NSW delivery on the crane truck or standard tray.
What's the longest square bar you stock?: Standard length is 6.0m. We cut to size on request — bandsaw cuts in the yard.
Can you fabricate from square bar?: Yes — cutting, drilling, welding and short-run bracket work from square bar is standard through the fab shop.
How much does square bar cost?: Price depends on size and length. Send the list and we'll quote same day.