Welcome to Edcon Steel - Register TODAY - View LIVE prices on over 6,000 steel and metal items - Get quotes and buy online 24/7

Steel Square Bar

Custom-cut to order
Delivery or Click & Collect

Grade 300 plus and Hot Dip Galvanised (HDG) available in various sizes.

Square Bars are square shaped solid steel which can be used in construction and fabrication applications. All our branches stock a wide range of mild steel round bars in 300 grade mild steel. All these stocked mild steel square bars can be cut to your sizes with no minimum size, so you only pay for what you need*. (* limits and cutting charges will apply)

Search below for Steel Square Bar only.

Search All Products

Loading results...


The majority of steel square bars will be hot rolled mill finish, this is a relatively low tolerance coarse finish bar with mill scale. Your application may require certain special properties or tolerances for your square bar please be sure to specify your requirements prior to placing your order.

Common Applications

Mild Steel Square bars are found in applications, where they can be cut, formed & bent, threaded, drilled and welded for use in :

  • Grills & Grates
  • Screens
  • Security Grills
  • General Engineering
  • Furniture
  • Automotive
  • Trailers and Truck bodies

Edcon Steel Tips

  • For a smoother, more even and consistent finish cold rolled Square bars are commonly available in Bright Mild Steels (BMS) some branches will stock BMS flats and you can view our selection online here.
  • All our stores have close to a compete range of Hot Rolled Steel Square Bar ranges in Mild Steel 300 plus grade Steel in stock on the floor in 6000mm lengths. Our Branches are continually working on providing convenient pre-cut 1000mm and 2000mm lengths for customers who are looking for smaller lengths of Mild Steel Square Bar but prefer not to wait to have items cut to size. All of our stocked round bars can be cut to your sizes.

Surface Preparation and Coatings

Mild steel square Bars are stocked in a Mill Finish. Mill Finish is an uncoated, untreated finish which as the name suggests, as it comes from the steel mill. The surface will be dirty, may be contaminated, but generally will be free form oil or chemicals. The 300 grade mild steel square bar will also, in many cases, have a mill scale – a thin flaky substance that is a by product of the hot rolling process.

See all Steel products

Our most popular steel and metal products

Structural Steel Beams, C-Section, Columns, Angles

Browse Now

316 Stainless Steel. Sheet & Plate, Angle, Bar, Pipe, Tube

Browse Now

Precision Metals - Gauge Plate & Silver Steel

Browse Now

Cattle & Sheep Handling. Steel Panels, Gates, Ramps, Crush

Browse Now

Buy Rural Fencing Online. Wire, Pickets, Posts, Gates

Browse Now

Buy Welded Mesh Online. Mesh and Perforated

Browse Now

Tubular Steel. Rectangular (RHS), Square (SHS), Pipe

Browse Now

Merchant Bar. Flat, Round, Square, Angles, C-Channel

Browse Now

Need some inspiration? Check out our customer projects

St Dominic’s Yarning Circle

The innovative design concept of the Yarning Circle helped to transform an unused outdoor space into a central meeting hub for the school community at St Dominic’s College in Sydney.

Learn More

3801 steam train

From the workshop benches to the materials used on the train, Edcon was there to provide the quality steel and metal needed to restore the 3801 steam train.

Learn More

Don Wimer, American Ramp Company

The Wollongong landscape is transforming – and it’s a dream come true for skaters and scooters across the city.

Learn More

Leading brands

Edcon toolbox

What is the difference between pre-gal and hot-dip galvanised steel?

Learn More

304 vs 316 stainless steel

Learn More

Make over your garden this spring with a retaining wall or some garden edging

Learn More