Round Reinforcing Steel Bar

Round reinforcing steel bar is a useful product for many residential, commercial, and infrastructure building projects. 

It’s most common use is as a dowel between an existing slab and a newly poured slab to ensure the structural integrity is present throughout the entire slab. It can also be used to make ligatures and they are often present within footings, piers, columns, partitions and precast concrete sections.

A pile of black steel dowels

Benefits Of Round Reinforcing Steel Bar

  • Separation of bar in concrete footings
  • Footings, beams, walls, columns, partitions, precast sections
  • Thread-less circular bars
  • Fixed lengths of round bar
  • Create ligatures and dowels
  • Allows movement in slab to prevent cracking
  • Forms a spiral easier than deformed bar

Why Round Reinforcing Steel Bar Is So Effective

Round reinforcing bar is an effective solution for a variety of applications; including dowels, ligatures and spirals.

Dowel applications are almost always round reinforcing bar, this is due to the need for the dowel to allow movement within the slab to prevent any concrete cracking.

Round bar is often the designer and processor preference for spiral wraps in prefabricated piles or columns, as it forms a spiral easier than deformed bar.

Often round reinforcing steel bar is used for fitments primarily in non-structural applications. In these cases its primary focus is to hold the trench mesh or reinforcing bars in position. These footing systems are designed as a beam on an elastic foundation to ensure a flexible slab system as the ground heaves and sags in wet weather and droughts.

Product Certification

ACRS certified in accordance with AS/NZS 4671: 2001


Projects Using Round Reinforcing Bar

HOTA Gallery

HOTA Gallery - GC Arts Centre

Neumann Steel supplied 5t of round bar to this project.

120 Marine Parade Southport

120 Marine Pde, Southport

More than 5.5t of round reinforcing bar was supplied to this project.

Gallery house - multiplex

Gallery House, Brisbane

We supplied 12.2t of 250N round bar to the Gallery House project.

Maitland Hospital

Neumann Steel delivered over 4.6t of round reinforcing steel bar to the Maitland Hospital.

Common Stock Lengths of Deformed Reinforcing Bar

Product Code

  • R10/6
  • R12/6
  • R16/6
  • R20/6
  • R24/6
  • R27/6
  • R30/6
  • R33/6
  • R36/6
  • R39/6


  • 10mm
  • 12mm
  • 16mm
  • 20mm
  • 24mm
  • 27mm
  • 30mm
  • 33mm
  • 36mm
  • 39mm

Length (mm)

  • 6,000mm
  • 6,000mm
  • 6,000mm
  • 6,000mm
  • 6,000mm
  • 6,000mm
  • 6,000mm
  • 6,000mm
  • 6,000mm
  • 6,000mm

Download the product guide