Tapered Flange Beams


Structural steel tapered flange beams are similar to the “I” shape of universal beams, however they have tapered flanges. This vertical middle section of the beam is commonly known as a “web”, with the horizontal portion being called a “flange”. The vertical section, or the “web” is substantially longer than the horizontal, or “flange” portion. Tapered flange beams are the choice shape for structural steel builds due to their high functionality.

Tapered Flange Beams may also be referred to as “I beams” or “Rolled Steel Joists”. Tapered Flange Beams are regularly used for support in residential and commercial construction projects or in industrial applications where maximal strength is paramount.

Steelforce have a range of Tapered Flange beams in a variety of sizes from 100 TFB to 125 TFB, standard lengths are 9m and 12m. Our tapered flange beams are manufactured in Australia from 300PLUS steel and exceed the minimum requirements of AS/NZS 3679.1

Features and Benefits of Tapered Flange Beams

  • Available in a variety of sizes
  • Exceeds the minimum requirements of AS/NZS 3679.1
  • Heavy duty and up to 20% stronger for improved strength-to-weight ratios
  • No pre-heating required for welding
  • Cost-effective – “I’ shape is an economic design

Typical Uses of Tapered Flange Beams

  • Commercial and residential construction
  • Engineering
  • Civil and bridge construction
  • Mining infrastructure
  • Rail car and machine building

Relevant Standards

  • AS/NZS 3679.1: Hot-rolled bars and sections

Specification for Tapered Flange Beams

Section DesignationSection MassSection Depth aSection Flange Width bSection Flange Thickness cSection Web Thickness dSection Root Radius rMetres / tonne

Available in 9 and 12 metre lengths.

Not all branches stock the above grades, sections and lengths. Non-stock & Custom length items are subject to Minimum Order Quantities (MOQ’s). Contact your local Steelforce branch to confirm product availability.