Metroll Megaspan® Purlin & Girts are a range of performance enhanced Z and C purlins. The profile has been optimised to deliver capacity improvements of more than 20% compared with standard purlins and girts. Metroll Megaspan® purlins and girts are used primarily in the design of sheds, industrial and commercial buildings. Sections are typically used to support roof and wall sheeting in these buildings.

It is important that standard purlins are not substituted for designs from the Megaspan® design manual. Megaspan® is a higher performance section and standard purlins will not deliver the same load capacities.

Metroll has developed an online selection tool making it easier for designers, builders and contractors to identify the best Megaspan® section for the job. Simply click here, enter the project details and in a matter of seconds see which Megaspan® section will suit your application.

Accessories: Met-Lock Bridging system (or Tab-Lok Bridging system in WA) is a comprehensive bridging system developed for fast installation and optimal compatibility with Metroll Megaspan® purlins & girts.

The statements, information, and opinions quoted are provided by the featured supplier. BlueScope Steel Limited does not warrant the accuracy or currency of the content and is not responsible or liable for content provided by third parties

Metroll Megaspan® Purlin & Girts

Contact Metroll

Product detail

Product availability is indicative, contact Metroll directly to confirm availability.
Profile dimensions

Material Choices

Materials Gauges
Metroll Megaspan purlins and girts are manufactured from high tensile G450, G500 or G550 galvanised steel, with a minimum of Z350 galvanised coating (350g/m2) conforming to AS1397. 3. Not all styles are available in all branches. Minimum order quantities may apply. Lead times may apply. Contact your Metroll branch for details.


  • 1.2 BMT
  • 1.5 BMT
  • 1.9 BMT
  • 2.4 BMT
  • 3.0 BMT


CAD Resources

Renders - Flat Colour Swatches

Files selected for downloading