Metal Roof Decking Profile

Deck Specification


Deck profile typically used as the structural deck for single ply membrane, double skin built-up, standing seam, green roof and asphalt systems.


  • Provides uncluttered soffit when designed as part of a diaphragm roof
  • Perforated option available for enhanced acoustic performance
  • Bespoke lifting aid available for ease of installation
  • In addition to the standard galvanized steel, Aluminium option is also available where durability is a concern in aggressive environments.


  • 0.75mm (Steel)
  • 0.88mm (Steel)
  • 1.0mm (Steel / Aluminium)
  • 1.25mm (Steel / Aluminium)
  • 1.5mm (Steel / Aluminium)


  • 750mm cover width
  • 158mm deep
  • Available with perforated webs providing 15 to 35% perforation, depending on pattern.

Steel Grade

  • S320
  • Aluminium 180 MPa

Coatings and Finishes

  • Galvanised (Z275)
  • Interior Liner
  • Aluminium
  • Perforated

Available from SMD Ltd, download SMD Elements® Design Software

Brochure Download

Metal Decking continues to provide the best fast-track, flexible, and financially-effective solution for suspended floor slabs in steelwork construction.

Thru Deck Services has access to the full range of SMD Ltd’s product range, providing a solution for all suspended floor slab requirements, including concreting on metal decking and roof decking.

Thru Deck provides a comprehensive service in design, manufacture, supply and installation of metal deck, shear stud welding concrete.