Metal Floor Decking Profile

Deck Specification


Initially added to our product range in 2002, the original TR80 has undergone further research and development, evolving to the popular TR80+ profile in use today. This 80mm deep trapezoidal profile offers long un-propped spans reducing the number of structural support members required, making it a popular choice for low to medium storey buildings.


  • Reduced concrete volume compared to other decks available
  • Excellent un-propped span capability
  • Soffit ‘Wedge Nut’ fixings available with load capacity of up to 1kN
  • Manufactured from S350 and S450 grade galvanised steel


  • 0.9mm
  • 1.0mm
  • 1.2mm


  • 600mm cover width
  • 80mm cover depth (92mm to top re-entrant)

Steel Grade

  • S350
  • S450


  • Galv (Z275)
  • HD (ZM310)
  • Crushed Ends Option
  • Plastisol (PF)

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.