Steel Joist System

Rollforming Services manufactures the Speedfloor Steel Joist System, an engineered solution which offers extended spanning capability (up to 6.5m in residential flooring) and unmatched constructional flexibility in almost any type of construction.

The galvanised C sections feature unique fold-out ‘tab’ connectors in the perimeter channel for fast and accurate joining. There is also the option of pre-punched holes for fast, efficient installation of services.

Assembled onsite or delivered as a pre-assembled cassette, Speedfloor joists are easily configured for mezzanine floors, portal framed sheds, industrial platforms, residential mid floors and piled sub floors or integrated into timber framed buildings.

Speedfloor cold formed joists are manufactured from high strength, pre-galvanised steel coil conforming to AS 1397. The minimum mass coating of galvanising is 275g/m2. The standard steel used is grade 250 and has a minimum yield stress of 250MPa and a minimum tensile stress of 280MPa.

Span tables are available on request and are published in the Speedfloor Steel Joist System Product Manual which can be downloaded below.

  • Strong but lightweight joists allow for easy manoeuvrability.
  • Available in the following sections with pre-punched service holes - 140, 150, 190, 240, 250 and 290mm.
  • Pre-galvanised 275g/m2 steel for long-term corrosion protection.
  • Pre-cut to length, for time and cost savings.
  • Producer Statements are available on request.

Refer to the Speedfloor Steel Joist System page

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