Timber Framed Construction for Commercial Buildings Classes 5, 6, 9a & 9b

Design Guide 3 offers designers, specifiers, builders, code officials and certifying authorities a guide for interpreting fire-resisting timber-framed construction that complies with the BCA. 

For timber-framed construction, this guide demonstrates achievement of targeted fire and sound performance requirements in the BCA for Class 5, 6, 9a and 9b buildings. In this context, the guide provides certified construction details that utilise the BCA Deemed to Satisfy Provisions. It focuses specifically on fire-resisting construction of wall, floor and ceiling elements.

The guide does not deal with other aspects of BCA fire safety performance, refer to Appendix B of this document for further details.

This section contains the following resources:

  • Timber-framed Construction for Commercial Buildings Class 5, 6, 9a & 9b - this design guide assists in complying with fire performance requirements in the BCA for Class 5, 6, 9a and 9b buildings
  • CAD details of all relevant drawings in TDG3
    The details are available for the following CAD software formats: ArchiCAD (.mod), AutoCAD (.dwg), Revit (.rvt) as well as JPEG and PDF formats
    NOTE: Each ZIP file includes a document that cross references each CAD detail to the relevant figure in TDG3

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