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RD-DCR Disproportionate collapse range

Product description

The RD-Range was developed for joist to rim beam connections. The design concept is that the floors are constructed as normal with the joists bearing onto the wall panel and the RD-DCR is then fixed into position to restrain the joist. In the event of a disproportionate collapse situation arising (fire, explosion etc.) the RD-DCR, although not normally used as a hanger, will act as a hanger to transfer the floor load to the rim beam which will have been designed to carry this load across the length of the panels. The disproportionate collapse restraint system (RD range) is a multi-compliant solution that meets:

  • Part A: Compliant with Disproportionate Collapse requirements for 5 storeys or more
  • Part E: Compliant with Robust Details (E-FT-1 and E-FT-2) for timber frame structural junctions between timber separating fl oors and external walls
  • Part E - Assisting towards compliance for Approved Document E performance requirements
  • Corner bracket system makes a major contribution to compliance with air leakage
  • Building Standards (Scotland) - Section 1.2 (Structure) & 5.1 (Noise)


  • Permits increased standardisation of details for all storey heights
  • Improves low frequency sound insulation performance
  • Improves stiffness of the floor

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