Release Oct 2025

This update brings significant improvements to both the core library and the interfaces:

Main updates

• CLT integration for enhanced multi-layer timber modelling

• Support for nail fasteners

• Refined fastener behaviour:
  - Corrected effective number of fasteners in Excel
  - Improved spacing rules
  - Added stiffness calculation

• Design code updates:
  - Fixed Kfi factor in shear
  - Buckling length input now in meters for safer design entry
  - New material: OSB
  - Updated vibration engine for transient floor analysis based on the prEN1995-1-1

• Excel function for RFEM 6 input

• Pre-design option for maximum edge distances without predefined fastener angles

• Grasshopper demo file using a C# component (please make sure to reference the StructuralDesignKitLibrary.dll file in the C# component)

To install the Excel interface, please follow the link here and follow the steps.