STAAD.Pro HelpDesignD. Design CodesD3. British Codes D3. British Codes Note: The BS 8110 code has been removed from the batch design. To perform design to the current BS 8110 design code, please use the Advanced Concrete Workflow. D3.A. British Codes - Steel Design per BS5950:2000D3.B. British Codes - Design per BS5400D3.C. British Codes - Design per BS8007D3.D. British Codes - Design per British Cold Formed Steel CodeParent Topic: D. Design Codes