# Supported shapes of compound section

| Pattern                          | Shape                                                               | Parameters \[mm] |
| -------------------------------- | ------------------------------------------------------------------- | ---------------- |
| ![](/files/XNVYqkvMtbcrrlfhKwAC) | Double I section                                                    | a                |
| ![](/files/unjUpSk43Anyn0A5zw49) | <p>Double Channel FtF</p><p>(face to face position)<br></p>         | a                |
| ![](/files/X4531dXQOSdGyNaUpQ5j) | <p>Double Channel BtB</p><p>(back to back position)</p>             | a                |
| ![](/files/d59WKEz4jV8TIhU5O5CJ) | <p>Starred Angle</p><p>(diagonal position)</p>                      | a                |
| ![](/files/f5sZ8tHyF8fGJXefNvCZ) | <p>Double Angle BtB</p><p>(back to back position)</p>               | a                |
| ![](/files/SmbooBHOcoMP5IGOy4e0) | <p>Double Angle FtF</p><p>(face to face position)</p>               | a                |
| ![](/files/koKaexHDyLS6Uv79p1bF) | <p>Double Angle BtB LL</p><p>(long leg - back to back position)</p> | a                |
| ![](/files/YiZXUJH9TIdjvBqXNmIl) | <p>Double Angle FtF LL</p><p>(long leg - face to face position)</p> | a                |
| ![](/files/2nhVvZnjjKOa81UJFAbT) | <p>Four Angle BtB</p><p>(back to back position)</p>                 | a; b             |
| ![](/files/1GaG1PDCqgSDafKjzZ25) | <p>Four Angle FtF</p><p>(face to face position)</p>                 | a; b             |
| ![](/files/Tk1upvf1nSkuv653O6Og) | Four Angle I                                                        | a; b             |
| ![](/files/zoDdMQedZFywd0XQqg6c) | Double pipe                                                         | a                |


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