You can draw any shape you like in the **Board Outline Layer** using the **Track** and **Arc** tool from the **PCB Tools** palette. Please refer to the Tutorial: [https://docs.easyeda.com/en/PCB/Board-Outline/index.html](https://docs.easyeda.com/en/PCB/Board-Outline/index.html)

Ensure that the finished board outline is closed. In other words the end point of each element coinicides with the start point of the next.(including the first when closing the end of the outline).