How Could I delete a Closed Board or Unwanted list

Question

How to delete a closed board

Because it is annoying to show up in my account, i was test the feature, i cannot delete the board and any list, those test and not relate stuff maintain in my account

Answer 1

There's no way to delete a board or list, you are only able to archive them.

There is a card on the Trello Development board for those features. Here is the one for deleting lists https://trello.com/card/delete-lists/4d5ea62fd76aa1136000000c/1314 and here is the one for deleting boards https://trello.com/card/delete-boards/4d5ea62fd76aa1136000000c/1313.