Deleting your board
Sometimes you might need to remove a board that's no longer in use. Please be aware that deleting a board is a permanent action and all associated feedback, comments, and data will be unrecoverable.
Navigate to the board you wish to delete. Make sure you are on the board you wish to delete on the left navigation.
Click on the "Board settings" in the main navigation.
Under the ‘General’ tab, you'll find the "Export and delete" section.
Click the "Delete board" button.
A confirmation dialog will appear, asking you to confirm your decision. This is your final chance to stop the deletion.
To proceed, type the board's name into the confirmation field (this extra step helps prevent accidental deletions) and click "Confirm deletion."
Your board and all its data will now be permanently removed.