To create a Board you require the appropriate access. (See Why can't I create a board?)

1. On the top left of the list of boards on the Board Select Screen click the  button.  

2. In the popup windows enter a board name. 

3. Check or uncheck the the "Make Public" checkbox. "Make Public" when checked allows everyone with read access to read and edit contents of your board. To make your Board private uncheck "Make Public."

4. Click the create button to create your board.

*Note: you will only be able to see this button and create new boards if you have Site-Owner permission. If you do not have this permission contact your Site Owner and he or she can help create a new board for you.