Beale Street Regions
Beale Street features 18 user regions divided into fully collapsibal sidebars and horizontal sections. This means that Beale Street automatically sizes and places blocks depending on the blocks that you wish to display on any page. Beale Street can be configured for fluid or fixed widths using the easy configuration panel. When using fluid widths, the content and page layout automatically resize to fill the user's screen.
For more detailed examples, be sure to check out the tutorial on Using Regions.