Drupal7 Panels Frame module

If you install this module, you can create new layouts combining current layouts. Bootsrap framework provides many types of layouts of panels frame. You will have more choices by installing Bootstrap and Panels Bootstrap Layouts.

Panels Frame
https://drupal.org/project/panels_frame
Bootstrap
https://drupal.org/project/bootstrap
Panels Bootstrap Layouts
https://drupal.org/project/panels_bootstrap_layouts