Liferay Portal 6.1 CE GA2+
Liferay Portal 6.1 EE GA2+
Layout Templates allow you to choose how portlets will be arranged on a page. They are simple table or CSS-based containers into which portlets can be dropped and sit within the body of the page. Liferay Portal comes with several built-in layout templates, 80-20 Layout is something which is not available out of box in liferay portal. This layout will provide 80-20 column structure for portlet arrangement in a portal page.
This layout will appear in your Page Layouts once installed.