An object of type Layout is attached to children of the layout to provide layout specific information about the item. The properties of the attached object influence how the layout will arrange the items. If minimum size has not been explicitly specified on an item, the size is set to 0. If maximum ...
> Layout You can select the default layout for all the site (archives, search etc.), for all pages, and for all posts from Appearance->Theme Options->Design Tab->Layout Options . In our demo page the default layout is right sidebar so all the pages will have the right sidebar layout unless a unique layout is selected for some post/page.