CMS Joomla Templates - How can I assign your Joomla template to the certain page of the site?

Answer
You can assign Joomla template to the selected page only if there is a direct menu link to it. So please make sure that there are direct menu links to the pages you want to assign the template to. After that, you will need to go to Site Templates section that is located under Template Manager and select the template you want to apply. Click on the Assign button. On the right, you will see the list of the pages you can apply selected Joomla template to. Select one or more pages you need and save.