In Magento it is possible to create more page templates than the traditional 1-column, 2-columns-left (etc) options that we’re given by default. These page templates are defined in XML configuration, which means to add others you’ll need to create a module with config.xml.
In the below example I’ll create a custom page template for my CMS homepage.
app/code/local/Rv/Layouts/etc/config.xml
<config> <global> <page> <layouts> <homepage_layout translate="label"> <label>Homepage Layout</label> <template>page/homepage.phtml</template> </homepage_layout> </layouts> </page> </global> </config>
After doing this, simply create homepage.phtml within your theme template’s ‘page’ directory. To declare your module’s existence, don’t forget your module activation file:
app/etc/modules/Rv_Layouts.xml
<config> <modules> <Rv_Layouts> <active>true</active> <codePool>local</codePool> </Rv_Layouts> </modules> </config>
Following this, you will now have ‘Homepage Layout’ as an available page template for
products, CMS pages, categories and so on.