page_layout for 3columns and 2columns right is missing

[riconeitzel]

corresponding page_layout/*.xml files are bare copies of 2columns-left

[vpelipenko]

@riconeitzel, could you give us more details? Want to understand where is issue.

[riconeitzel]

@vpelipenko there is a 3columns.xml file but it's just configuring a 2columns page … so technically there is no 3 columns design available in Magento.

[eug123]

Markup and column containers for 2 columns and 3 columns layouts are the same. Visual representation of sidebars is controlled via css class added to the body like .page-layout-3columns automatically depending on layout applied.
You can always add your custom layout. Please check the documentation