Navigate to Appearance>Customize>Blog Settings to set Blog’s Layout.
You can have different Layout for the home page and all the other pages of the blog.
You can Set Up the Home page layout choosing one of the 5 options available
- Full-Width Layout
- List Layout
- Grid Columns Layout
- First Post Full Width and the rest List Layout
- First Post Full Width and the rest Grid Layout
There is an option to set the number of columns for Grid layout to 2 or 3 columns.
3 Column Grid is intended for layouts without sidebars.
You can also select to display the excerpt or the full text. This option only works for Full-Width Layout.