#256

Go to your WordPress Dashboard. Then go Appearance > Customize > Woocommerce

To make the page full width for single product posting go to Single Product > Layout and then choose the Full Width Layout

To make the page full width for product listings go to Archives > Layout and then choose the Full Width Layout

Just in case you are wondering they dont behave like regular pages in the sense then when you go to your list Pages you wont see a page for the Archives and Single Product. If you make regular pages full width that wont automatically apply to single product and archives pages. You have do as above instructions.