Although this theme supports the use of WooCommerce, it’s not built as a WooCommerce theme, so there are some limitations. However, if you are using a child theme with Circumference, you can actually override the theme’s template for WooCommerce. Are you using a child theme?
If you’re using a child theme and simply just want a full width layout, this is probably the easiest method as it just requires the modification of one file. The other method is if you want to customize the WooCommerce templates, which this site has an interesting tutorial which also requires a child theme: WooCommerce Templates