To make the WooCommerce templates full width (without a sidebar) - first remove any widgets within Appearance > Widgets > Shop Sidebar.
Next, add the following css snippet to Appearance > Customize > Additional CSS:
.woocommerce .cg-shop-main .row-eq-height {
display: block;
}
.woocommerce .col-lg-9.col-md-9.col-sm-12.col-md-push-3.col-lg-push-3 {
left: 0%;
width: 100%;
}