Do you want no columns displayed, or do you want sidebars on it?
You can use this function:
add_filter( 'generate_sidebar_layout','generate_custom_woocommerce_sidebar_layout' );
function generate_custom_woocommerce_sidebar_layout( $layout )
{
// If we are on a woocommerce page, set the sidebar
if ( is_woocommerce() )
return 'both-left';
// Or else, set the regular layout
return $layout;
}
These are the options:
Sidebar / Content: left-sidebar
Content / Sidebar: right-sidebar
Content (no sidebars): no-sidebar
Sidebar / Content / Sidebar: both-sidebars
Sidebar / Sidebar / Content: both-left
Content / Sidebar / Sidebar: both-right
Adding PHP: https://generatepress.com/knowledgebase/adding-php-functions/
Let me know if you need more info ๐