Unable to remove sidebar from single prodcut page

There is some custom CSS in this thread that may prove helpful in your case

@aeim Add the follows code snippet in your active theme’s functions.php –

function remove_sidebar_single_product_page() {
if ( is_product() ) {
// for understrap theme
remove_action( ‘woocommerce_after_main_content’, ‘understrap_woocommerce_wrapper_end’, 10 );
// for default woocommerce structure
remove_action( ‘woocommerce_sidebar’, ‘woocommerce_get_sidebar’, 10 );
// add wrapper end for single product
add_action( ‘woocommerce_after_main_content’, ‘understrap_woocommerce_wrapper_end_for_single_product’, 11 );
}
}
add_action( ‘wp’, ‘remove_sidebar_single_product_page’ );

function understrap_woocommerce_wrapper_end_for_single_product(){
echo ‘</main><!– #main –>’;
echo ‘</div><!– .row –>’;
echo ‘</div><!– Container end –>’;
echo ‘</div><!– Wrapper end –>’;
}