Example of adding WooCommerce theme support for templates.

addthemesupport.php

remove_action( 'woocommerce_before_main_content', 'woocommerce_output_content_wrapper', 10);
remove_action( 'woocommerce_after_main_content', 'woocommerce_output_content_wrapper_end', 10);

add_action('woocommerce_before_main_content', 'custom_themewrapper_start', 10);
add_action('woocommerce_after_main_content', 'custom_themewrapper_end', 10);

function custom_themewrapper_start() {
  echo '<div class="main"><div class="row"><div class="large-12 medium-12 small-12 columns content">';
}

function custom_themewrapper_end() {
  echo '</div></div></div>';
}

Thanks a lot!