Reply To: How can I make featured images full width?

Hi Paul, you could try disabling the Featured Image for Posts in the Customiser > Layout > Blog and then adding this to the after header hook:

<?php if ( is_single() ) : 
           if ( has_post_thumbnail() ) { ?>
               <div class="featured-image-in-header">
                   <?php the_post_thumbnail(); ?>
               </div>
           <?php }
endif; ?>

It won’t be constrained by the grid container so should be full width and will be output as an img.