Shipping Weight/Dimensions Showing on Product Page Additional Information

Yes, I’m trying to stop dimensions showing up on the additional info. tab too! As well as weight.

Make a child theme. This is so that your customisation is not lost if you update your theme.

Make a file called functions.php in the root of your child theme, code as follows:

<?php
// hide weight and dimensions
add_filter( 'wc_product_enable_dimensions_display', '__return_false' );