how do I remove the side bar from a template

You could remove the ‘call’ e.g. <?php get_sidebar(); ?> to get the sidebar in your theme’s template.

But review Stepping Into Templates and Template Hierarchy to help you find where to ‘work’.

Hi Thank you for the response. I read the two support items you linked, I’m still not quite sure I understand. I’m very new at this.

Might look through some of these:
https://cutline.tubetorial.com/forums-archive/tags/sidebar