Yep, that should be the way to do it. The posts use the single.php file by default and it doesn’t go full width. Creating a new one specifically for your custom post type using the layout of a page should fix it. Glad you figured it out!
I am trying to do the same, can you please explain it step by step. Once I create the post template, how can I make it override the default post one across the whole website.
I would like to be able to edit my post page so that I can completely remove the sidebar area and design my post template which works as the default not the one that comes with BB.
If I try to edit a post using the page builder, the sidebar is added by default and I cant remove it.
Here is a link to an image of how I would like the default post page design to look like View design
I’d just chime in here. To remove the sidebar from your post template, navigate to Appearance > Customize > Content > Blog Layout > Set the Sidebar Position “No Sidebar”. Let us know how it goes!