How to make blod post full width

Hello,

Blog details page is handle by your theme single.php file. Please check is there any setting to display single view in full width.

I dont see anything in there about it

<?php
/**
 * The template for displaying all single posts.
 *
 * @package pro
 */

get_header(); ?>

	<?php if( get_option( 'page_for_posts' ) ) : $cover_page = get_page( get_option( 'page_for_posts' ) ); ?>

	<?php if(get_post_meta($cover_page->ID, 'progression_page_title', true) == 'hide' ) : ?><?php else: ?>
		<div id="soundbyte-page-title">
			<div class="width-container-progression">
				<?php if(function_exists('bcn_display')) { echo '<div id="bread-crumb-container"><div class="breadcrumbs-soundbyte"><ul id="breadcrumbs-pro"><li><a href="'; echo esc_url( home_url( '/' ) ); echo '">'; echo esc_html_e( 'Home', 'soundbyte-progression' );  echo '</a></li>'; bcn_display_list(); echo '</ul><div class="clearfix-progression"></div></div></div>'; }?>
				<h1 id="page-title" class="entry-title-pro"><?php $page_for_posts = get_option('page_for_posts'); ?><?php echo get_the_title($page_for_posts); ?></h1>
				<?php if(get_post_meta($cover_page->ID, 'progression_sub_title', true)) : ?><h2><?php echo esc_html( get_post_meta($cover_page->ID, 'progression_sub_title', true) );?></h2><?php endif; ?>
			</div>
		</div><!-- #page-title-pro -->
	<?php endif; ?>
	<?php else: ?>
		<div id="soundbyte-page-title">
			<div class="width-container-progression">
				<h1 id="page-title" class="entry-title-pro"><?php esc_html_e( 'Latest Posts', 'soundbyte-progression' ); ?></h1>
			</div>
		</div><!-- #page-title-pro -->
	<?php endif; ?>

	<div id="content-pro" class="site-content">
		<div class="width-container-progression<?php if( get_option( 'page_for_posts' ) ) : $cover_page = get_page( get_option( 'page_for_posts' ) ); ?><?php if(get_post_meta($cover_page->ID, 'progression_page_sidebar', true) == 'left-sidebar' ) : ?> left-sidebar-pro<?php endif; ?><?php endif; ?>">

				<?php if( get_option( 'page_for_posts' ) ) : $cover_page = get_page( get_option( 'page_for_posts' ) ); ?>
				<?php if(get_post_meta($cover_page->ID, 'progression_page_sidebar', true) == 'right-sidebar' ) : ?><div id="soundbyte-sidebar-container"><?php endif; ?>
				<?php if(get_post_meta($cover_page->ID, 'progression_page_sidebar', true) == 'left-sidebar' ) : ?><div id="soundbyte-sidebar-container"><?php endif; ?>
				<?php endif; ?>

			<?php while ( have_posts() ) : the_post(); ?>

				<?php get_template_part( 'template-parts/content', 'single' ); ?>

			<?php endwhile; // end of the loop. ?>

			<?php if( get_option( 'page_for_posts' ) ) : $cover_page = get_page( get_option( 'page_for_posts' ) ); ?>
			<?php if(get_post_meta($cover_page->ID, 'progression_page_sidebar', true) == 'right-sidebar' ) : ?></div><!-- close #main-container-pro --><?php get_sidebar(); ?><?php endif; ?>
			<?php if(get_post_meta($cover_page->ID, 'progression_page_sidebar', true) == 'left-sidebar' ) : ?></div><!-- close #main-container-pro --><?php get_sidebar(); ?><?php endif; ?>
			<?php endif; ?>

		<div class="clearfix-progression"></div>
		</div><!-- close .width-container-pro -->
	</div><!-- #content-pro -->
<?php get_footer(); ?>

Hello,

There must be a condition in your theme to hide the side bar in your theme single page view:

<?php if(get_post_meta($cover_page->ID, 'progression_page_sidebar', true) == 'right-sidebar' ) : ?><div id="soundbyte-sidebar-container"><?php endif; ?>
<?php if(get_post_meta($cover_page->ID, 'progression_page_sidebar', true) == 'left-sidebar' ) : ?><div id="soundbyte-sidebar-container"><?php endif; ?>

Please check your theme setting OR documents

Its added a DIV

<div id="soundbyte-sidebar"> </div>

For the sidebar