themes-wordpress/sketch/fullwidth-page.php

<?php
/**
 * Template Name: Full Width, No Sidebar
 *
 * @package Sketch
 */

// Access global variable directly to set content_width
if ( isset( $GLOBALS['content_width'] ) )
	$GLOBALS['content_width'] = 1091;

get_header(); ?>

	<div id="primary" class="content-area">
		<main id="main" class="site-main" role="main">

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

				<?php get_template_part( 'content', 'page' ); ?>

				<?php
					// If comments are open or we have at least one comment, load up the comment template
					if ( comments_open() || '0' != get_comments_number() ) :
						comments_template();
					endif;
				?>

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

		</main><!-- #main -->
	</div><!-- #primary -->

<?php get_footer(); ?>