Remove the left sidebar from twenty fourteen theme

Somebody already solved a similar problem, I believe.

http://wordpress.org/support/topic/center-site-content-to-full-width?replies=3

Hope that helps.

Cheers,
K

Just download the Twenty Fourteen Extended plug-in. There you will get the option under Appearence ==> Customisation, to remove the left sidebar aswell as a lot of other option. Like center the website etc.

This sidebar thing is a bit of a mistake by the dev team I think. I understand that the Twenty Fourteen Extended Plug-in “fixes” the problem but for those of us who want to use Twenty Fourteen to develop Child Themes its not a good option. You should never have to use a plugin to add or remove page elements in a theme. It should be able to be easily accomplished in the HTML and CSS.

Let it be known to the WP Dev team that a plugin is not a good solution to this issue. This should have been as easy as “If there are no widgets in the sidebar, the sidebar does not appear.”

To do it without a plugin:
1. Create a child theme
2. Create a new text file
3. Copy-paste the following code in this file:

<?php
/**
Template Name: Sidebar à droite (seule)
 * The template for displaying all pages
 *
 * This is the template that displays all pages by default.
 * Please note that this is the WordPress construct of pages and that
 * other 'pages' on your WordPress site will use a different template.
 *
 * @package WordPress
 * @subpackage Twenty_Fourteen
 * @since Twenty Fourteen 1.0
 */

get_header(); ?>

<div id="main-content" class="main-content">

<?php
	if ( is_front_page() && twentyfourteen_has_featured_posts() ) {
		// Include the featured content template.
		get_template_part( 'featured-content' );
	}
?>
	<div id="primary" class="content-area">
		<div id="content" class="site-content" role="main">

			<?php
				// Start the Loop.
				while ( have_posts() ) : the_post();

					// Include the page content template.
					get_template_part( 'content', 'page' );

					// If comments are open or we have at least one comment, load up the comment template.
					if ( comments_open() || get_comments_number() ) {
						comments_template();
					}
				endwhile;
			?>

		</div><!-- #content -->
	</div><!-- #primary -->
	<?php get_sidebar( 'content' ); ?>
</div><!-- #main-content -->

<?php

get_footer();

4. Save the file as template-page2.php in your child-theme folder.
5. Go in your page and select the new template…
I hope it will help.
T’Cheers