index.php

<?php
/**
 * The template for displaying Archive pages.
 *
 * Used to display archive-type pages if nothing more specific matches a query.
 * For example, puts together date-based pages if no date.php file exists.
 *
 * If you'd like to further customize these archive views, you may create a
 * new template file for each specific one. For example, Twenty Twelve already
 * has tag.php for Tag archives, category.php for Category archives, and
 * author.php for Author archives.
 *
 * Learn more: http://codex.wordpress.org/Template_Hierarchy
 *
 * @package WordPress
 * @subpackage Twenty_Twelve
 * @since Twenty Twelve 1.0
 */

get_header(); ?>

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

		<?php if ( have_posts() ) : ?>
			<header class="archive-header">
				<h1 class="archive-title"><?php
					if ( is_day() ) :
						printf( __( 'Daily Archives: %s', 'twentytwelve' ), '<span>' . get_the_date() . '</span>' );
					elseif ( is_month() ) :
						printf( __( 'Monthly Archives: %s', 'twentytwelve' ), '<span>' . get_the_date( _x( 'F Y', 'monthly archives date format', 'twentytwelve' ) ) . '</span>' );
					elseif ( is_year() ) :
						printf( __( 'Yearly Archives: %s', 'twentytwelve' ), '<span>' . get_the_date( _x( 'Y', 'yearly archives date format', 'twentytwelve' ) ) . '</span>' );
					else :
						_e( 'Archives', 'twentytwelve' );
					endif;
				?></h1>
			</header><!-- .archive-header -->

			<?php
			query_posts('post_type=work&posts_per_page=5&paged='.( get_query_var('paged') ? get_query_var('paged') : 1 ));
			$count = 0;
			if(have_posts()) : while(have_posts()) : the_post();
				if ($count < count($posts)) {
					$open = !($count%2) ? '<div class="work-row">' : '';
			    	$close = !($count%2) && $count ? '</div>' : '';
				} else {
					$open = '<div class="work-row">';
					$close = '';
				}

			    echo $close.$open;
			?>
				<article>
					<h1><?php the_title(); ?></h1>
					<a href="<?php the_permalink(); ?>"><?php the_post_thumbnail(); ?></a>
				</article>
			<?php
		    $count++;
		    endwhile; endif; ?>
   			<?php echo $count ? '</div>' : '';
			twentytwelve_content_nav( 'nav-below' );
			?>

		<?php else : ?>
			<?php get_template_part( 'content', 'none' ); ?>
		<?php endif; ?>

		</div><!-- #content -->
	</section><!-- #primary -->

<?php get_sidebar(); ?>
<?php get_footer(); ?>