<?php if ( is_active_sidebar( 'sidebar-2' ) ) : ?>
    <div id="secondary" class="widget-area" role="complementary">
        <?php dynamic_sidebar( 'sidebar-2' ); ?>
    </div><!-- #secondary -->
<?php endif; ?>

add_action( 'init', 'register_my_menus' );
function register_my_menus() {
    register_nav_menus(
        array(
            'menu-1' => __( 'Head' )
        )
    );
}

<?php wp_nav_menu( array( 'theme_location' => 'menu-1' ) ); ?>

<?php get_sidebar( 'customtemplate' ); ?>

<?php get_sidebar('sidebar2');?>

Float:left;
width:20%;
display:block;

margin-right:20px;

float: left;
width: 65%;
display: block;

margin-right: 20px;
margin-left: 20px;

display: block;
float: left;
width: 15%;

margin-left: 20px;

<?php do_action( 'before_sidebar' ); ?>
        <?php if ( ! dynamic_sidebar() get_sidebar() ); ?>

    </div>
    </div><!-- #sidebar -->

</div>
    </div><!-- #sidebar2 -->