Genesis_custom_layout_complete_1.php

<?php // <- Remove <?php if your using this snippet

// Register New Layout
function jm_custom_layout() {
    genesis_register_layout( 'layout-name', array(
        'label' => __('custom/layout/name', 'genesis'),
        'img' => get_bloginfo('stylesheet_directory') . '/images/yourlayout.gif'
    ) );
}
add_action( 'init', 'jm_custom_layout' );


// Hook in just before the main content-sidebar-wrap
add_action( 'genesis_before_content_sidebar_wrap', 'custom_layout_sidebar' );
function custom_layout_sidebar() {
 
$layout = genesis_site_layout();
 
    // check to see if the custom layout exists
    if( 'layout-name' == $layout ) {
     
        echo '<div id="custom-sidebar">';
            // Open genesis structural wrap
            // Registered your wrap with add_theme_support( 'genesis-structural-wraps', array(, 'custom-sidebar' ) ); in functions.php
            genesis_structural_wrap( 'custom-sidebar' );
                
                // Add our sidebar
                dynamic_sidebar( 'custom-sidebar' );
            
            // Close the structural wrap
            genesis_structural_wrap( 'custom-sidebar', 'close' );
            
        echo '</div>';
     
    }
}