template-portfolio-fullscreen.php

<?php
/**
 * Template Name: Portfolio Fullscreen
 * The template for displaying the portfolio fullscreen layout.
 *
 * @package     Spaces
 * @link        https://themebeans.com/themes/spaces
 */

get_header();

get_template_part( 'content', 'portfolio' ); // PULL CONTENT-PORTFOLIO.PHP

get_footer();