Full Width Page Template in Genesis for Beaver Builder. https://sridharkatakam.com/full-width-page-template-in-genesis-for-beaver-builder/

functions.php

/**
 * Template Redirect
 * Use page_beaver.php for all static Pages.
 */
add_filter( 'template_include', 'custom_page_template', 99 );
function custom_page_template( $template ) {

	if ( is_singular( 'page' ) ) {
		$new_template = locate_template( array( 'page_beaver.php' ) );
		if ( '' != $new_template ) {
			return $new_template ;
		}
	}

	return $template;
}

page_beaver.php

<?php

// Template Name: Full Width Page

add_filter( 'body_class', 'beaver_body_class' );
/**
 * Adds a css class to the body element
 *
 * @param  array $classes the current body classes
 * @return array $classes modified classes
 */
function beaver_body_class( $classes ) {
	$classes[] = 'fl-builder-full';
	return $classes;
}

/**
 * Add attributes for site-inner element, since we're removing 'content'.
 *
 * @param array $attributes Existing attributes.
 * @return array Amended attributes.
 */
function be_site_inner_attr( $attributes ) {
	// Add the attributes from .entry, since this replaces the main entry
	$attributes = wp_parse_args( $attributes, genesis_attributes_entry( array() ) );
	return $attributes;
}
add_filter( 'genesis_attr_site-inner', 'be_site_inner_attr' );

// Display Header
get_header();

// Display Content
the_post(); // sets the 'in the loop' property to true.
the_content();

// Display Comments
genesis_get_comments_template();

// Display Footer
get_footer();

style.css

/* Full Width Page
-------------------------------------------- */

.fl-builder-full .site-inner {
	max-width: none;
	padding-top: 0;
}

@media only screen and (max-width: 800px) {

	.fl-builder-full .site-inner {
		padding-left: 0;
		padding-right: 0;
	}

}