Page template with custom content's width.

page_custom_content_width.php

<?php
/*
 * Template Name: Page with custom content's width
 * 
 */
/* Custom params */
$window_content = array(
  // min window's width => container's width
  '1200px' => '98%',
  '768px'  => '95%',
  //and so on
);

add_filter('tc_column_content_wrapper_classes', 'use_row_fluid');
function use_row_fluid($classes){
  return preg_replace('/^row$/', 'row-fluid', $classes);
}
add_filter('tc_user_options_style', 'my_custom_content_widths');
function my_custom_content_widths( $_css ){
  global $window_content;  
  $media_queries = '';
  foreach ( array_reverse($window_content) as $window_w => $content_w )
    $media_queries = sprintf("%s\n@media (min-width:%s){ %s { width: %s; } }",
        $media_queries,
        $window_w,
        '#main-wrapper.container, #main-wrapper .container',
        $content_w
    );
    $_css = sprintf("%s\n%s",
        $_css,
        $media_queries
    );

    return $_css;
}

get_template_part('index');