Remove sidebar left

You can remove the Left Sidebar by default just adding the class be-nosidebar-left into the main wapper element, like this: 

<html lang="en">
  <body>
    <div class="be-wrapper be-nosidebar-left">
      <nav class="navbar navbar-default navbar-fixed-top be-top-header">
        <!-- Top bar -->
      </nav>
      <div class="be-content">
        <!-- Main content -->
      </div>
      <div class="be-right-sidebar">
        <!-- Right sidebar -->
      </div>
    </div> 
  </body>
</html>