Heavy Duty Gate Posts Freudenthal Custom made Heavy Duty Gate Posts are constructed of a 4" x 6'6" 7 gauge post with a 18" steel rust guard. They come with heavy wall rotating sleeve hinges with grease inserts. Our Gate Posts can be manufactured to support a single gate (ILL.1) or two gates may share the same post (ILL.2). Heavy Duty Latch Posts (ILL.3) are also available.