These durable steel doors offer an attractive carriage house look. Choose from a variety of door colors, window accents and optional decorative hardware. Customize your home with our most affordable carriage house door. PREMIER CARRIAGE HOUSE - If you want an accent of classic beauty coupled with the reliability of heavy duty steel to really add value to your home, choose from our Premier Carriage House collection. Premier Carriage House doors feature a distinctive three-section-tall design (versus the typical four section door) that provides authentic carriage house styling inspired by the grand estate carriage houses of the 19th Century.