Carriage house door offers custom designed garage doors, gates, and shutters that are handcrafted to bring your design vision to life. carriage house door offers custom designed garage doors, gates, and shutters that are handcrafted to bring your design vision to life.. Carriage house collection garage doors combine distinctive carriage house designs and superior insulated steel construction to create a harmonious blend of elegance and strength. 7 foot doors with 3 section designs and 8 foot doors with 4 section designs are available.. Carriage house garage doors. clopay carriage house garage doors combine two of the most commonly desired elements of residential garage doors – the rustic charm of the carriage house and the modern convenience of an overhead-opening garage door..