Carriage house doors are a standard panel from most manufacturers as is 10x9 size. Most companies offer 0”, 3”, and 6” oversize of every size imaginable up to ~20’ as no cost “standard” options so you can fit the door to your home or in snow country you can get a bit better seal via bigger door-frame overlap. So long as your roof is a standard pitch then running track up along the ceiling is easy/cheap/common today, shouldn’t cost extra for that either unless they have to reframe your building. If those are the thicker 2.5-3.5” R19-26 panels I’m assuming ~$3k in doors + $4k installation - pretty common. Installation is the common big expense today, usually $1-3k/door for 2-3 hours/door of a $20/hr installer’s time. Windows and faux-ironwork hanging on the outside of the door are the next common big costs. Be cautious of steel or aluminum facing. Some companies push it as an “industrial” option and charge extra, but for residential doors it’s commonly shite quality bc the metal is ultra thin/soft, not supported well in the center of the panel, and will wrinkle and scratch extremely easily. Fiber is often more resilient and the better/cheaper choice.
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