Is my barn door tall enough for a class a

luberhill wrote:
Ok my pole barn is 28 x 40 ft with 16 ft walls.. my one overhead door is 12 ft wide by 14 ft tall... now the door probably hangs down about 3” from the header so the opening is probably 13’6”
I can probably adjust it to open to the full 14ft
We may get a class C it an A.. probably 29 FYI long or less... what’s the height needed with the ac unit etc