My old shop had the door on the gable end. I used a single 16' door that was off set to one side a bit. That gave me a parking spot up against the one wall and the other side had extra room to the side so that I had a wide bay with a bench on the side. So basically the gable end was a 2' wall, 16' door, and a 5' wall. That extra room inside the 5' wall made a lot nicer work area.
I know that it does not answer you question but I was very happy That I did things that way. If you look at the new shop below you will see that I went so far as to only use two 10' doors on the 48' walls. For me I think that to many shops have to much door and not enough shop. But that is not wrong, just the way I work and use my shop.
If still planning look here
http://metalbuildinginsulation.com/newconstruction.html for insulation. I highly recommend the plastic faced fiberglass that sandwiches between the metal and wood. Getting some thing between the metal and interior will keep condensation at bay.
lg
no neat sig line
