I'm building my new workshop. It's a 28X32 building, 10' walls. I'm going to partition off a 12' wide area where the garage door is so my workshop will end up being 20X28. In the interest of not loosing heat, I'm using a standard 36" entry door from the outside into the shop. The shop will be heated, the garage won't so I'll be insulating the partition wall and adding a door to it. I want a wide door so I can move large tools/equipment in and out of the shop as needed. For example, my workbench is 4' by 8' so it won't fit through a 36" door. I was thinking about a barn door but I don't know if it can be sealed well enough to keep the heat in the shop. On my old shop (3 states away) I put a steel french door on the front of the shop when I built it. Worked great for getting stuff in and out but they're expensive and I'm a cheap Yankee.
Anybody have any ideas or suggestions as to how I can put a 4' or 5' wide door in the partition wall that will keep the heat in the shop?
Thanks
By the way, this is what the shop/garage will look like.
Garage color graphic.jpg