The door for our family room that opens to the outside is 4' 6" wide. I did this on purpose for a couple of reasons, I wanted to be able to get a pool table in, and wanted a better than average entrance. Then I priced such a custom door! The man that owned the sawmill where I was buying my rough cut said he would build the door. He used a sheet of the T-1-11 (4X8 sheet that looks like vertical siding), then on the inside he put a layer of insulation sandwiched that between the T-1-11 and finished cedar boards then on the outside he framed it with cedar and put in the diagonal brace. Looks very nice and is quite functional as well as efficient. Since then, moving in a gun safe I have appreciated putting in one large doorway into my home.
If this sounds like something you are interested in, could snap a shot or two that maybe would explain it better. We put it together in a couple of hours after I had planed the wood. I live in a big swing of temps and this has held up well.
God and family, the rest is icing on the cake.
I'm so far behind, I think I'm in first place.
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Host of the 2015 FAMILY WOODWORKING GATHERING