Making a Door - in parts

How do you make an external door for your house in the woods? First, cut down a few trees, and let them sit for a couple years.

Then, mill up some 1 3/4" boards on your sawmill:

Then use a dado blade on the borrowed table saw to make tongue and groves on the edges:

Then glue them up:

who's idea was it to make a back door 36" wide?? next time: squaring and planing.