Well, after being stalled for a number of weeks, waiting for Grandt Line products from Oak Ridge Hobbies (that's unuther story...), the last component that I needed to verify the measurement of arrived.
That would have been the double (hung or otherwise) door.
I did an initial layout of the opening, based upon the dimensions on the Grandt Line website, and rather than commit to making a hole before I had the parts to install on hand, I waited.
And waited.
But then one day, a box did arrive (having been forwarned by a Quantum View alert). The door set (doubly unhung) was in there, as were most of the windows I needed to finish the building, and a chimbbly, for visual efect only...
The balance of the window may arrive this next month(s) or so...
Anyway, the door set (incredibly unhung, given all the parts that were in that single bag) measured out precisely to the dimensions that had been described on the Grandt Line site, so I could have gotten away with cutting the hole, parts unseen or fondled.
My luck, they would have sent a pair of single doors (hung or not, I don't care at this point), which would have been a real bummer. Sorta like substituting two dwarfs for one Shaquile O'Neal. No gain.
So parts in hand, measurements verified, and electricity still on to the house, I cut the remaining opening in the buildings wall, and finally got the walls braced, bisquited, glued, bradded and clamped tonight.
Oh, also dimensionally cut the roof panels, bevel cut to make a 30 degree pitch, and carved out a ridge beam (out of 2X4) for the roof panels to be supported by from underneath. The roof is gonna weight a ton, but it shouldn't blow off..
Here we are, all clamped up and sitting for the next 24 hours (or so)...
Next up will be rabbet cutting the eaves on the roof panels, once I have the clearances measuered and marked.
(we don't want to get into why I am sooooo glad that I had extra roof panels done. let's just say that I'll be making shake shingled roofs for an out house or two...)