I haven't seen that before. Thanks for posting the link. My next mews may be a portable building with barred windows installed. I've been looking at them closely for a while. They have so many different floor plans now that you really have lots of choices and price ranges to chose from. I'm not the best carpenter either.
Nice! I too am much like Bob in that I am lucky if I can cut a 2x4 in half with a straight line. I have been researching portable buildings for some time now and a fav so far is one sold at Lowe's. It is plastic on the outside with a layer of insulation foam covered by an interior smooth plastic. No studs to worry about as the interior is flush and easy to cut in holes for windows etc.
Eagles may soar, but weasels don't get sucked into jet engines "Give a man a fish, and you'll feed him for a day; give him a religion................ and he'll starve to death while praying for a fish."