mmoffat

The doors were custom to allow me to walk in without ducking, so about 6'6" tall. The mower deck was 42" wide, had a couple inches extra space on each side, so about 48" wide, together, so right about 24" wide for each door.

Those areas at the roof could have been covered with a netting or filled with scrap boards, but I just left them open . I used it as a smoker shed for wile and that upper vent worked great. I never had a problem with critters.

just gravel and dirt. It was North facing, so nothing grew inside.

About $200 on roofing materials. Corrugated tin isnt as cheap as i would've liked

You could put boards or staple screen material up in those gaps to keep critters out. I left them open for ventilation, especially once I moved the propane meat smoker in there! :)

The roof overlaps & overhangs enough that nothing gets rained on. The siding pieces are tight enough that nothing blows in. I would say that it's not water-proof, but it is water-tight. I built in some venting at the top so the whole thing can 'breathe'. That came in real handy when I put the smoker in there last Summer!https://youtu.be/AHgSgYMSkDw

In my area (Cole County, Missouri), no, as this is not viewed by the county as a permanent structure.

Awesome !