As usual TwoCrows has produced a well written and informative article.
The advice against using chicken wire I particularly liked. I see lots of coops and runs on the forums where chicken wire is used and it’s inviting a disaster.
The article is mainly built around large coops and while ventilation is very important for small coops off the ground such as I use, 1 sq foot of ventilation per bird would leave me with a wall missing.

The explanation of how air flows using roof vents is good; it’s how I build my small coops.
I would have liked to see recommendations for using sheet material for construction; this makes coops easier to clean and provides fewer hiding places for pests.
I’ve become a fan of bare floors in coops. I’ve found bare floors much easier for poop checks but once again, the type of coop you build will have a major bearing on whether this is or isn’t practicable.
It’s an almost impossible task to cover all coop types and this article covers the important ideas which with some thought could be applied to any coop build.
All in all an excellent article.