Lori Greer
Cahaba Cats
I think it behooves those of us starting out (and yes, I have only had one litter) to listen carefully and thoughtfully to breeders way more experienced than we are. Brigitte, Lori, patti, kelly, Pam, etc., have more experience than I do and I listened carefully to them as well as Shelby and Sue A when Zuri had kittens and I still listen to them and seek their advice to this day. I learn something new every day.
The experienced breeders on this forum are offering you their wisdom, experience and advice...you want to raise your kittens in an outdoor enclosure? By all means, do so...but don't be surprised at the possible outcome...and as was stated as well...plywood holds urine and will start to smell and degrade, no matter what type of paint you use...it would be better to invest in something more malleable to what you are building for...queens and studs...and kittens...
Frankly, I don't care how long anyone does this, there is always something each of us can learn. From color genetics, to health care, new products, new medicines and research,throw in Mother Nature's diverse and perverted sense of humor... it's a lifetime of learning opportunities for all of us.