The knex house measures 5 red rods by 2 red, 1 grey rod.
It did end up being lengthier this year, but Gus will enjoy the extra room as he's a big cat.
I left a door in the front and cut a hole in the cardboard box so that he can get in, but the wind can't.
It's fairly sturdy.
I left the floor clear of knex parts because I plan on putting in bedding/insulation for him, and this way, I don't have to fight to fit things through tight spaces. I will simply put in the bedding, and then I can place the infrastructure right down in the box.
I plan on decorating the cardboard exterior so that it's not an eye-sore or anything on our front porch. I will try to post a picture of the finished product!
If you know of anyone that wants a sweet cat (I believe he is neutered and front de-clawed), let me know!