[HairOfTheDog]

Well, there are lighter weight mesh fences that are out there too, that you could figure out how to put up... keeping doxies in does not take bull-strength mesh... Something between chicken wire and hog panels ought to do the job, and could be set with ordinary posts. The cover issue is mostly for the cats. The cats are the escape pickle.

[RosieCotton]

I wonder if it would be worth it to look into one of those pet doors that only works if a dog has a key thing on its collar? That would mean if I didn't put on on the cats, they couldn't get out, right?

They're expensive, though.