Anonymous wrote:OP, whatever you do - buy a bigger tent than you think you need. We got a nice 4 person tent from REI and it's a tight fit for just me and my two kids. If my wife came we'd have to buy a second tent. If you need room for a family of 4 plus a dog I would be looking at tents that claim to be for 8 people minimum, ideally 9 or 10. They just consider room for sleeping bags and not room to move around without stepping on bags or storing any gear inside.
We are a family of four with a medium size dog and have plenty of room in a six person tent. We tend to keep a lot of gear in our car, but it would definitely fit in the tent as well. We love the REI kingdom/wonderland tent.