I have had two short box campers and now a long box camper. It is about as long as they get. 11 foot 6". I so much like the bigger everything. It makes a huge difference. Especially if you plan to stay in it a lot of nights. But of course that is only my opinion. But I agree with the other poster who said if you don't have a truck yet and want to get into truck camping I would get a long box also. It leaves all your options open. Long and short box. I had a one of my short box campers on my long box truck and it worked great.