Several years ago we had a yellow lab, Jake, a k-9 dropout, and the floor of our truck camper was all dog. He weighed about 115 and was the greatest dog ever. However, after truck camping, not fulltiming we then decided to go with a fifth wheel because of Jake. There was me, DH and the dog but it was crowded. Sadly, after a year or so after upgrading we had to put Jake down. Jake was good in the camper but he always seemed to be where we were stepping. If he was left in the TC for a short amount of time then we always left the AC on for him.