Pets can often be destructive when it comes to your furnite. From the moment your dog enters the home, make sure that they know the furniture is off limits. This is a constant task. If you sometimes let them onto it, they will become confused. Discipline is key. If they do not behave properly, put them outside or back into their crate. There are certain sprays available at pet stores such as PetSmart that is designed to keep pets off of the furniture, but it requires constant application and often has a foul odor not only to animals but to people as well. Remember to stay diligent, and your dog will learn that the furniture is off-limits.