There are a few strategies you can use to prevent your Rottweiler from damaging furniture or other household items:

1. Provide plenty of appropriate chew toys. Rottweilers have a strong desire to chew, so it’s important to give them plenty of appropriate things to chew on, such as durable chew toys or bones. Make sure the toys are large enough that your dog can’t accidentally swallow them, and supervise your dog while they’re chewing to ensure they’re not getting into anything dangerous.
2. Use positive reinforcement training. You can teach your Rottweiler what is and isn’t appropriate to chew on by using positive reinforcement training. Whenever your dog chews on an appropriate toy or bone, give them plenty of praise and treats. Conversely, when you catch them chewing on something they shouldn’t be, say “No” firmly and redirect them to an appropriate chew toy. With consistent training, your dog will learn what is and isn’t acceptable to chew on.
3. Confine your dog when you’re not home. To prevent your Rottweiler from having access to furniture and other household items when you’re not there to supervise them, consider confining them to a crate or gated area when you’re away. This will prevent them from getting into trouble while you’re gone.
4. Keep household items out of reach. Put away items that you don’t want your dog to chew on, such as shoes, remote controls, and other small items. Keep these items in a closed cabinet or in a room that your dog doesn’t have access to.
5. Manage your dog’s behavior. Try to understand the reason for your dog’s destructive behavior and work to manage it, may it be lack of exercise, anxiety, etc. Also, consider providing mental stimulation through toys or interactive feeder.
6. Consider professional help. If your dog’s destructive behavior is severe and you’re having difficulty controlling it, consider consulting a professional dog trainer or behaviorist. They can help you develop a training plan that addresses your dog’s specific needs and helps you manage their behavior.

It is also important to note that some destructive behaviors may be a sign of an underlying medical condition, or simply bad habit. Therefore, it is best to always consult with a veterinarian or professional behaviorist to understand the reason behind the behavior and to ensure that your Rottweiler is healthy.