
The short answer
Chewing itself is normal and necessary for dogs, so the goal is to redirect it onto the right things, not eliminate it. Destructive chewing usually means one of a few things: a puppy is teething, an adult is bored or under-exercised, or a dog is anxious, often when left alone. Give the dog a rotation of appealing chew toys and food puzzles so it always has a legal outlet, and manage the space by putting valuables and tempting items out of reach and confining the dog to a dog-proofed area or crate when you cannot supervise. Add real mental enrichment, since a dog whose brain is busy chews destructively far less. If the worst chewing happens only when the dog is alone and comes with other distress signs, treat it as possible separation anxiety rather than a chewing habit. Never punish chewing you find after the fact, because the dog cannot connect it to the act and it only adds fear.
Why dogs chew
Chewing is a normal, healthy dog behaviour, not a character flaw. Puppies chew to soothe teething pain and explore the world, and adult dogs chew to keep their jaws busy and relieve stress and boredom. So the realistic goal is never to stop a dog chewing, it is to make sure it chews the right things. Destructive chewing, the kind that wrecks furniture, shoes, and baseboards, is a sign that the dog has the urge to chew but not enough of the right outlets, or that something like boredom or anxiety is driving it.
It helps to drop the idea that the dog is doing it out of spite or to get back at you. Dogs do not chew the couch because they are angry about being left, they chew because chewing feels good and there was nothing better to do, or because they were anxious. Reading it as an unmet need rather than a personal attack points you straight at the fix: provide better outlets and address the underlying cause.
Give the right outlets
A dog that has plenty of appealing things it is allowed to chew has far less reason to target your belongings. Stock a variety of safe, durable chew toys and rotate them so they stay novel, and keep some always within easy reach. Stuffable toys and food puzzles are especially good, because they combine chewing with a food reward and keep a dog occupied for a long time. When you catch the dog chewing something off-limits, calmly swap it for an approved chew and praise it for taking that instead.
Match the chew to the dog. Teething puppies often like something they can sink into, while strong adult chewers need tougher, appropriately sized items that cannot be quickly destroyed or swallowed. The pattern you are building is the same as with most training: the right target earns praise and a satisfying chew, the wrong target gets calmly removed. Over time the dog defaults to its own toys.
Manage the environment while the dog learns
You cannot train a dog out of chewing the table leg if it gets to practise on the table leg all day. Management buys you time. Dog-proof the spaces the dog has access to by putting shoes, remotes, cords, and anything precious out of reach, the same way you would baby-proof for a toddler. When you cannot actively supervise, confine the dog to a safe, chew-proofed area or a crate with a couple of good chew toys, so the only things available to chew are the right ones.
This is not a punishment, it is prevention, and it works because every destroyed item makes the habit a little stronger while every prevented mistake makes the right habit a little stronger. As the dog matures and reliably chooses its own toys, you can gradually expand its freedom. Puppies and newly adopted dogs in particular need this structure early, and it pays off in fewer ruined possessions and a faster-learned habit.
Enrichment is the real fix
Most destructive chewing in healthy adult dogs traces back to boredom and surplus energy, which means the single most effective thing you can do is enrich the dog's day. Physical exercise matters, but mental work matters just as much and tires a dog out more efficiently. Food puzzles, snuffle mats, scent games, training sessions, and chew projects all give the brain something to do, and a mentally satisfied dog has little drive left over for redecorating your home.
Think of it as filling the time and the mind that would otherwise go into chewing the wrong things. A dog left with nothing to do for hours will find a job, and chewing the couch is an obvious one. A dog that gets a good walk, a training game, and a stuffed chew to work on is set up to relax instead. Enrichment is increasingly called the new exercise for exactly this reason, and for chewers it is usually the missing ingredient.
When chewing is about anxiety
There is one important exception to the boredom story. If the destructive chewing happens mainly when the dog is left alone, and especially if it is focused on doors, windows, and exit points and comes with pacing, drooling, howling, or accidents, the driver is probably anxiety rather than boredom. This is separation-related distress, and adding chew toys alone will not solve it because the dog is too stressed to settle.
In that case, treat it as a separation issue: build up alone-time gradually, keep comings and goings low-key, and give the dog a positive association with being on its own, with professional help for severe cases. The tell is the pattern. Boredom chewing happens whenever the dog is under-occupied, while anxiety chewing is tied specifically to being alone and comes bundled with other signs of distress.
Why punishment backfires
Coming home to a chewed mess and scolding the dog feels natural, but it does not work, because the dog cannot connect a telling-off now to chewing that happened earlier. What it learns instead is that you are unpredictable and sometimes scary when you return, which adds stress and, in anxiety cases, makes the chewing worse. The guilty look people read as an apology is actually appeasement in response to your body language, not an admission.
So skip after-the-fact punishment entirely. Redirect in the moment when you can, manage the environment so mistakes do not happen when you cannot supervise, and reward the dog for chewing its own toys. Pair that with enough exercise and enrichment, and address anxiety if that is the cause. Reward-based, prevention-first training is what actually changes a chewer, and it keeps the relationship calm while you do it.
Further reading: the ASPCA on destructive chewing, the American Kennel Club training library.
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