Scratching Is Normal — the Location Is the Problem
Your cat is not scratching the sofa arm to be difficult. Scratching keeps claws in condition, stretches the shoulders and back, and leaves scent from glands in the paws. Punishing it therefore misses the point and often just moves the behaviour to when you are out. The workable goal for this cat is narrower: keep the scratching, change the surface. That starts by accepting the exact place he has chosen, because that location — near a sleeping spot, a doorway or a busy room — is part of why he scratches there at all.
Place the Replacement Beside the Favourite Spot
Set a post or scratching pad immediately in front of the surface he uses, not across the room where you would prefer it to live. A tall, stable post suits a cat who stretches up a door frame; a flat or gently angled pad suits a cat who rakes along carpet or a low chair leg. Stability matters more than appearance: a post that wobbles when he leans in will be abandoned after one try. Temporarily cover the original surface with a smooth throw or move a piece of furniture against it, so the easy old option is less available while the new one is discovered.
Make the New Surface Worth Choosing
Entice him onto the replacement rather than carrying him to it and pressing his paws down, which most cats resist. Drag a wand toy up and across the post so his claws catch naturally in the material, then reward him and let him finish the scratch. Keep these invitations short and end them while he is still interested. If he returns to the covered furniture, calmly interrupt, draw his attention back with the toy and reward the correct surface again. Repeating that same exchange, in that same spot, is what turns a one-off success into his default.
Move the Post Only After the Habit Has Shifted
Once he chooses the post on his own for several days running, you can inch it toward the place you would rather keep it — a hand's width at a time, with days between moves. Shifting it in one jump often restarts the furniture scratching, because from his perspective the good surface has simply vanished from where scratching happens. Leave a second acceptable surface near his sleeping area if he also scratches on waking, since many cats scratch as part of that first stretch and will use the nearest suitable thing.
Check Claws, Stress and Pain if Scratching Suddenly Changes
A long-standing furniture preference is a training issue, but a sudden change deserves a closer look. Overgrown or split claws can make scratching more frantic, so check whether the claws themselves need attention from a vet or groomer. A cat who begins scratching doors or walls after a household change may be marking from insecurity rather than maintaining claws, and that cat needs the underlying disruption addressed as well as a post. If scratching is paired with limping, chewed paws or reluctance to jump, have a vet examine him before treating it as a habit problem.
Keep Everyone Reinforcing the Same Surface
Redirection collapses when one person rewards the post and another shouts at the sofa, because the cat learns about people rather than about surfaces. KinsLe helps the household stay aligned through Care Teams, where the short daily play session at the post and a note on whether he used it can be handed to whoever is home, with completed checks timestamped so progress is visible to everyone.