Why does my cat scratch furniture even though it has a scratching post?

Often the post is the wrong type, too short, or in the wrong location. Cats scratch where they spend time — if the post is tucked in a corner nobody visits, it will not be used. Try a post that matches the material and orientation of what your cat actually scratches, placed right next to the damaged spot. The International Cat Care guide on scratching has useful detail on post selection.

Is scratching a sign of stress?

Scratching is normal, but a sudden increase can signal stress — especially if it appears near doors, windows, or other cats' resources. Cats also scratch to leave scent marks and visual signals. If your cat's scratching has changed noticeably, review our guide on reading your cat's body language and consider whether anything in the environment has changed recently.

Should I trim my cat's claws?

Nail trimming reduces the damage from scratching and is especially helpful for indoor cats. Use cat-specific nail clippers, cut only the transparent tip (not the pink quick), and do one or two nails per session if your cat is resistant. Many vets and groomers offer this as a service. See your vet if nails become ingrown or overly long.

What about nail caps (Soft Paws)?

Vinyl nail caps glued over the claws prevent scratching damage without removing the claw. They last 4–6 weeks and need replacing as nails grow. They are a reasonable short-term solution while building a scratching post habit, but the cat still needs to be able to scratch for behavioural health.

Are cats ever destructively scratching out of boredom?

Yes. Cats with insufficient stimulation — particularly indoor cats — may scratch excessively. Ensure your cat has daily interactive play and mental enrichment. Our feeding calculator's activity inputs can help flag whether your cat is getting enough daily engagement.

Cat Scratching Behaviour: Why Cats Scratch and How to Redirect It

Why cats scratch

Scratching serves four distinct functions:

Claw maintenance: Removes the outer sheath of old nail and exposes the sharp layer beneath.
Scent marking: Interdigital glands between the toes deposit pheromones onto the scratched surface — leaving both a chemical and a visual signal for other cats.
Muscle stretching: The full-body extension of a good scratch session stretches the back, shoulders, and forelegs — cats typically scratch immediately after waking for this reason.
Stress relief: High-arousal situations — other cats nearby, changes to the home — often trigger scratching at thresholds like door frames and windows.

Research published in the Journal of Applied Animal Behaviour Science confirms that cats show a strong preference for scratching surfaces near locations they use frequently — their sleeping area, the main entrance, and beside resources. Providing posts in those locations reduces furniture scratching significantly.

Choosing the right scratching post

Vertical post

Needs to be tall enough for a full body stretch — at least 90 cm for an adult cat. Must be stable; a wobbling post will be abandoned.

Best for: cats who scratch walls, door frames, and the back of sofas.

Horizontal scratcher

Flat corrugated cardboard or sisal mat on the floor. Many cats who scratch carpets prefer a horizontal surface.

Best for: cats who scratch carpets, rugs, or the bottom of furniture.

Angled scratcher

A compromise between vertical and flat. Useful if your cat scratches both orientations, or as a first post for kittens.

Best for: kittens and cats that have not shown a strong preference yet.

Materials that work

Sisal rope or sisal fabric is the most popular material — it has a satisfying texture and withstands heavy use. Corrugated cardboard is cheap and effective for horizontal scratchers. Avoid carpet-covered posts; carpet is indistinguishable from the floor and may encourage floor scratching.

How many posts, and where

The general rule is one post per cat, plus one additional. For a two-cat household, three posts. Place them:

Next to wherever furniture has already been scratched
Near sleeping spots (cats scratch immediately after waking)
Near doors or windows where cats sit and watch outside
Near the litter box area (especially in multi-cat homes where resources cluster)

Protecting furniture during the transition

While your cat learns to use posts, reduce the appeal of existing spots with double-sided sticky tape (cats dislike the texture), aluminium foil, or a purpose-made furniture protector panel. These can be removed after two to four weeks of consistent post use.

Never declaw. Onychectomy (surgical removal of the claw and last bone of each toe) is prohibited in the UK, much of Europe, and many US states. It is painful, causes long-term gait problems, and removes the cat's primary defence mechanism. The International Cat Care position on declawing aligns with WSAVA guidance that no welfare-accepted alternative exists.

Cat scratching behaviour: why cats scratch and how to redirect it

Why cats scratch

Choosing the right scratching post

Materials that work

How many posts, and where

Protecting furniture during the transition

Frequently asked questions