Plan around his size, not a standard cat's
An older Norwegian Forest Cat is a large, heavily built cat, and everyday routines get harder when equipment was sized for a smaller animal. His litter tray needs to be long enough for him to turn around inside without crouching against the sides, his bed must support his full length, and any step or ramp must be wide and firm enough not to flex under his weight. A narrow step that wobbles will teach a cautious senior cat to avoid the route entirely.
Keep his essentials on one floor, as with any senior cat, but check the spacing as well as the level. An older Norwegian Forest Cat turning between a bowl, a bed, and a tray in a cramped corner has to twist stiff hips repeatedly. A clear, straight route with rugs for grip on hard floors reduces that twisting and gives his large paws a secure surface when he rises after sleeping.
Manage the double coat before it limits movement
The thick double coat of an older Norwegian Forest Cat hides two routine problems: mats that tighten against the skin, and weight change you cannot see under the fur. Comb him gently at floor level in short sessions, working through the trousers on his hind legs, the ruff around his neck, and behind the ears, where mats form first. A mat pulling at the skin of the hindquarters can make a senior cat reluctant to climb, groom himself, or use the tray, even when his joints are coping.
Never pull a tight mat out with a brush. Work loose tangles apart with fingers, and ask a groomer or veterinarian about mats pressed flat to the skin rather than cutting close where skin can be nicked. While grooming, run your hands over his ribs and spine each week. In an older Norwegian Forest Cat your hands, not your eyes, will notice whether that broad frame is getting thinner under the coat.
Make feeding, water, and rest suit a large senior
An older Norwegian Forest Cat should eat from a wide, shallow bowl that his whiskers and ruff clear comfortably, set on a non-slip mat in a quiet place. Keep fresh water in a broad, heavy bowl he cannot tip, and consider a second water station near his main resting place during warm weather, because a big cat carrying a dense coat can overheat indoors. Offer his resting options in both a warm spot and a cooler one away from radiators, and let him choose rather than assuming the fluffiest bed is best.
His litter tray deserves the same size check. A low entry helps his hips, but the tray must stay deep and long enough for a large cat to dig and cover. If he perches on the edge or leaves waste uncovered beside the tray, the box is more likely too small or too high than the cat being careless. Scoop often, because a large cat produces more waste and an older Norwegian Forest Cat who finds the tray unpleasant may delay using it.
Divide the daily tasks so nothing is skipped
Short play at ground level, a daily comb-through, tray checks, and a weekly hands-on weight feel are a lot for one person to remember, and an older Norwegian Forest Cat suffers quietly when a task slips. Write the routine down as named tasks: who feeds in the morning, who combs after dinner, who checks the tray last thing at night. Keep sessions brief and let him walk away from grooming or play when he has had enough, because pushing a large, sore cat through handling he resents makes the next session harder.
Contact a veterinarian if your older Norwegian Forest Cat stops grooming his hindquarters, pants or rests in cool places constantly, eats noticeably less, or struggles to rise or turn in his tray. Those changes in a senior cat of this size deserve a prompt check rather than a bigger bed alone. Recording each feeding, grooming, and tray task in KinsLe Care Teams, with completed duties marked by a timestamp, keeps his whole routine visible to everyone helping him.