By 12 years old most cats have stiffness in at least one joint, and the jump onto the bed is the move that exposes it: a 60 cm hop lands with 3 to 5 times body weight on the front legs. A ramp removes that landing. Three heights cover nearly every home, the angle stays at 15 degrees or less, and 4 places are worth the floor space.
What the jump actually costs
A 4.5 kg cat pushing off a 60 cm bed edge loads roughly 18 to 22 kg onto the carpus on landing. On a healthy joint that is a twitch. On a joint with 30 percent less cartilage it becomes a decision the cat makes once and then avoids, which is why the first sign is rarely limping. Watch for 3 smaller changes: it stops using the highest perch, it sits and stares before jumping down, and it lands front feet first with a thud instead of back feet first.
Weight matters as much as age. Every extra 500 g adds about 2 kg of landing load, so a 6 kg cat at 60 cm does nearly 4 times the work of a lean 4 kg cat. Weigh the cat monthly for 3 months before you buy anything, and write the number down.
The 3 heights that cover a house
Measure, do not guess. 20 cm is a step for a low sofa arm, a window ledge, or the first platform of a cat tree. 40 cm is a standard sofa seat and the average bed frame. 60 cm is a high bed, a counter, or a dresser top. Measure floor to the surface the cat lands on, not to the mattress edge, and round up to the nearest 5 cm.
A cat with hip arthritis will often clear 20 cm and refuse 40 cm. That is useful data. Fit the 20 cm step first, run it for 7 days, and add the next height only when the cat takes the first one without pausing at the bottom.
The 15-degree rule and the run length it forces
Fifteen degrees is the ceiling. Past 20 degrees a cat with sore hips will not commit, and a steep ramp it refuses is worse than no ramp, because you will stop believing the cat needs help. Run length follows from the height: run = height divided by tan 15 degrees, which is height times 3.7.
So a 20 cm rise needs 75 cm of run, 40 cm needs 150 cm, and 60 cm needs 225 cm. Most shop ramps are 120 cm long, which is fine up to 32 cm and too steep above it. That single number explains why the cheap ones end up in a cupboard.
If 225 cm will not fit in the room, do not shorten the ramp. Use 2 or 3 graduated steps at 20 cm each with a 25 cm tread depth. Same climb, safer angle, less floor.
The 4 placements
Bed side, sofa end, window perch, and the litter box approach. Those are the 4 moves an older cat makes several times a day, and each one is a jump down of 40 cm or more. Set the foot of the ramp 30 cm out from the wall so the cat can turn into it, and keep 45 cm clear at the top so it does not have to squeeze past a lamp or a cable.
Anchor the top edge under the mattress or behind a 2 cm lip. A ramp that slides 5 cm on first use is abandoned permanently, and cats do not give a second chance to something that moved under them.
Surface, width and rails
Width 30 cm minimum, 35 cm for a cat over 6 kg. Surface should be short-pile carpet or 5 mm cork; laminate and bare wood defeat the point. Side rails of 3 to 5 cm stop a cat from stepping off the edge at night, when most of these trips happen. Rubber feet, or a 10 cm strip of hook-and-loop tape under each end, on hard floors. A 15 kg rating covers any cat plus a landing.
Buy or build: the 5 checks
A 12 mm plywood ramp with 2 carpet strips costs about 15 to 25 USD in materials at 200 cm long, and takes an afternoon. A bought one runs 40 to 120 USD, and the full cost table is worth reading before you pick a size. Either way, check 5 things before it goes in the house: the angle with a phone level reads 15 degrees or less, the run is at least height times 3.7, the surface does not slide under a hand pushed down it, the top edge is fixed, and the whole thing holds 15 kg at the midpoint without flexing.
The 7-day introduction
Day 1 to 2: place the ramp, change nothing else, put 3 treats on the bottom third. Day 3 to 4: put treats at 50 percent and 75 percent of the way up, and lift the cat onto the middle once a day rather than at the bottom. Day 5 to 6: move the food bowl or the favorite blanket up the ramp for 10 minutes twice a day. Day 7: stop carrying the cat to the bed and see whether it uses the ramp unprompted. Most cats take 4 to 10 days; a cat that refuses for 14 days may be in pain rather than stubborn.
When it is not a ramp problem
A cat that stops jumping and also stops eating for 24 hours, drags a hind leg, cries at night, or misses the litter box needs a vet visit before any home modification. Arthritis pain, dental pain and kidney disease all present as a cat that will not climb, and a ramp only hides the first one. If the cat is being treated at home for a wound or sitting still for subcutaneous fluids, keep the ramp clear of cables and drip lines so nothing gets pulled over at 3 a.m.
| Rise, cm | Minimum run, cm | Width, cm | Steps if no ramp | Typical cost, USD |
| 20 | 75 | 30 | 1 step, 25 cm tread | 15-30 |
| 40 | 150 | 30 | 2 steps, 25 cm tread | 30-70 |
| 60 | 225 | 35 | 3 steps, 25 cm tread | 50-120 |
| 80 | 295 | 35 | 4 steps, 28 cm tread | 70-150 |
Two checks before you call it done: the cat uses it at least 3 times a day without a pause, and you have not lifted the cat onto the bed for 7 days straight.
Terms mentioned in this article
Frequently asked
How steep can a cat ramp be before a senior cat refuses it?
Keep it at 15 degrees or less, measured with a phone level against the floor. Past 20 degrees most cats with hip or knee pain will look at it, sit down, and ask to be lifted instead. Because the run length is fixed by the angle, a 60 cm bed needs a 225 cm ramp at 15 degrees; if that will not fit, use 3 steps at 20 cm each rather than shortening the ramp.
Should I use a ramp or steps for an older cat?
Steps if the rise is under 40 cm and floor space is tight, because 2 steps of 20 cm are easier to place and cheaper. Ramps win above 40 cm and for cats with weak hind legs, since a step still asks for a lifted limb while a ramp lets the cat walk. Whichever you choose, keep tread or width at 30 cm or more and fix the top edge so it cannot slide.
How do I get a cat to actually use a new ramp?
Put it in place 2 days before you expect anything, then move treats up it in stages: bottom third on day 1, halfway on day 3, the top by day 5. Lift the cat onto the middle once a day rather than placing it at the bottom, and stop carrying it to the bed on day 7. Most cats accept a ramp in 4 to 10 days; a refusal past 14 days usually means pain, not stubbornness.