Question
Carriers for Large Cats: Size, Hard vs Soft, and Air Travel
What size carrier a large cat needs, hard versus soft carriers for vet visits, carrying a heavy cat, and the airline in-cabin limits that rule out big cats.
Supplies

For Maine Coons, Ragdolls and other big cats
A Maine Coon or Ragdoll male can reach or exceed 20 pounds, by the breed registry's account, and keeps growing for years. We size litter boxes, cat trees, carriers and harnesses for the cat you will have, using veterinary guidance and makers' own limits.
Start with suppliesHow big breeds get
We earn from qualifying purchases through links on this page. How we make money.
Step one
Three numbers decide most of what a big cat needs. Take them once the cat is relaxed, and again as a young large breed grows.
Nose to the base of the tail, with the cat standing or stretched out on its side.
Litter box: about 1.5 times this length (FelineVMA, iCatCare).
Weigh yourself holding the cat, then without it, and subtract.
Tree perches, carriers and self-cleaning boxes: check the maker’s stated limit.
Around the chest just behind the front legs, with a soft tape.
Sizing rules come from the sources cited on each guide; maker limits are the makers’ own claims.
Supplies by need
Box length, tree base, post height, carrier size, harness fit and toys tough enough for a heavy pounce. Each guide gives the sizing rule and its source.
Breed sizes from the registry
Weights as the Cat Fanciers' Association states them. Big breeds also grow slowly: up to three years for a Maine Coon and up to five for a Norwegian Forest Cat.

Long, shaggy coat
Males can reach or exceed 20 lbSource: CFA

Semi-long, silky coat
Males can reach or exceed 20 lbSource: CFA

Thick double coat
Males 12 to 16 lb, females 9 to 12 lbSource: CFA

Triple coat
Males 12 to 18 lb, females 8 to 12 lbSource: CFA
Live listings
A litter box long enough for the adult cat, and a tree with a base and perches built for weight.
Live listings, shown by eBay
Opens eBay in a new tab. Check condition, seller feedback and returns.
Live listings, shown by eBay
Opens eBay in a new tab. Check condition, seller feedback and returns.
Gifts by person
For holidays, birthdays or a new cat's first week home. Size matters here too: check the cat's weight before buying a bed, carrier or tree.
Guides
Question
What size carrier a large cat needs, hard versus soft carriers for vet visits, carrying a heavy cat, and the airline in-cabin limits that rule out big cats.
Supplies
Comparison
How to choose a cat tree for a large, heavy cat: base footprint, post thickness, perch size, maker weight limits, wall straps and furniture-grade options.
Supplies
Question
What a Maine Coon needs from its food: the life stage on the label, calories for an ideal body condition, wide bowls, and the evidence on breed foods.
Care
Guide
How to groom a Maine Coon or other big long-haired cat: how often to brush, the tools to use, what to do about mats, nail trims and whether to bathe.
Care
Guide
How to fit a harness on a large cat, vest versus H-style harnesses, escape-resistant features, harness training, and why a cat is never left tethered.
Supplies
Question
Which large breeds are prone to heart disease (HCM), what gene tests can and cannot tell you, hip dysplasia and SMA in Maine Coons, and what to ask your vet.
Care
Affiliate disclosure
Large Breed Cats is reader-supported. Some links on this page are affiliate links: when you buy through them, we may earn a commission at no extra cost to you. As an eBay Partner, we may be compensated if you make a purchase through our links. Commissions never decide what we recommend or how we rank it. Listings and prices come from our partners and change often, so check the price, condition and seller on the retailer's page before you buy. Read how we make money.