Measurement Guides for Airline Pet Carrier-Crate-Kennels

Guidance for Calculating Properly Sized Pet Airline Shipping Containers

The size of the container (crate, kennel, carrier) must be such that it will allow the pet to stand in a natural position, turn around easily and to lie down in a natural manner at all times.

The images above gives measuring directions and a guideline for calculating the correct size airline shipping container for your pet/s. They relate to a pet standing in a natural position.

Pet Measurement:

A = length of the pet from tip of nose to root of tail.

Airline Kennel Inside Measurement Calculator
Kennel SIZE Calculator

B = height from ground to top of leg or elbow joint

C = width across right & left shoulders

D = height of the pet in natural standing position from ground to the top of the head or the tip of the ear in erect ear breeds. (for a cat you might find it easier to measure height while cat is sitting with head erect)

Minimum Container Dimensions are:

Length = A+1/2 of B

Width = C x 2 (1 pet) or C x 3 (2 pets)

Height = D


Kennel true length diagram
Inside kennel dimension (capacity) Does NOT include the doorway or side rims. Listed and advertised dimensions includes entire outside measurements.



inside kennel vs outside kennel
Outside vs Inside Kennel


airline crate sizing guides














Guide for Purchasing Right size Airline Kennel

Chihuahua Airline kennel100

Vari Kennel or Sky Kennel #100 (SMALL)

21″L x 16″W x 15″H OUTSIDE Dimensions (Advertised size)

INSIDE Dimensions (usable capacity) 17″L x 14″W x 14″H

(Actual Crate Weight: 7 Lb)

Note: 100 Kennel has a handle, Square Corners and does NOT have pre-drilled holes around door for cable ties. PetMate has not yet re-designed the series 100 with newest features.

ATTENTION: 1/1/12 British Airways has just announced they will no longer accept a size 100 for any pets.  They are now requiring all pets to travel in a 200 – 26″ x 18″ x 19″ or larger even for a small pet.

Recommended for: Cats, Toy Poodles, Yorkshire Terriers, Chihuahuas, Shih Tzus, Miniature Pinschers, Pomeranian, Papillon

Beagal Airline Carrier 200

Vari Kennel or Sky Kennel #200 (MEDIUM)

28″L x 20.5″W x 21.5″H OUTSIDE Dimensions (Advertised size)

INSIDE Dimensions (usable capacity) 24″L x 18.5″W x 20.5″H

(Actual Crate Weight: 15 Lb)

Note: 200 Kennel has a handle, Newest version has Round Corners and pre-drilled holes around door for cable ties.

Recommended for: Large Cats, Bassett Hounds, Beagles, Shelties, Mini Poodles, Lhasa Apsos, Cocker Spaniels

Jack Russel Terrier Airline Kennel 300

VariKennel or Sky Kennel #300 (INTERMEDIATE)

32″L x 22.5″W x 24″H OUTSIDE Dimensions (Advertised size)

INSIDE Dimensions (usable capacity) 28″L x 20.5″W x 23″H

(Actual Crate Weight: 18 Lb)

Note: 300 Kennel does NOT have a Handle, Newest version has Round Corners and pre-drilled holes around door for cable ties.

Recommended for: Springers, Border Collies, Bull Dogs, Boston Terrier, Fox Terrier, Basenji, Keeshond, Standard Poodles

Dalmation Vari Kennel 400


VariKennel or Sky Kennel #400 (LARGE)

36″L x 25″W x 27″H OUTSIDE Dimensions (Advertised size)

INSIDE Dimensions (usable capacity) 32″L x 23″W x 26″H

(Actual Crate Weight: 23 Lb)

Note: 400 Kennel does NOT have a Handle, Newest version has Round Corners and pre-drilled holes around door for cable ties.

Recommended for: Boxers, Dalmatians, Collies, Airdales, Setters, Australian Shepherds, Dobermans, Chow Chow, Britanny, Chinese Sharpei, English Springer Spaniels

Rottweiler Airline Kennel 500


VariKennel or Sky Kennel #500 (XLarge)

39″L x 26″W x 30″H OUTSIDE Dimensions (Advertised size)

INSIDE Dimensions (usable capacity) 35″L x 24″W x 29″H

(Actual Crate Weight: 27 Lb)

Note: 500 Kennel DOES NOT have a Handle, Newest version has Round Corners and pre-drilled holes around door for cable ties.

Recommended for: Afghans, Labrador Retrievers, Pointers, Shepherds, Rottweilers, Samoyed, Siberian Huskies

St. Bernard Airline Crate 700

VariKennel or Sky Kennel #700 (Giant)

48″L x 32″W x 35″H  OUTSIDE Dimensions (Advertised size)

INSIDE Dimensions (usable capacity) 44″L x 30″W x 34″H

(Actual Crate Weight: 44 Lb)

Note: 700 Kennel does NOT have a handle, has Square Corners and does NOT have pre-drilled holes around door for cable ties. PetMate has not yet re-designed the series 700 with newest features.

Recommended for: Irish Wolfhounds, Newfoundlands, St. Bernards, Mastiffs, Greyhounds

TIP: For Larger dogs like Great Danes you may want to consider a modified or custom built kennel, For more information go to: Modified and Custom kennels.



Try Our New Airline Kennel Size Calculator: All Kennels are listed with the total outside dimensions ever wonder how much space is actually inside these kennels? Put in the outside Listed Measurements into our handy kennel calculator or the Classification number and it will calculate the interior dimensions – (inside capacity) of your dog’s or cat’s airline travel kennel.

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28 Responsesso far.

    • Absolutely, although most small to med cats fit well in a 100 and med to large cats fit in a 200. Really have not seen any cats that needed bigger than a 200 in my experience.

      • The 200 seems to be quite big for a cat. Is there any problem in using a 200 for a cat, like to container being too big? Would you recommend to buy single kennels one for each cat or is it better to put two cats in one 200 kennel?

        • I think the 200 works great for large cats but for small cats I think it is a bit large. Cats like the confinement makes them feel safer. But unfortunately British Airways requires a 200 or larger they no longer allow the 100 size or smaller for cats. Still puzzling the reasoning behind the rule. But I think cats do fine in a 200 but if your airline will allow the 100 and your cat is small or average size I would go with the 100 for each. Thanks for visiting and be sure and check out for additional info on preparing your cats kennels for safe flight!

  1. Do you sell the crates on your website? If not, can you recommend where to purchase?


    • I am sorry Julie we do not sell the crates, just the accessories for travel. But if you go to they sell crates with our DryFur airline kits they are located in Oregon City very close to us. Thanks for visiting

  2. one cat is 8lbs. and the other is 13lbs. can they be in a large kennel? Also, I have a question about the Deluxe Pet Airline Kit with Foldable Kennel Floor Liner and the Deluxe Pet Airline Kit with Medium Dry Fur Pads, does it bring the pads? Because in the description isn’t included. And wich one would be better for the large crate?
    Thank you 🙂

    • Hi Again Chris,
      The airline kits no longer include the pads mostly because all the combinations began to be too confusing. But as far as what pads I would recommend the Large-Green DryFur PCI. They are cushioned, soft, comfortable and stay flat under your kitties. The foldable pads are just that foldable so they tend to bunch up in the back of the crate, especially with two kitties moving about… So I would recommend the DryFur PCI those are our best Pads…
      Thanks for posting on!

  3. hello
    just a quick question 🙂
    does giant size kennel normally fits a minivan sized car??
    i think it’s way too big and just got worried if i can carry the kennel to the airport..
    (i dont have a car so i need to get a taxi)

    • Hi Suzi,
      That is a good question… I really do not know the answer to that. I do know I have a mini SUV (Rav 4) and we could not fit a 700 in without removing our back seats and moving the front seats forwards to get the back gate closed. If you get a good answer once you travel please email us the info to share on the post.

  4. Hi,
    They advertise the XL/500 crates for Labradors, but our Lab measures 32″ for his natural standing position, ground to top of his head. Would you recommend we purchase the Giant/700 for him? He flew to the UK in his XL/500, but Delta Cargo did question his head clearance.
    Thanks for any advice.

    • Hi Leah, If your labs height is truly 32″ the 500 XL is way too short for him unless you purchase kennel height extensions. That kennel is only 30″ tall on the outside measurement. The inside is usually 1″ less than that. So you are looking at 29″ for the height capacity..
      So Yes I would recommend the 700 which the outside height measurement is 35″ so minus the 1″ that would give him about 34″ for him to stand normally and still 2″ above his head which is the International airlines standard requirement.

      Thanks for posting…

  5. I am looking to purchase international dog shipping crate in Texas or Ok can you advise where i might get one from.

  6. I need to know what size travel crate would be appropriate for my dog. She is a Cavalier King Charles Spaniel, weighing in at 24 pounds. Her length is 26 inches, height from the ground to top of leg is 10 inches, width across right and left shoulders is 7 inches, and height in standing position from top of head to the ground is 16 inches. We will be travelling to England from the East coast of the USA. Thank you for your help.

  7. I’m moving to Europe and am trying to bring my Swiss mountain dog with me. The 700 is the only kennel he will fit in, but I’m having a hard time finding airlines and aircrafts that will take these kennels. Do you know which airlines will accept the 700?
    Thank you

  8. Hi there, my cat is just over 9lb, 21 inches long and 15 inches tall. Having researched carriers, I have a feeling he’s in between sizes. I don’t want to get turned away at the airport, but the average 200 is just massive for him. I have found a kennel called Precision Cargo 200 that is 24 x 16 x 15 : ( or

    Any thoughts on this carrier? I’m having trouble finding information on how the top and bottom are secured together. I’m flying to the UK on Virgin and while they don’t require metal bolts, I’m not 100% sure on dial-latches. Of course, their representatives are only available weekdays, UK time and I need to order this weekend to get it in time with some getting used to for my cat. I would appreciate any advice you have! Many thanks.

  9. Hi, I am shipping my rag doll cat to Australia from America and he is quite comfortable in the small sky kennel (cats like small spaces, he is always squished in somewhere snuggled in the house) However after seeing him in it i think the airline is going to have a problem with the size. Do they allow it to be on the smaller side for cats seeing as though they prefer and feel safer in that?his ears touch the top just
    Thanks I think the answer is going to be medium but I’m just checking. Thanks again

    • Hi Christine, yes it is likely the airline will have an issue if you ragdoll kitty can touch his head to the top of the carrier. And to top it off a few airlines have decided to stop accepting size 100. (British Airways and Lufthansa for instance) Not sure but might be best to go up a size to a 200 just to be safe.

  10. how big should the kennel be for two small beagles (around 12kg each)?
    It would only be for travelling in the car (not airplane). They are always together. I believe they would not like being in two small ones.

  11. Hello, we are moving from Colombia to Indonesia, coming summer. We have a Newfoundland, ‘Mozes’. We would need to have the VariKennel or Sky Kennel #700 (Giant). Do you have a contact point in Colombia, where I could buy one? thank you very much. Happy New Year!!