Thank you for your inquiry. Please know for the safety of your pet, we do not manufacture wheels for any of our plastic kennels. Sincerely, Petmate Consumer Services

Thank you for your inquiry. Our kennels are accepted by most airlines, however Petmate always recommends calling the airline and visiting the airline’s website to get the Airliner’s requirements on traveling as each airline has different criteria and specifications. Some airline carriers will not accept the kennel hardware with plastic wing nuts, which all our kennels come with. The Petmate Airline Travel kit includes all metal nuts and bolts if the airlines you are flying with requires this. The airlines do require for your pet to stand up nice and tall, no bending with their legs. If your pet has ears that stick up, the ears may not touch the top of the kennel. Your pet must be able to turn around comfortably in their kennel. Sincerely, Petmate Consumer Services

Thank you for your inquiry. As stated previously the manufacture dimensions are as follows: 40" L x 27" W x 30" H. Therefore the length of the box will be the same length of the entire kennel so it will fit correctly in the box along with the width of the box will be the same as the width of the kennel and the height will be half which is 15" as the top of the kennel is inverted into the bottom or base of the kennel and held together with zip ties with the door and screws nestled in between the two halves. We hope this helps for further clarification. Sincerely, Petmate Consumer Services

Thank you for your inquiry. The manufacture dimensions for this kennel are 40" L x 27" W x 30" H. Sincerely, Petmate Consumer Services

Thank you for your inquiry. The best way to select the perfect kennel size for your pup is to measure him from the top of his head to the floor, then from the tip of his nose to the base of his tail. The height of the kennel should be 3-4 inches taller and longer than your pet so there's ample space to fully stand up, easily turn around and comfortably lie all the way down! Too small and your pet will be uncomfortable; too large and your pet might attempt to use the bathroom in his space.Sincerely, Petmate Consumer Services

I just received this and inside where the animal lays is only 11x19 much smaller than stated ... my 7 lb puppy just fits laying down. Will be returning this ... hope that helps!