This pet cot comes in three sizes. M(30*23.6*6.3inch) model dog bed is suitable for small dogs: Corgi, Miniature, Schnauzer, Beagle, etc (It can bear less than 100 pounds). L(36*30*7inch) is suitable for dogs such as Husky, ShibaInu, Border Collie etc(It can bear over 100 pounds). XL(48*36*9inch) model dog bed is suitable for large dogs such as Rottweiler, Golden, Retriever, German Shepherd, etc(It can carry 150-180 pounds). You can compare the above data to determine whether your dogs can sit on it at the same time.