Thus, for a small or medium-sized dog, the size of the crate generally varies around 70 cm in length, width, and height. The dimensions must be adapted proportionally for a medium to large dog, usually requiring a cage of about 100 cm length/height and 90 cm width. The cage must provide the dog with enough space so that it does not feel cramped and can stand up and change its position. A smaller cage is favourable during the winter because it will help to maintain heat. However, a more spacious cage will ensure better ventilation during the summer.