This pattern is written for small dogs- if you are used to crochet and dont have to follow the patterns Numbers of stitches you can make this for a bigger dog. You can ajust by changing the yarn and to a bigger hook size too.
You always have to measure the dog.

For a small dog (chihuahua) I used 1 skein of yarn (2colors)
Hook size 3,5 and sandnes mini alpakka.