Just like a new parent needs a crib/playpen for their new baby - a new dog owner should provide a crate for their new pup. Crates are a place your pup can call his own - a place they can go and retreat when they want/need space and a haven for you to place them in for their own safety. Crates are an indispensable aid in housetraining and dealing with misbehavior. A crate can help to calm anxious or hyperactive pups and will help prevent your pup from chewing and destroying your house and possibly hurting himself while you are away. In addition, a crate can be convenient when you need to travel. Your pup will have his familiar bed handy and remain safe.
A rule of thumb for how many hours your pup can be confined is the number of months they are old plus one; i.e. a three month old pup should not be crated more than four hours. Each pup is different. Most pups can hold their needs by four months of age if they're on a consistent feeding and watering schedule. Do not put papers in the cage. We do not want to encourage him to go there. If your pup messes on blankets in the crate, do not put any in with him.
Initially try and introduce the crate early in the day on a weekend and keep the door open to let him investigate the area. Throw him some treats in the crate, play fetch the ball in the crate, store his toys in there and let him go in and out at his own leisure. Feed him in the crate leaving the door open. If he initially hesitates - put the bowl near the crate door so he can reach in and get it.