Although pork shoulder and pork butt come from the same region of the pig, they are actually cut from opposing ends of the shoulder region. Pork shoulder is cut from thinner end of the shoulder and contains slightly less fat. Pork butt, on the other hand, is cut from the thicker end of the shoulder and is meant to be shredded. It is also typically cheaper in cost that the pork shoulder but both can be used for pulled pork.