For having best chest workout , your shoulders must be also getting strong. In such type of a situation, during the workout, you should also start paying attention to the regular workout of the shoulders also. If your shoulders are weak, then you will not be able to lift the heavyweights, which is a necessary workout for having a wide chest. The bench press exercise is the most suitable exercise for making strong shoulders. If it is possible, do some of the shoulder exercises daily as a warm-up before starting the chest workout.