It's true that you hit shoulders during your chest and back workouts, but if you want to build massive shoulders you also need to hit them directly. You should train shoulders with just as much intensity, but maybe not with quite as much volume. Heavy presses followed by lateral movements are an excellent way to build massive shoulders.

Below you'll find several routines for shoulders.
Exercise Sets Reps
Barbell Press 4 12, 10, 8, 6
Dumbbell Press 4 10
Upright Rows
4 10
Side Lateral Raises
3 12
Rear Delt Raises
3 12
Basic Shoulders Routine

This workout for shoulders is extremely basic and is good for beginner's or if you just need to get in and out of the gym quickly. This would also be a good shoulder routine if you're coupling body parts such as chest and shoulders, shoulders and traps, or shoulders and triceps.
Exercise Sets Reps
Seated Barbell Press 3 10
Side Lateral Raises 3 10
Arnold Press (dumbbells)
3 10
Massive Shoulders Routine

This workout for shoulders is filled with heavy compound movements to gear you up for some serious muscle growth. You may want to save this workout for a day where you only work shoulders and nothing else.
Powerbuilding Shoulder Workout

This powerbuilding workout for shoulders is designed to help you build both muscle mass and strength as well as enhance your body composition. Powerbuilding workouts are great for those who want to get bigger and stronger yet don't want to gain excess body fat. 
Exercise Sets Reps
Seated Barbell Press 5 5
Seated Dumbbell Press
4 6
Side Lateral Raises
3 12
Bent Over Lateral Raises
3 12
* superset side lateral raises with front raises
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Workouts for Traps
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Exercise Sets Reps
Seated Barbell Press 4 12, 10, 8, 6
Arnold Press (dumbbells)
4 10
* Side Lateral Raises
3 10
* Front Raises
3 10
Shoulder Burn Routine

And a good burn is exactly what you'll get from this shoulder workout. You'll start out with 2 pressing movements, but the Arnold Presses will really ignite your shoulders. Then you'll finish by supersetting side and rear lateral raises. Do this every other shoulder routine to build massive shoulders.
Lateral Raises | Jason Stallworth | TheMuscleProgram.com
Front Raises | Jason Stallworth | TheMuscleProgram.com

Shoulder Workouts

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