The answer to how many sets and reps for shoulder width is 12-20 total weekly sets focused specifically on your side delts, using a 10-20 rep range-not the heavy overhead presses you think are building you a wider frame. You're likely frustrated because you've been pressing heavy, maybe even adding front raises, but the person you see in the mirror still has the same narrow silhouette. The reason is simple: you're training the wrong muscle. Shoulder width doesn't come from the front of your shoulder; it comes from the side, a muscle called the medial deltoid. For a beginner, this means about 12 sets per week. For an intermediate lifter, it's closer to 16 sets. This isn't about lifting your absolute heaviest. It's about surgical precision, targeting a small muscle with enough volume to force it to grow outward, creating the illusion of a wider bone structure. Stop thinking about your shoulder as one big muscle and start thinking about the one part that actually creates width.
Your current routine is likely sabotaging your goal for wider shoulders. You believe more pressing equals more size, but it's actually creating an imbalance that makes you look narrower from the front. Let's do the math. A standard 'Push Day' might include 4 sets of flat bench press and 3 sets of incline dumbbell press. That’s 7 sets that heavily recruit your anterior (front) deltoids before you even think about a shoulder-specific exercise. Then you add 3 sets of overhead press. Now you're at 10 sets for your front delts. To finish, you might do 3 sets of lateral raises. The final score: 10 sets for the front delts, 3 for the side delts. This 10:3 ratio is why your shoulders grow forward, not outward. The medial deltoid, the muscle responsible for 90% of your perceived shoulder width, is an afterthought. It's a smaller muscle that doesn't respond to grinding, low-rep sets. It thrives on metabolic stress-a sustained pump created by higher reps (10-20), controlled form, and shorter rest periods. Going too heavy on lateral raises just forces your traps to take over, which pulls your shoulders up, not out, further ruining the wide look you want.
This isn't a vague suggestion; it's a precise, 8-week protocol to add visible width to your shoulders. Stop guessing and follow the plan. Your progress depends on consistency and executing these steps perfectly.
Volume is the primary driver of muscle growth. Your job is to hit your medial delts with the right amount of work each week. Don't count presses. Only count sets that directly target the side delts.
More exercise variety is not better. You need 1-2 movements that you can master. Form is everything. Using momentum is cheating yourself out of growth.
Hitting your shoulders once a week is a massive mistake. That small medial delt recovers quickly. You need to stimulate it 2-3 times per week to maximize growth signals. Here is a sample weekly structure hitting 12 total sets:
This split ensures you hit your weekly volume target without spending hours in the gym on a dedicated 'shoulder day' that is mostly ineffective for width.
This is where everyone fails. They grab the 30-pound dumbbells and swing them wildly, using their traps and back. This is zero-value volume. For the medial delts, the stimulus comes from tension and metabolic stress, not from maximal load. Your goal is to make 15 pounds feel like 50. Select a weight where you can complete 10 reps with perfect form, but the last 2-3 reps are a serious struggle. From there, your goal each week is to add one more rep. Once you can hit 15 perfect reps, and only then, you can increase the weight by the smallest possible increment (e.g., from 15 lbs to 17.5 lbs) and start back at 10 reps. This is progressive overload for hypertrophy, and it's the only way you'll grow.
Starting this protocol will feel counterintuitive, especially if you're used to ego lifting. You need to trust the process and understand what real progress looks like, because it's not what you think.
Overhead Press (OHP) is a fantastic exercise for building overall shoulder strength and mass, primarily in the front deltoid. It is not an effective exercise for building shoulder width. Keep it in your routine for strength, but do not count its sets toward your weekly medial delt volume.
Your front delts already get more than enough stimulation from any and all pressing movements (bench press, incline press, OHP). You do not need to add direct front raises. To build a complete, 3D shoulder, add 8-12 weekly sets for your rear delts with exercises like face pulls or the reverse pec-deck machine.
For medial delt exercises like lateral raises, keep rest periods short. Aim for 60-90 seconds between sets. The goal is to create metabolic stress and accumulate fatigue in the muscle, not to fully recover for a maximal effort lift. This sustained tension is a key trigger for growth.
Your genetics determine your clavicle length (collarbone), which sets the bony foundation for your shoulder width. You cannot change your bones. However, almost everyone is leaving inches of potential muscular width on the table. By adding 0.5-1 inch of muscle to each medial delt, you can add 1-2 inches to your total shoulder circumference, which is a dramatic visual change.
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