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The Best Shoulder Workout for 3D Delts

The best shoulder workout builds 3D delts — front, side, and rear. Most lifters neglect the rear delt and side delt, which is exactly why their shoulders look flat.

Pasha Mor

Founder, 1RM.fit · September 11, 2026

The best shoulder workout builds 3D delts — front, side, and rear. Most lifters over-train the front delt (via bench press) and completely neglect the rear delt. Result: hunched-forward posture and flat-looking shoulders.

I'm Pasha, founder of 1RM.fit. Here's the shoulder workout that builds boulder shoulders.

The 3 Deltoid Heads

Front delt (anterior): Already gets massive stimulus from every press (bench, incline, OHP). Rarely needs direct work
Side delt (lateral): The width-builder. Needs high-volume direct work: 12+ sets/week of lateral raises
Rear delt (posterior): Under-trained by most lifters. Needs 10+ sets/week of face pulls, reverse flies

The Best Shoulder Workout (Single Session)

Overhead press: 4×5-6 (heavy compound, all 3 heads)
Seated dumbbell press: 3×8-10 (more front + side delt)
Dumbbell lateral raise: 4×12-15 (pure side delt)
Cable lateral raise: 3×12-15 (constant tension side delt)
Face pull: 4×15-20 (rear delt + upper back)
Rear delt fly: 3×12-15 (isolated rear delt)

Overhead press — the compound anchor of shoulder workouts — Overhead press starts every good shoulder workout. Everything after is targeting a specific head — side or rear.

The Rules for 3D Delts

Skip front delt isolation: Your bench press already trains front delts to death
Overdose the side delt: 12-20 sets per week of lateral raises. It's a stubborn muscle
Never skip rear delts: 10+ sets/week. Face pulls should be in every upper session
Use lighter weights and higher reps: Delts respond better to 10-20 rep sets than 5-rep sets

Common Shoulder Workout Mistakes

Only overhead pressing: Front delts grow, side delts stay flat
Ego weight on lateral raises: Momentum reps do nothing
Ignoring rear delts: Postural rounding, no capped-shoulder look
Only barbell pressing: Add dumbbell variations for range of motion

Cable vs Dumbbell Lateral Raises

Dumbbell: Peak tension at top of movement. Free weight learning
Cable: Constant tension throughout the range. More time under tension

Best answer: alternate both across your sessions. Dumbbell on day 1, cable on day 2.

The best shoulder workout for width is 4 sets of overhead press followed by 12+ sets of lateral raises. Side delts respond to volume in a way no other muscle does.

Track Shoulder Volume

1RM.fit auto-tracks weekly sets per muscle group — including front, side, and rear delt breakdown.

Download 1RM.fit free.

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