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Best Side Delt Exercises For Wide, Strong Shoulders

Updated on September 26, 2025 - Writen by: Isabel Mayfield, BCRPA - Reviewed by April Edwards, MSc, PT Fact checked

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Broad, powerful shoulders come from building the side delts, the muscles that create width and balance across the upper body. When properly trained, they enhance pressing strength, improve stability in overhead movements, and support better posture while reducing the risk of shoulder injuries. Strong side delts not only sharpen aesthetics but also contribute to overall performance by working in harmony with the front and rear delts.

This guide explains how the side delt functions, how it fits into shoulder development, and the most effective ways to train it. You’ll also find the best side delt exercises to achieve lasting growth and symmetry.

Best Side Delt Exercises

Dumbbell Seated Lateral Raise

Shoulder

Cable Lateral Raise

Shoulder

Lateral Raise Machine

Shoulder

What Is The Side Delt?

Lateral Deltoid

Muscles located at the side of your shoulder which gives your shoulders a rounded appearance.

The deltoid is a large, triangular muscle that shapes the shoulder and is divided into three heads:

Anterior deltoid (front delt)
Lateral deltoid (side delt)
Posterior deltoid (rear delt)

Among these, the side delts are especially important because they add width to the shoulders and create a balanced look. Positioned on the outer shoulder, they also stabilize the joint during overhead lifts and help protect against imbalances that can cause injury.

Of the three deltoid heads, the side delts respond best to movement patterns that load them directly. Overhead pressing with barbells or dumbbells not only activates the side delts but also involves the front delts and triceps, helping build overall shoulder mass and stability. Shoulder abduction, such as in lateral raises, applies maximum tension to the side delts and remains the most direct way to target them. Vertical pulling movements like upright rows also recruit the side delts strongly, while engaging the traps and upper back to support balanced development.

Best Exercises To Train The Lateral Delt

To build wider and stronger shoulders, your training should include movements that directly target the side delts. These exercises isolate the lateral head of the deltoid, adding shape, balance, and stability to your upper body. Below are the best side delt exercises to maximize growth and definition.

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Dumbbell Seated Lateral Raise

Equipment:

Dumbbells

Flat Bench Without Rack

Muscle Worked:

Shoulder

View Exercise

The dumbbell seated lateral raise is an isolation exercise designed to target the side delts. By sitting on a bench with dumbbells at the sides, the body is kept stable, reducing momentum and forcing the shoulders to perform the work. From this position, the arms lift out to shoulder height before returning under control.

The primary muscle worked is the lateral head of the deltoid, while the traps and core provide stability. Because the seated position limits cheating, it increases tension on the shoulders throughout the movement. This makes the seated lateral raise one of the most effective choices for developing width and roundness in the shoulders.

How To Do

Sit upright on a flat bench with dumbbells resting at your sides.
Keep your chest tall, core braced, and feet planted on the floor.
With a slight bend in the elbows, raise the arms outward to shoulder height.
Pause briefly at the top, then lower slowly to the starting position.

Form Tips

Keep the torso still and avoid swinging.
Stop at shoulder height to maintain tension.
Use a controlled tempo on both lifting and lowering phases.

Variations & Modifications

Beginners can use lighter weights or resistance bands to reduce strain. For more challenge, slow down the eccentric phase or add partial reps after failure.

Cable Lateral Raise

Equipment:

Wide Cable Pulley Towers

Single Grip Handle

Muscle Worked:

Shoulder

View Exercise

The cable lateral raise is an isolation exercise that emphasizes the side delts with constant tension from start to finish. Performed with both arms at once, it uses dual low pulleys so each hand grips a handle at the sides of the body. From this position, the arms are lifted outward to shoulder height before returning slowly.

The movement directly targets the lateral deltoids, with secondary support from the traps and core stabilizers. Because the cables provide resistance throughout the arc, the shoulders stay under continuous load, making this version highly effective for hypertrophy and control compared to free weights.

How To Do

Attach handles to both low pulleys.
Stand in the center with feet shoulder-width apart.
Hold one handle in each hand with palms facing inward.
Raise both arms outward to shoulder height, then lower under control.

Form Tips

Keep the torso upright and avoid leaning forward.
Lift with a slight bend in the elbows.
Focus on smooth, controlled motion rather than speed.

Variations & Modifications

Use lighter weight for beginners or perform seated to reduce momentum. Advanced lifters can add pauses at the top or use slow eccentrics to increase tension.

Lateral Raise Machine

Equipment:

Lateral Raise Machine

Muscle Worked:

Shoulder

View Exercise

The lateral raise machine is an isolation exercise designed to target the side delts with strict control. Seated with arms positioned against the machine’s pads, both arms lift outward together to shoulder height before lowering back down. The guided path of the machine makes the motion simple to learn and easy to repeat consistently.

This exercise focuses on the lateral deltoids, while the traps and stabilizers play a minor role. Because the machine provides balance and removes momentum, it is especially beginner-friendly. It teaches proper shoulder mechanics, ensures safe progression, and allows focused overload without requiring advanced coordination.

How To Do

Adjust the seat height so the pads align with your arms.
Sit upright with feet planted and chest against the pad.
Grip the handles or position arms against the pads.
Raise the arms outward to shoulder height, then return slowly.

Form Tips

Keep the movement smooth and avoid jerking.
Maintain contact with the backrest for support.
Use a controlled tempo to maximize muscle tension.

Variations & Modifications

Beginners can use light weight for learning the motion. More advanced lifters can try single-arm machine raises or slow eccentrics for added intensity.

Dumbbell Lateral Raise

Equipment:

Dumbbells

Muscle Worked:

Shoulder

View Exercise

The dumbbell lateral raise is the classic exercise for developing the side delts. Performed standing with a dumbbell in each hand, the arms lift outward to shoulder height before returning under control. While some lifters use body momentum to swing the weights, strict form is safer and more effective for targeting the shoulders directly. Using lighter dumbbells ensures better isolation of the lateral deltoids while reducing the risk of injury.

This movement focuses primarily on the side delts, with minor involvement from the traps and core stabilizers. When executed correctly, it is one of the most efficient ways to build rounder, wider shoulders.

How To Do

Stand upright with dumbbells held at your sides.
Keep a slight bend in the elbows and brace the core.
Raise the arms outward until they reach shoulder height.
Lower slowly back to the starting position.

Form Tips

Think of lifting with the elbows for stronger mind-muscle connection.
Avoid raising higher than shoulder level to keep tension on the delts.
Use lighter weights for better control and activation.

Variations & Modifications

Perform the seated dumbbell lateral raise to minimize body movement. Advanced lifters can add slow eccentrics or partial reps for added challenge.

Dumbbell Upright Row

Equipment:

Dumbbells

Muscle Worked:

Shoulder

View Exercise

The dumbbell upright row is a compound exercise that builds the shoulders and upper traps while also activating the side delts. Holding a dumbbell in each hand with an overhand grip, the weights are pulled upward along the torso until the elbows reach shoulder height. The dumbbells are then lowered slowly to the starting position.

This movement targets the traps and lateral deltoids primarily, with assistance from the front delts and biceps. Because it engages multiple muscle groups, it is effective for adding mass and strength across the upper body. Strict form is key to preventing shoulder strain, making moderate loads preferable for most lifters.

How To Do

Stand tall with dumbbells held in front of the thighs, palms facing the body.
Pull the dumbbells upward close to the torso, leading with the elbows.
Stop when elbows reach shoulder height.
Lower slowly under control.

Form Tips

Keep wrists neutral and avoid excessive inward rotation.
Lead with elbows, not the hands.
Stop at shoulder height to protect the shoulders.

Variations & Modifications

Use cables for smoother resistance, or switch to single-arm upright rows for better shoulder alignment. Advanced lifters may try high pulls for a more explosive progression.

How To Get Wide Shoulders

Building wide shoulders requires more than heavy pressing movements. To fully develop the side delts, you need controlled weight, focused abduction exercises like the lateral raise, and progressive overload. Applying these principles ensures the muscles are trained effectively for both strength and shape, leading to broader and more balanced shoulders over time.

Go Light On Weight

Using lighter weights with strict form is one of the most effective ways to grow the side delts. When the load is manageable, you can control the entire range of motion without relying on momentum. This keeps tension on the muscle where it matters most.

Lighter loads also improve mind-muscle connection, allowing you to feel the side delts working through every rep. Instead of focusing on moving as much weight as possible, prioritize smooth, controlled execution with proper shoulder alignment.

The goal is to challenge the muscle without compromising technique. Over time, this approach reduces the risk of injury while ensuring consistent activation of the side delts. By focusing on quality over quantity, you create the right foundation for building width and symmetry in the shoulders.

Focus On The Abduction

The side delts grow best when trained through shoulder abduction, the movement of raising the arms outward from the body. This is their primary function and the most direct way to stimulate them.

While pressing exercises like the overhead press are valuable for overall strength, they should be paired with isolation work such as lateral raises. Prioritizing abduction ensures the side delts receive enough targeted stimulus to add width and balance to the shoulders.

Progressive Overload

Training the side delts with lighter weights and strict form builds a solid foundation, but growth requires gradually increasing the challenge. Progressive overload ensures the muscles continue to adapt and grow stronger over time.

This can be done by adding weight, increasing reps or sets, or adjusting tempo with techniques like a short pause at the top of the raise. A simple rule of thumb is that once you can perform 12–15 controlled reps with good form, it is time to increase intensity. Consistently applying this principle keeps the side delts under progressive stimulus for long-term growth.

Conclusion

Training the side delts is essential for building wider, stronger, and more balanced shoulders. Well-developed lateral deltoids improve stability during overhead lifts, help prevent injuries caused by muscular imbalances, and enhance overall aesthetics with a broader upper body.

For best results, side delt exercises should be combined with movements for the front and rear delts to ensure complete shoulder development. If you want a well-rounded program, explore more shoulder exercises that target every part of the muscle group. This approach will give you both strength and definition for long-term performance and growth.

Frequently Asked Questions

How do you target your side deltoid?

Since the side deltoids are most activated by shoulder abduction, use exercises that involve moving the arm from the body. These include lateral raises, upright rows, and overhead presses.

How many exercises for side delts?

Many exercises can be used to strengthen the side delts, including dumbbell or cable lateral raises, upright rows, and Arnold presses.

Are side delts useful?

Yes, the side deltoids are useful muscles for functional movement and athletics. They help with shoulder abduction, improve shoulder mobility, and also contribute to an aesthetically pleasing upper body.

Can you train side delts every day?

No, you shouldn’t train any muscle group every day. Instead, aim to give yourself one to three days of rest between workouts to allow for optimal muscle recovery.

Resources

Endomondo.com refrains from utilizing tertiary references. We uphold stringent sourcing criteria and depend on peer-reviewed studies and academic research conducted by medical associations and institutions. For more detailed insights, you can explore further by reading our editorial process.

Adel Elzanie and Varacallo, M. (2024). Anatomy, Shoulder and Upper Limb, Deltoid Muscle. [online] Nih.gov. Available at: https://www.ncbi.nlm.nih.gov/books/NBK537056/.
Yanez, C., Vergara, L., Muñoz, V. and Ochoa, D. (2023). Original Article Muscle toning term used in fitness and sports: a critical confusion. [online] ResearchGate. Available at: https://www.researchgate.net/publication/374779541_Original_Article_Muscle_toning_term_used_in_fitness_and_sports_a_critical_confusion.
Prabhakar, A., Narayan, J., P Swathikaa, Kumareswaran, S.I. and Subramanian, K.N. (2022). Current concepts on management of cuff tear. Journal of Clinical Orthopaedics and Trauma, [online] 28, pp.101808–101808. doi:https://doi.org/10.1016/j.jcot.2022.101808.
Wang, H., Chen, L., Xu, G. and Liu, H. (2024). Biomechanical effects of deltoid muscle atrophy on rotator cuff tissue: a finite element study. Scientific Reports, [online] 14(1). doi:https://doi.org/10.1038/s41598-024-67368-0.

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