Bench Press: How to Do It, Muscles Worked and Common Mistakes

The bench press is the most popular upper-body strength exercise in the world, and for good reason. Lie back, press a weight off your chest to straight arms, and you load your chest, shoulders and triceps in one efficient movement. It is the benchmark most people use to measure pushing strength, and it scales from a pair of light dumbbells at home to a loaded barbell in a rack. Done well it is safe, satisfying and hugely effective. Done with flared elbows and a bouncing bar it is a fast route to sore shoulders. Here is how to press properly, the muscles it works, and how to keep progressing.

How to bench press

The steps below are for a barbell bench press in a rack, which is the standard. The same cues apply to a dumbbell bench press, minus the rack and unracking.

1. Set your position. Lie on the bench with your eyes roughly under the bar. Plant your feet flat on the floor, pull your shoulder blades back and down, and squeeze them together as if trying to pinch a pencil between them. This gives you a stable base and protects your shoulders.
2. Build a small arch. Keep your backside on the bench and let a natural arch form in your lower back. Your chest should be pushed up towards the ceiling. This shortens the distance the bar travels and keeps your shoulders in a safer position.
3. Grip the bar. Take a grip a little wider than shoulder-width. Wrap your thumbs around the bar (never a thumbless grip) and squeeze hard so your wrists stay stacked over your forearms.
4. Unrack and set. Press the bar out of the rack to straight arms and move it over your chest. Take a breath into your belly and brace.
5. Lower under control. Bend your elbows and lower the bar to touch your lower chest, around the base of your sternum. Keep your elbows tucked to roughly 45 to 75 degrees from your body, not flared straight out to the sides.
6. Press. Drive the bar back up and slightly towards your face, following a shallow curve, until your arms are straight. Keep your shoulder blades pinned to the bench the whole time. Breathe out through the hardest part.

Muscles worked

The bench press is a pushing exercise that shares the load across three main muscle groups, with several others stabilising.

• Chest (pectoralis major). The prime mover. Your pecs pull your upper arms across and in front of your body to press the weight up. A flat bench hits the whole chest, while changing the angle shifts the emphasis.
• Front shoulders (anterior deltoids). Heavily involved in pressing the weight away from you, and even more so on inclines. Adjusting the bench angle changes how much your shoulders contribute (EMG study on five bench inclinations).
• Triceps. The muscles on the back of your upper arm straighten your elbows to finish the rep, so they do more work as your grip narrows.
• Supporting cast. Your forearms and grip keep the bar controlled, your upper back and lats provide a stable platform, and your legs and core brace hard to stop you wobbling. A tight, braced setup is why strong benchers look so solid under the bar.

Grip width shifts the balance between chest and triceps, though less dramatically than gym folklore claims (grip width and muscle activation study). Pick a width that feels powerful and keeps your shoulders happy.

Benefits

• It builds real upper-body pushing strength. Few exercises let you load your chest, shoulders and triceps as heavily or track progress as cleanly.
• It adds muscle to the chest and arms. Progressive bench pressing is one of the most reliable ways to build a bigger, stronger upper body.
• It scales to any setup. A pair of adjustable dumbbells and a bench is enough to start, and you can progress to a barbell in a power cage when you want to go heavier. Strength work like this is exactly what the NHS recommends on at least two days a week.
• It carries over to everyday life. Pushing a heavy door, shoving a stuck car or lifting a box overhead all lean on the same pressing pattern.

Common mistakes

Flaring the elbows. Letting your elbows drift straight out to the sides (a 90-degree T shape) puts your shoulders in a vulnerable position. Tuck them to somewhere between 45 and 75 degrees from your torso so your chest and triceps share the load safely.

Bouncing the bar off your chest. Using your ribcage as a trampoline throws the weight up with momentum instead of muscle, and it can bruise or worse. Lower under control, touch lightly, then press.

Losing your shoulder blades. If your shoulders roll forward off the bench, your chest disengages and the front of your shoulders takes a battering. Set your blades back and down before you unrack, and keep them pinned all the way through.

Lifting your backside off the bench. A small lower-back arch is fine and useful. Heaving your hips up off the bench to grind a rep is not. Keep your glutes in contact with the bench.

Pressing with no leg drive. Your feet are not just there for show. Pushing them into the floor stabilises your whole body and gives you a stronger, safer press. Plant them flat and stay tight.

Variations

Once the flat barbell or dumbbell press feels solid, these variations keep your chest progressing and cover its weak spots.

• Incline bench press. Set the bench to around 30 to 45 degrees to bias the upper chest and front shoulders. Our incline dumbbell press guide breaks this one down in full.
• Decline bench press. A downward angle shifts work onto the lower chest. Useful for variety, though harder to set up safely at home.
• Close grip bench press. Bring your hands to roughly shoulder-width to hammer the triceps while still working the chest. A great pressing accessory for bigger arms.
• Dumbbell bench press. Each arm works independently, so imbalances get exposed and fixed, and you can safely drop the weights if a rep stalls. Ideal for training alone. See our full dumbbell chest workout.
• Floor press. Press from the floor to shorten the range and take the shoulders out of the stretched position. Handy if benching bothers your shoulders.

Sets and reps

A simple plan that works for most people:

• Strength: 3 to 5 sets of 3 to 6 reps with a heavier weight, resting 2 to 3 minutes. Only push heavy singles with a rack and safety bars, or with dumbbells you can safely dump.
• Muscle: 3 to 4 sets of 8 to 12 reps, resting 60 to 90 seconds.
• Learning the lift: 3 sets of 6 to 8 reps with a light weight, focused only on a stable setup and tucked elbows.

Add a little weight or a rep once you can hit the top of your range with clean form on every set. Alternate flat and incline, or barbell and dumbbell, across the week so you train the chest from more than one angle.

Recommended reads

1. The best weight bench in the UK
2. The best adjustable dumbbells in the UK
3. The best barbell in the UK
4. Dumbbell chest workout
5. Home gym equipment guides