Dumbbell Bench Press (Flat)
The flat dumbbell bench press is a pressing exercise where you lie on a flat bench and push a dumbbell up in each hand. It mainly builds the chest, with the triceps and the front of the shoulders helping. It suits beginners and experienced lifters alike, because each arm works independently and the dumbbells let your arms move in a natural path.
Muscles worked
The Dumbbell Bench Press (Flat) mainly works your chest, with your triceps and anterior delts helping.
Setting up
- Set a flat bench and pick up a pair of dumbbells you can control for your planned reps. Start lighter than you think you need to.
- Sit on the end of the bench with the dumbbells resting on your thighs. Lie back and use your knees to help lift the dumbbells up to chest height, one at a time if needed.
- Plant your feet flat on the floor, roughly under your knees or slightly behind them, and keep them still throughout.
- Pull your shoulder blades back and down into the bench, as if tucking them into your back pockets. Press the dumbbells up so they sit over your chest with palms facing your feet.
How to do the Dumbbell Bench Press (Flat)
- Start with the dumbbells directly above the middle of your chest, arms straight but elbows not locked hard.
- Breathe in and lower the dumbbells slowly over about two to three seconds, letting your elbows travel out and down at roughly 45 degrees from your body, not flared straight out to the sides.
- Keep lowering until your upper arms are about level with the bench and you feel a stretch across your chest. The dumbbells should end up beside the lower half of your chest.
- Pause briefly at the bottom without letting the weights sink or bounce.
- Breathe out and press the dumbbells up, driving through your palms and thinking about squeezing your chest muscles together. The dumbbells should move up and slightly inwards.
- Finish with the dumbbells over your chest, arms straight but not slammed into lockout, and your shoulder blades still pinned to the bench.
- When your set is done, lower the dumbbells to your thighs, then sit up. Don't drop them from the top.
Form tips
- Keep your shoulder blades squeezed back and down for the whole set. If your shoulders roll forward off the bench, the weight is too heavy or your setup has slipped.
- Stack your wrists over your elbows so the dumbbells sit directly above your forearms. Don't let your wrists bend back.
- Lower for two to three seconds, then press up with purpose. Control on the way down is where most of the chest work happens.
- Imagine bringing your biceps towards each other as you press, rather than just pushing the weights towards the ceiling. This helps you feel it in your chest.
- Keep your head, upper back and bum on the bench, with your feet planted. Lifting your hips to grind out reps takes work away from the chest.
Common mistakes
Elbows flared out wide
Tuck your elbows to about 45 degrees from your sides as you lower. Your upper arms should look like an arrow shape from above, not a T.
Dumbbells too heavy to control
Drop the weight until you can lower for a slow count of two to three and press up smoothly with both dumbbells moving together. Add weight gradually when every rep looks the same.
Bouncing or clanging the dumbbells at the top
Stop with the dumbbells hovering over your chest and your arms straight. Keep tension on the chest instead of resting on locked-out joints.
Cutting the range short
Lower until your upper arms are about level with the bench and you feel a stretch in your chest. If that feels uncomfortable in your shoulders, reduce the weight and stop if it hurts.
Sets and reps
| Build strength | 3-5 sets of 4-6 reps with a challenging weight, resting 2-3 minutes between sets. |
|---|---|
| Build muscle | 3-4 sets of 8-12 reps, resting 60-90 seconds, finishing each set with 1-2 good reps left in the tank. |
| Fat loss and general fitness | 2-3 sets of 12-15 reps with a lighter weight, resting 45-60 seconds, as part of a full-body session 2-3 times a week. |
Pick a weight where the last rep or two of each set is hard but your form stays clean. When every set feels easy, it's time to go up.
Dumbbell Bench Press (Flat) alternatives
Machine taken, or want some variety? These work the same main muscles.
Dumbbell Bench Press (Flat) FAQs
Is dumbbell bench press better than barbell bench press?
Neither is better for everyone. Dumbbells let each arm move freely and show up any difference between sides, while a barbell lets you load heavier in smaller jumps. Many people use both.
What weight should I start with on dumbbell bench press?
Pick a pair you can lift for 10-12 controlled reps while keeping good form, which for many beginners is fairly light. If your elbows flare or the dumbbells wobble, go lighter. Increase the weight in small steps once every rep feels steady.
How low should I lower the dumbbells?
Lower until your upper arms are roughly level with the bench and you feel a stretch across your chest, keeping your shoulder blades pinned back. Don't force extra depth. If you feel pain in your shoulders, stop and get it checked.
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