Exercise Profile
  • Target Muscle Group
  • Exercise TypeStrength
  • Equipment RequiredMachine
  • MechanicsIsolation
  • Force TypePush
  • Experience LevelBeginner
  • Secondary Muscles
    Shoulders
Target Muscle Group

Chest

Chest Muscle Anatomy Diagram

Pec Deck Overview

The Pec Deck is a machine exercise designed to target the chest muscles, particularly the pectoralis major.

The movement mimics the action of a chest fly, isolating the chest muscles and helping to improve strength and muscle definition in the upper body.

It's commonly used for both beginners and advanced lifters to work the chest without involving the shoulders or triceps as much.

Pec Deck Instructions

  1. Adjust the seat and set the height so your elbows are at chest level when sitting.
  2. Place your arms on the pads or grips with elbows bent at 90 degrees.
  3. Keep your feet flat on the floor for stability. This is the starting position.
  4. Slowly bring your arms forward, squeezing your chest.
  5. Briefly squeeze your chest at the peak of the movement.
  6. Control the movement as you slowly return to the starting position. This is one rep.
  7. Repeat for desired repetitions.

Pec Deck Tips

  • Don’t over-extend your range of motion. Stop when your arms are slightly wider than your shoulders to maintain tension on the chest.
  • Focus on your chest by squeezing your chest as you bring the pads together.
  • Keep elbows slightly bent and avoid locking your elbows to protect the joints.
12 Comments
ernestas
Posted on: Sat, 08/02/2025 - 20:06

when i go into the stretch position i feel my biceps can someone explain why?

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Roger
Posted on: Tue, 08/05/2025 - 20:24

Hi Ernestas, it is natural to feel a stretch in the biceps as well. This could be because of elbow positioning or simply because of how hard you are gripping the handles. As long as you also feel your chest stretching and the biceps stretch is not painful, you should be okay.

A
Posted on: Wed, 08/07/2019 - 22:31

Would the seated straight arm clip chest give the same effect?

vineet tomar
Posted on: Thu, 05/01/2014 - 03:53

it is best exercise of the pactorals and its strength very higher , nice

sherjeel
Posted on: Sun, 11/11/2012 - 16:20

Is their any other exercise that can be done manually with dumbells or barbell in place of pec dec ?

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Joey
Posted on: Tue, 12/11/2012 - 16:05
Dennis Habern
Posted on: Sun, 03/12/2017 - 12:38

For my chest workout, performed twice a week, on Tuesdays and Thursday, consists of:

1. Cross-overs on knees, 10-12 reps, uppper cables.

2. Cross-overs, bent over at 90 degrees parallel to floor, 10-12 reps, upper cables.

3. Cross-overs, standing, 10-12 reps, upper cables.

4. Middle adjusted cables, 10-12 reps

5. Lower cables, draw in front of face, 10-12 reps

On another day, resort to Flat bench presses, Incline bench presses, and Decline bench presses.

will
Posted on: Tue, 10/30/2012 - 12:06

I think that the pec deck is an awesome exercise for the chest and for people that have a hard time with building their pecs like I do.

André
Posted on: Sat, 10/06/2012 - 20:10

I don't have this machine. What other exercise can I replace this with?

Thank you

Taco3nsalada
Posted on: Wed, 09/14/2016 - 16:10

Dumbell Flys should work, or any similar machine

Nikhil
Posted on: Sun, 05/30/2021 - 22:14

Dumbbell fly

marc
Posted on: Tue, 04/10/2012 - 20:47

leave hands open use your elbows