Reverse Pec Deck Alternative: 8 Rear Delt Swaps for Gym or Home

The reverse pec deck trains your rear delts through horizontal abduction: with your chest on a pad, you sweep your arms backwards at shoulder height against resistance. The best alternatives copy that movement. In a gym, a cable reverse fly with the cables crossed is the closest match. At home with a bench, do a chest-supported dumbbell rear delt fly on an incline bench. With only a band, band pull-aparts are the easy pick, and face pulls and prone Y and T raises round out the list for posture and the upper back.

This page is about replacing the reverse (rear delt) pec deck. If your gym's chest fly pec deck is the one you're missing, our pec deck alternative guide covers the chest swaps. For step-by-step technique on the standard dumbbell version, see our rear delt fly guide.

What the machine does that you need to copy

Three things make the reverse pec deck useful. The chest pad pins your torso, so you can't use your hips or lower back to heave the weight. The handles move in a fixed arc around your shoulder, so the path stays honest. And because the machine's lever arms rotate with you, the resistance stays fairly steady through the rep instead of vanishing at one end.

Lose all three and you end up with a sloppy bent-over swing that mostly trains your traps. Keep at least one, preferably the chest support or the steady tension, and the swap works.

It's also worth knowing what won't do the job. In a study of 13 trained men, the posterior deltoid reached only about 3.5% of its maximum activation during the bench press and 2.5% during dumbbell flyes, against 24% in the lateral raise (J Hum Kinet, deltoid activation across shoulder exercises). Pressing barely touches the back of the shoulder, so if you drop the reverse pec deck, you need a deliberate replacement.

Quick picks

Reverse pec deck alternative	Best for	Kit needed
Crossed cable reverse fly	Closest match in a gym	Two cable stacks or a crossover
Single-arm cable rear delt fly	One side lagging	One cable
Chest-supported dumbbell rear delt fly	Best home swap	Incline bench, light dumbbells
Seated or bent-over reverse fly	No adjustable bench	Light dumbbells
Band pull-apart	Anywhere, daily posture work	Light band
Banded reverse fly	Closest home copy of cable tension	Tube band and door anchor
Face pull	Rear delts plus rotator cuff	Cable and rope, or band
Prone Y and T raise	Lower and middle traps, floor only	Very light weights or none

Gym alternatives

1. Crossed cable reverse fly

Set both pulleys at shoulder height. Stand in the middle, grab the left cable with your right hand and the right cable with your left, so the cables cross in front of your chest. Take a small step back, soften your elbows, and sweep your arms out and back until they're in line with your shoulders. Pause for a second, then let your hands drift back across each other slowly.

Crossing the cables does two things: it gives you a longer stretch at the start, and it keeps the line of pull running across your body, which is exactly the direction the rear delt works in. Tension stays on through the back end of the rep, where dumbbells feel weightless.

• Cue: think "hands wide, not back". Reach towards the side walls and the rear delts do the work; squeeze your shoulder blades together and the traps take over.
• Sets and reps: 3 sets of 12 to 20.

2. Single-arm cable rear delt fly

Set one pulley at shoulder height, stand side-on with that cable on your opposite side, and take the handle (or just the cable ball) in your far hand. Pull across and out until your arm is level with your shoulder. Doing one arm at a time lets you brace on the stack with your free hand, which removes most of the urge to rotate your torso. It's also handy if one rear delt is visibly smaller or you keep feeling one side more than the other.

3. Face pull

Attach a rope at upper chest or face height, pull the ends towards your forehead, and finish with your hands either side of your ears and your elbows high. The face pull trains the rear delts alongside the external rotators of the rotator cuff, so it's a better all-round shoulder health move than a reverse pec deck, though it isn't a pure rear delt isolation. If face pulls are already in your plan and you need a variation instead, our face pull alternative guide lists the options, and the full technique is in our face pulls guide.

• Cue: pull the rope apart as you pull it in.
• Sets and reps: 3 sets of 12 to 15.

Dumbbell alternatives

4. Chest-supported dumbbell rear delt fly

Set an incline bench to around 30 to 45 degrees and lie face down with your chest on the pad and your chin just over the top. Let light dumbbells hang straight down under your shoulders, palms facing each other or thumbs pointing slightly down. With a soft, fixed bend in your elbows, raise the weights out to the sides in a wide arc until your arms are level with your torso. Pause, then lower for a slow two-count.

This is the best reverse pec deck swap you can do at home, because the bench does the same job as the machine's chest pad: it takes your lower back and hips out of the lift. Dumbbells do load the movement unevenly, though. They're hardest at the top, when your arms are horizontal, and almost weightless at the bottom, so a pause at the top makes up some of the difference.

You'll need an adjustable bench that inclines and stays stable when you lie face down on it. Our weight bench buying guide covers the options, and if you want something heavy enough not to shift, the METIS adjustable weight bench review looks at a 40kg semi-commercial model.

• Cue: lead with your little fingers and elbows. If the dumbbells move before your elbows do, you're bending your arms and turning it into a row.
• Sets and reps: 3 to 4 sets of 12 to 20.

5. Seated or bent-over reverse fly

No incline bench? Sit on the end of a flat bench or a sturdy chair, fold forward until your chest is close to your thighs, and do the same fly from there. Standing and hinged over works too, but that's the version most likely to turn into a swing, because your lower back is now holding you in position as well. Keep it seated if you can, and use a lighter weight than you would on the chest-supported version.

Resistance band alternatives

Bands make a better rear delt tool than they're often given credit for. A meta-analysis of eight studies found elastic resistance produced similar strength gains to weight machines and dumbbells for both the upper and lower body (SAGE Open Med, elastic vs conventional resistance), and with rear delts you rarely need heavy loads anyway.

6. Band pull-apart

Hold a light band at shoulder height, arms straight and hands about shoulder-width apart, and pull it apart until it touches your chest. Control it back. The band gets harder as it stretches, so the toughest point is at the end of the rep, the same place the reverse pec deck feels hardest. No anchor needed, which is why it's the swap people actually keep doing. Our band pull-apart guide covers grip widths and the overhand, underhand and diagonal versions.

• Cue: shoulders down and away from your ears throughout.
• Sets and reps: 2 to 3 sets of 15 to 25, most days if you like.

7. Banded reverse fly with a door anchor

Anchor a tube band in a door at chest height, take one handle in each hand, and step back until there's light tension. With your arms straight out in front of you, open them out to the sides as you would on the machine. Compared with a pull-apart, the anchor lets you start from a longer stretch with your hands together in front, which is closer to the reverse pec deck's start position. It's the home swap to choose if you liked how the machine felt at the beginning of each rep. Our resistance bands buying guide covers tube sets with door anchors.

Bodyweight and floor options

8. Prone Y and T raises

Lie face down on the floor (or an incline bench) with your forehead on a folded towel. For the T, put your arms straight out to the sides, thumbs up, and lift them a few centimetres off the floor. For the Y, reach your arms overhead at about 45 degrees from your head and lift. Hold each rep for 2 seconds.

These shift the emphasis from the rear delts towards the middle and lower trapezius. One EMG study of prone horizontal abduction found upper, middle and lower trapezius activity all rose as the arms were raised higher, with lower trapezius activity peaking at 120 degrees of abduction, which is roughly the Y position (J Phys Ther Sci, trapezius activity in prone horizontal abduction). So the T is the better rear delt option, while the Y works the lower traps that a reverse pec deck mostly misses. Bodyweight is enough to start with; add 1 to 2kg plates when 15 reps with a 2-second hold feel easy.

Common mistakes

Shrugging. If your shoulders creep up towards your ears, the upper traps are lifting the weight. Set your shoulders down before the first rep and keep them there.

Turning it into a back squeeze. Pinching your shoulder blades hard at the end of each rep shifts the work to your rhomboids and middle traps. That's fine for a row, but for rear delts, stop when your arms reach the line of your body and think about moving your arms, not your shoulder blades.

Going too heavy. The rear delt is a small muscle, and loads that look embarrassing are normal: 2 to 6kg dumbbells for most people. Heavy weights bring in momentum, a bigger elbow bend and the traps. If you can't pause for a second at the top, drop the weight.

Bending and straightening the elbows. Your elbow angle should stay fixed from start to finish. Once it starts changing, the fly turns into a row and your lats and biceps take some of the load.

Rushing the lowering phase. Letting the weights or cables snap back throws away half of each rep. Take two seconds on the way down.

How to programme your swap

Treat a reverse pec deck alternative as accessory work: 2 to 4 sets of 12 to 20 reps, two or three times a week, usually after your main pulling exercises. Rear delts recover quickly, so frequency suits them better than one big session.

A sensible pairing is one fly-style movement (the crossed cable reverse fly or the chest-supported dumbbell fly) plus one posture-focused move (band pull-aparts or Y and T raises). For more options and a weekly plan, see our rear delt exercises guide. Building a set-up from scratch? Our home gym hub covers benches, dumbbells and cable machines.

Recommended reads

• Rear delt fly: how to do it and form tips
• Best rear delt exercises
• Face pull alternatives
• Pec deck alternatives for your chest
• Best weight bench in the UK