4-Post Power Cages

The rack you train inside. Four uprights with safeties running the full depth, so a squat that goes wrong gets caught wherever you happen to be standing — not just where a spotter arm reaches.

Shop the range ↓Is a cage right for me?
Pictured: Hydra Four Post Power Rack · from $359.99
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The range

Every 4-post cage we make

From the one most people start with to the one a university buys. Cards say what each needs from your room, not what size its tubes are.

19 SKUs
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Who it's for

Is this your rack?

The honest version. If the right-hand column describes you better, follow the link — you'll get a better gym for less money.

This is your rack if…

  • You train alone. Failing a heavy squat with nobody home is the single scenario a cage exists for. Safeties catch the bar at any point in the lift.
  • You have 8 ft of ceiling. And a 4' × 4' patch of floor you can give up permanently.
  • You want the whole attachment range.  30 things bolt onto these — more than any other shape we make.
  • You'd rather buy once. This is the shape people stop upgrading from. The next step up buys storage, not capability.

Look elsewhere if…

  • Your ceiling is under 7'6". A cage needs headroom for the pull-up bar. Squat stands fit under 7 ft.
  • The room has another job. A cage sits there all week whether you lift or not. Folding racks go back to six inches.
  • You want to walk straight in. A cage means stepping round uprights with a bench. Half racks are open at the front.
  • You want plates off the floor without bolting pegs on. 6-post racks have a storage bay built in.

What you give up

Floor space, permanently. You are training inside a box — that is the entire point, and it is also the cost. The cage occupies its 4' × 4' whether you're lifting or not, and getting a bench in and out means going round an upright rather than straight in.

If that irritates you more than the safety is worth, the half rack is the honest alternative: you keep the pull-up bar and the same attachment range, and you trade full-depth safeties for spotter arms that only catch the bar where you set them.

Then look at Half RacksSame pull-up bar, same attachment range, and you walk straight in. See them →

Attachments

Skip the part names. What do you want to be able to do?

All 30 of these fit a Hydra 4-post. The cage is the shape with the fewest exceptions — almost everything we make bolts onto one.

I want to

Squat heavy with nobody home

The reason to own a cage rather than a stand. Safety straps run across the full depth and catch the bar wherever the rep fails — not just where a spotter arm reaches.

Safety Straps — from $38.99✓ Comes with every rack on this page

I want to

Do pull-ups

A bar spans the top of every cage in this range. Choose a fat grip to hammer your forearms, or skinny to rep out more.

Straight Pull Up Bar — from $55.99✓ Fits your rack

I want to

Get the plates off my floor

Pegs bolt onto the back uprights and hold your plates — which also adds the ballast that stops a cage shifting on a deadlift.

Bolt-On Plate Pegs — from $44.99✓ Fits your Hydra

I want to

Train my back without a cable machine

A chest-supported pad bolts to the uprights, so you can row heavy without loading your lower back.

Seal Row Pad — from $127.99✓ Fits your Hydra

I want to

Add a cable stack

Lat pulldown and low row hang off the back of the cage. Worth knowing before you buy: the tower adds roughly two feet of depth behind the rack.

Lat Pulldown / Low Row — from $594.99✓ Fits — check you have 6 ft of depth

I want to

Train legs properly

Leg curl and extension in one attachment, pinned inside the cage — the two movements a barbell alone can't give you.

Leg Curl / Leg Extension — from $284.99✓ Needs the depth of a 4-post

Not quite right?

The rack either side of this one

Nobody should buy 200 lb of freight because it was the page they happened to land on.

← Step down Half Racks

The whole attachment range without training inside a box. Bolt it down or load the base.

4 racks · from $583.99
You are here 4-Post Cages

Four uprights means full-length safeties. The bar gets caught wherever it falls.

11 racks · from $359.99
Step up → 6-Post Racks

Two extra uprights out back carry the plates, the cable stack and everything else you bolt on.

3 racks · from $1,076.99

Does the room have another job? If it can't be a gym seven days a week, a folding rack does most of this and gives the floor back.

See folding racks →

Or make sure you're not missing something

You are here 4-Post Cages 11 racks · from $359.99 Squat Stands 4 racks · from $299.99 See them → Half Racks 4 racks · from $583.99 See them → 6-Post Racks 3 racks · from $1,076.99 See them → Folding Racks 5 racks · from $399.99 See them →
Ceiling it needs 8 ft 7 ft is fine 8 ft 8–9 ft 8 ft
Floor space Medium Smallest Small Largest Folds to ~6"
Upright heightHow tall the rack itself builds 72" – 111.25" 72.5" – 111.25" 72" – 110.25" 72" – 108" 72" – 108"
Catches a failed rep Full-length safeties, wherever it falls Nothing does Spotter arms, at the height you pinned them Full-length safeties, wherever it falls On the 4-post cage, yes. Not on the 2-post
Best for Training alone at your limit Tight spaces, low ceilings Most home gyms Storage, cables and heavy traffic A room with another job
Attachments that fit 31 on a Hydra, 27 on a Manticore 26 on a Hydra, 24 on a Manticore 28 on a Hydra, 24 on a Manticore 32 on a Hydra, 27 on a Manticore 25 on a Hydra, 18 on a Manticore
Racks to choose from 11 racks · 19 SKUs 4 racks · 6 SKUs 4 racks · 8 SKUs 3 racks · 5 SKUs 5 racks · 9 SKUs
Cheapest way in $359.99 $299.99 $583.99 $1,076.99 $399.99
What you give up floor space in front of the rack — you train inside it, not before it a safety net — nothing catches the bar if a rep fails full-depth safeties — spotter arms only catch the bar where you pinned them a lot of room — this is a facility frame in a garage a free-standing frame — it bolts to your wall, and the timber to do that isn't in the box

Swipe the chart to compare →

Still not sure

Then don't guess

A cage is 200 lb of steel on a freight truck. It's worth two minutes to get it right.
Which rack is right for me? The buying guide — every shape, who it suits, in plain English. No spec sheets.Read it →
Send us your garage A photo and your ceiling height. We'll tell you exactly what fits.Reply in 1 day →
Talk to a human 1-888-718-7997. They own these racks themselves.Mon–Fri →
Show me every rack All 27 racks, all five shapes, in one grid.Back to all racks →

Bells of Steel produces feature-rich, warranty-backed power racks that will last a lifetime in your home or commercial gym. We design our racks in-house and fine-tune them on your feedback — so you get the highest quality-to-price ratio possible.

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