You get a hold of a great power rack or squat rack, but then you find out that the company doesn’t make the attachments / accessories that you want.

No problem! You should be able to find a compatible attachment or accessory, as long as your rack is made with one of a few standard configurations.

Compatibility

The key specs are:

The tubing size of the uprights, typically one of: 2″x2″, 2″x3″, or 3″x3″. The hardware/peg diameter that fits into the holes in the uprights. The hole spacing in the uprights, ie: the distance between holes on center. This is only an issue for larger attachments that use 2 holes, with a peg and a locking pin. Some racks have Westside spacing, which is 1″ spacing at a certain height range for setting bench press safety bars just right, and otherwise 2″ spacing above and below that.

August 2020 Update: This guide used to denote the hole size in the uprights. I have changed everything to the hardware size, which is always a little smaller than the hole size. There are only a few sizes of hardware used across all brands (1/2″, 5/8″, 3/4″ or 1″), so this gives cleaner numbers and eliminates confusion. In the next update I’ll see if I can gather the hole spacing for all the major brands.

When Slightly Wrong Sized Attachments are Ok

An attachment can fit in a larger hole than it’s made for, but it will be able to wiggle and tip down a little.

Similarly, attachments can fit onto slightly smaller tubing than what they were designed for. This can be less bad than the wrong hardware size, because you can glue shims (UHMW plastic is best) to the inside of the attachment’s bracket to make it fit.

Some attachments work well enough even if they’re loose. Some don’t have enough pressure put on them to make a safety issue, like a rope anchor, but it could still rattle.

The steel gauge (wall thickness) of rack tubing does not factor in. The tubes are fabricated to match the right outside diameter.

When You Should Not Use the Wrong Sized Attachments

I don’t recommend you use certain safety-critical attachments that don’t fit quite right, such as J-hooks, steel safety arms, or plate holders, unless you have a good way of retrofitting it to stay snug. Use some common sense, visualize it, and you’ll get the idea.

You could run into poorly welded attachments. If you’re stoked to get those new crazy cheap J-hooks and your heart falls into your stomach as you find it doesn’t fit very snugly, well, it probably fits the same on that manufacturer’s own rack. Attachments as a rule don’t fit perfectly snug, but better brands like Rogue and Rep Fitness have the highest and most consistent quality, in contrast to the gamble you may be taking on a cheaper brand like Titan Fitness or some Amazon-only brand.

List of Power Rack Attachments by Size

These are ordered smallest to largest.

For a lat pulldown / low row cable system that works on almost any power rack, see the well-designed Spud Inc Pulley System .

Not listed here are complex attachments and accessories that will not fit any other racks, such as those that mount on the top or bottom crossmembers or need the rack to be a specific width between uprights. Examples are special pull up bars or rack extensions.

2×2 Tubing, 1/2″ Hardware

Rogue Echo / ES-1 / Wall Mount

2×2 Tubing, 5/8″ Hardware

Titan X-2*, Powerline PPR1000

* The Titan Fitness X-2 uses 50x50mm tubing, which is 1.97″x1.97″. Their attachments are generally made large enough that they are compatible with 2×2 tubing.

Titan also uses metric spacing between holes, 50mm/1.98″ instead of 2″. The second hole on their attachments that use two holes (with a hitch pin) will not line up quite right on other racks.

2×2 Tubing, 1″ Hardware

Powerline PPR200X / PPR500, Best Fitness BFPR100, Valor BD-7 / BD-33, Amstaff DF1161A / TP006D, Rep Fitness PR-1000 / PR-1050 / PR-1100, Fringe Squat Cage, Legend Fitness Varsity Series, Get Rx’d Pro Power Cage, Vanswe Power Rack, TDS 1000lb Power Squat Rack, Fitness Reality 810XLT, Titan Fitness T-2*

* The Titan Fitness T-2 uses 50x50mm tubing, which is 1.97″x1.97″. Their attachments are generally made large enough that they are compatible with 2×2 tubing.

Titan also uses metric spacing between holes, 50mm/1.98″ instead of 2″. The second hole on their attachments that use two holes (with a hitch pin) will not line up quite right on other racks.

60x60mm (2.36″) Tubing, 1/2″ Hardware

ForceUSA MyRack

60x60mm (2.36″) Tubing, 5/8″ Hardware

Bells of Steel Residential Rack / Utility Rack / Light Commercial Rack / Brute Rack / Narrow Folding Rack / Combo Rack

For more on the strap safeties used as an alternative to traditional steel safety bars, see our article, Are Power Rack Safety Straps Safe?

60x60mm (2.36″) Tubing, 1″ Hardware

Powertec P-PR / WB-PR

Several attachments are available – I’ll create a list if I find another brand that these fit. The Powertec racks are becoming outdated.

2.5×2.5 Tubing, 1″ Hardware

Valor BD-11 / BD-41, Amstaff TR023 / TR025 / SD1050

65x65mm (2.56″) Tubing, 1″ Hardware

HulkFit power cage

Several attachments are on Amazon. No other brand makes this size.

2×3 Tubing, 1/2″ Hardware

BodyCraft F430

2×3 Tubing, 5/8″ Hardware

Rogue R-Series / Infinity, FringeSport Kip Cage / 2×3 rigs, Bolt Fitness Thunder / Lightning racks, Titan Fitness T-3* / T-6*

* The Titan Fitness T-3 and T-6 use 50x75mm tubing, which is 1.97″x2.95″. Their attachments are generally made large enough that they are compatible with 2×3 tubing.

Titan also uses metric spacing between holes, 50mm/1.98″ instead of 2″. The second hole on their attachments that use two holes (with a hitch pin) will not line up quite right on other racks.

The flip-down safeties for the Rep PR-3000 will fit reasonably well on these racks with some slop. (Thanks, Mike!)

50x80mm (1.97″x3.15″) Tubing, 5/8″ Hardware

Rep Fitness PR-3000 (discontinued)

3×3 Tubing, 5/8″ Hardware

Rogue Monster Lite, Rep Fitness PR-4000*, Titan X-3*, Body Solid GPR400/ SPR500 / SPR1000**, Vulcan Flat Base Power Rack

* The Titan Fitness and Rep Fitness racks use 75x75mm tubing, which is 2.95″x2.95″. Their attachments are generally made large enough that they are compatible with 3×3 tubing. There have been reports of Titan’s all-steel J-cups and UHMW-lined J-cups not fitting over 3×3 tubing, but their other attachments should fit.

Titan and Rep also use metric hole spacing, and it is 50mm/1.98″ instead of 2″. The second hole on their attachments that use two holes (with a hitch pin) will not line up quite right on Rogue and other racks.

** The Body Solid SPR1000 has 5/8″ hardware facing the front/back, and 7/8″ hardware on the sides. Many of its attachments are made to fit the side holes, which are incompatible with any other racks.

3×3 Tubing, 3/4″ Hardware

American Barbell racks, EliteFTS Collegiate / R3

3×3 Tubing, 1″ Hardware

Rogue Monster, Vulcan Strength Racks (most), Ethos Power Rack, Amstaff 370, Fringe 3×3 rig, Valor rig, Legend Fitness Performance Series, EliteFTS Scholastic / Garage Racks, Get Rx’d Titan rigs / Goliath rack, Fray Fitness FFB2, Sorinex XL, Bolt Fitness Storm Series, Titan’s TITAN Series*, Rep Fitness PR-5000* / CPR1* / HR-5000*

* The Titan Fitness and Rep Fitness racks use 75x75mm tubing, which is 2.95″x2.95″. Their attachments are generally made large enough that they are compatible with 3×3 tubing. There have been reports of Titan’s all-steel J-cups and UHMW-lined J-cups not fitting over 3×3 tubing, but their other attachments should fit.

Titan and Rep also use metric hole spacing, and it is 50mm/1.98″ instead of 2″. The second hole on their attachments that use two holes (with a hitch pin) will not line up quite right on Rogue and other racks.