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:

  1. The tubing size of the uprights, typically one of: 2″x2″,  2″x3″, or 3″x3″. All 2″x3″ racks have the 3″ sides oriented the same direction.
  2. The hole diameter in the uprights. Attachments need to have the same size pegs, ie: 1″, 5/8″, etc.
  3. 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, like 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.

When slightly wrong sized attachments are ok

Attachments can also fit in larger holes. For example, Rogue’s Infinity attachments with 0.63″ pegs can fit into the Titan X-3’s 0.69″ holes. When an attachment is made for a larger hole, it will be able to tip forward a little because the rear hole does not secure it.

Similarly, attachments can fit onto slightly smaller tubing than what they were designed for. For example, Titan attachments for 2.5″ tubing can fit onto Powertec’s 2.4″ tubing. This can actually be a better situation than the wrong hole size, because you can glue shims (UHMW plastic is best) to the inside of the attachment’s bracket to make it fit perfectly.

Some attachments work well enough even if they’re loose. Some don’t have enough pressure put on them to make any difference, like a rope anchor.

The steel gauge of racks does not matter. The difference in dimensions is too minuscule to count.

When you should not use the wrong sized attachments

I don’t recommend you use certain safety-critical attachments like J-hooks or steel safety arms designed for a slightly larger sized hole or tube. Depending on the fit, they may tip forward or wiggle too much.

Weight plate storage attachments can present a similar problem, where the storage peg won’t stay perfectly horizontal if it’s too loose a fit.

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 Titan Fitness’ quality.

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. These include any attachments that mount on the top or bottom crossmembers or need the rack to be a very specific width. Examples are special pull up bars and almost any vertical barbell holders.

2×2 Tubing, 1/2″ Holes

Rogue Echo & ES-1 & Wall Mount
Rogue Echo J Cups
$45.00

2×2 Tubing, 5/8″ Holes

So far, only the Body Solid PPR1000 power rack is
compatible with this size. I will add the attachments here if another brand shows up.
   

2×2 Tubing, 11/16″ (0.68″) Holes

Titan X-2
Titan Universal Landmine
(fits many sizes of racks)
$45.95
Titan Dip Bars Pair
$38.95
Titan Y-Dip Attachment
$64.95
Titan Padded J Hooks Pair
$39.95
Titan Sandwich J-Hooks Pair
$59.95
Titan Plate Holders Pair
$19.95
Titan Plate Storage (4)
$94.95
Titan Step Up Platform
$64.95
Also, the Titan T-3 Multi Grip Pull Up Bar 
is compatible with the Titan X-2 racks (thanks TJ!).

2×2 Tubing, 1″ Holes

Powerline PPR200X, Best Fitness BFPR100,
Valor BD-7 & BD-33, Titan T-2, Amstaff
DF1161A & TP006D, Rep Fitness PR-1000,
PR-1050 & PR-1100, Fringe Squat Cage,
Get Rx’d Pro Power Cage
Rep Dip Attachment
$50.00
Rep J-Cups Pair
$39.00
Rep Landmine
$49.00
Rep Plate Storage Pair
$14.99
Valor Dip Handles MB-A 
 $59.00
Valor 12″ Safety Arms MB-F 
 $65.00
Valor Premium Bar Holders MB-E
$45.00
Valor 7.5″ Plate Storage Post
$34.00
Titan Monolift
requires 2″ hole spacing
$145.99
Titan Safety Straps Pair
fits 26″ inside depth
$129.99
Titan Plate Holders Pair
$24.99
Titan Universal Landmine
(fits many sizes of racks)
$45.95
Titan Dip Bars Pair
$54.00
Titan Y-Dip Bar
$69.95
Titan J-Hooks Pair
$29.95
Titan 20″ Spotter Arms Pair
requires 2″ hole spacing
$75.95
Titan Battle Rope Anchor
$39.95

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

2.4×2.4 (60mm) Tubing, 1″ Holes

(Powertec P-PR, WB-PR)
Several attachments are available – I’ll create
this list if I find another brand that these fit.

2.5×2.5 Tubing, 1″ Holes

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

 

These will also fit the Powertec racks, with 1/8″ slop.

Valor 12″ Safety Arms MB-H
$65.00
Valor Premium Bar Holders MB-G
$45.00
Valor Dip Handles MB-B
$59.00

Tip: If you have a lighter squat rack that you aren’t bolting to the floor, you may consider getting some sand bags to weigh it down if the feet are splayed out enough like in this example

2×3 Tubing, 1/2″ Holes

BodyCraft F430
BodyCraft J-Hooks
$70.00

2×3 Tubing, 5/8″ (0.63″) Holes

Rogue R-Series & Infinity,
FringeSport Kip Cage & 2×3 rigs

(these attachments will fit the larger
0.68″ holes on the Titan T-3 & T-6,
with a little slop)
Rogue Monolift
requires Infnity retrofit kit
$352.40
Rogue Infinity Safety Straps 2.0 Pair
fits 24″, 30″ or 43″ inside depth
$180-
$190
Rogue J Cups Pair
$65.00
Rogue Matador
fits 2″ hole spacing
$83.49
Rogue Landmine
$95.00
Rogue Plate Storage
$28.25
Rogue Battle Rope Anchor
$25.00
Fringe 24″ Safety Spotters Pair
$99.00
Fringe J Cups Pair
$85.00
Fringe SuperCup J Cups Pair
$145.00
Fringe Dip Bar
fits 2″ hole spacing
$79.00

1.97×3.15 (80mm x 50mm) Tubing, 5/8″ Holes

Rep Fitness PR-3000
Rep Sandwich J Cups Pair
$79.00
Rep Landmine
$49.00
Rep 17.5″ Safety Spotters Pair
$109.00

2×3 Tubing, 11/16″ (0.68″) Holes

Titan T-3 & T-6
Titan J-Hooks Pair
$39.99
Titan Sandwich J-Hooks Pair
$64.99
Titan Safety Straps Pair
fits 24″ or 36″ inside depth
$96.76
Titan Dip Bars Pair 
$54.95
Titan Y-Dip Bar
$79.95
Titan Universal Landmine
(fits many sizes of racks)
$45.95
Titan Plate Storage Pair
$24.99
Titan Step Up Platform
$69.99
   

3×3 Tubing, 5/8″ (0.63″) Holes

Rogue Monster Lite, Get Rx’d Titan Rack,
Rep Fitness PR-4000, Body Solid
SPR1000 [1]
Rogue Monolift
$305.00
Rogue Monster Lite Safety Straps Pair
fits 24″, 30″ or 43″ inside depth
$180-
$190
Rogue Monster Lite J-Cups Pair
$79.50
Rogue Monster Lite Sandwich J-Cups Pair
$125.00
Rogue 24″ Monster Lite Safety Spotters Pair
$162.75
Rogue Monster Lite Matador 
 $86.75
Rogue Monster Lite Storage Channel Pair
$58.50
Rogue Monster Lite Landmine
$95.00
Rogue Monster Lite Kids’ Pull Up Bar
$58.50
Rogue Monster Lite Leg Roller
$75.00
Rogue Battle Rope Anchor
$25.00
Rogue MobilityWOD Roller
$50.00
Rogue Change Plate Storage
$45.00
Body Solid J Cups Pair
$90.00
[1] The Body Solid SPR1000 has 5/8″ holes facing the front/back, and
7/8″ holes on the sides. Many of its attachments are made to fit the 7/8″
holes, which are incompatible with any other racks.

3×3 Tubing, 11/16″ (0.68″) Holes

Titan X-3
Titan J Hooks Pair
$49.95
Titan Universal Landmine
(fits many sizes of racks)
$45.95
 Titan Dip Bars
$64.95
Titan Safety Straps Pair
fits 24″, 30″ or 36″ inside depth
$123.16
Titan Plate Storage Pair
$39.95
Titan Plate Storage (4)
$94.95
Titan Battle Rope Anchor$39.95

3×3 Tubing, 3/4″ (0.75″) Holes

American Barbell racks
American Barbell Dip Bar
$250.00

3×3 Tubing, 1″ Holes

Rogue Monster, Vulcan Strength
Racks, Ethos Power Rack, Amstaff 370,
Rep Fitness PR-5000 & CPR1 & HR-5000,
Titan’s TITAN Series, Fringe 3×3 rig,
Valor rig, Get Rx’d Titan rigs &
Goliath rack, Body Solid SPR1000[1]
Rogue Monolift
$325.00
Rogue Monster Safety Straps
fits 24″, 30″ or 43″ inside depth
$180-
$190
Rogue Monster J-Cups Pair
$115.00
Rogue Monster Sandwich J Cups Pair
 $225.00
Rogue 24″ Monster Safety Spotters 2.0 Pair
$270.00
Rogue Monster Matador 
 $145.00
Rogue 12.5″ Monster Plate Storage Pin
$52.50
Rogue 13″ Monster Plate Storage Channel
$95.00
Rogue Monster Landmine 2.0
$125.00
Rogue Monater Leg Roller
$64.50
Rep Strap Safeties Pair
fits 30″ inside depth
$149.00
Rep Spotter Arms Pair$159.00
Rep Dip Attachment
$109.00
Rep Flat Sandwich J Cups Pair
$99.00
Rep Rounded Sandwich J Cups Pair$119.00
Rep Landmine Attachment
$49.00
Vulcan J Hooks Pair
$55.00
Vulcan 12″ Plate Holder
$50.00
Vulcan Dip Attachment
$124.00
Vulcan 24″ Spotter Arms Pair
$130.00
Vulcan Landmine
$75.99
Titan Monolift
(requires 2″ hole spacing)
$319.95
Titan Spotter Arms
(requires 2″ hole spacing)
$229.95
Titan Universal Landmine
(fits many rack sizes)
$45.95
Titan Y Dip Attachment
$105.95
Titan Sandwich J Hooks Pair
$109.95
Titan Safety Straps Pair
fits 42″ inside depth
$124.95
Fringe Spotter Arms Pair
$155.00
Fringe J Cups Pair
$105.00
Fringe Plate Storage
$75.00
Valor J Cups Pair
$69.99