2024 Update – Moved a few brands to metric sized sections where they should have been
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.
Table of Contents
The key specs are:
The tubing size of the uprights, as above, typically one of: 2″x2″, 2″x3″, or 3″x3″.
Racks made in China usually use metric sizing. This applies to a lot of brands featured here. They don’t advertise the fact, and you would have to ask them or run into the problem yourself. The tables they are organized in identify them as such.
The hardware/peg diameter that fits into the holes in the uprights, as above. Varies from 1/2″ to 1″. Going by the peg diameter is more consistent across brands than the hole size that is cut somewhat larger than the peg.
The hole spacing in the uprights, ie: the distance between holes on center, as above. This is only applicable for attachments that use 2 holes, the second using a locking pin.
2″ spacing is becoming the standard. 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.
An attachment can fit in a larger hole than it’s made for, but it will be able to wiggle and maybe tip down a little, depending on the snugness of the bracket that goes over the tubing.
Similarly, attachment brackets can fit onto slightly smaller tubing than what they were designed for. This can be less bad than the wrong peg size, because you can glue shims (UHMW plastic or wood) 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 be a safety issue, like a battle rope anchor, but it could still rattle.
Lastly, the steel gauge (wall thickness) of rack tubing does not factor into compatibility. The tubes are fabricated to an outside diameter spec.
For fitting 3×3 attachments onto 2×3 tubing, or 2×3 attachments onto 2×2 tubing, an Etsy seller is making these adapters to fill the void in the bracket.
I don’t recommend you use load-bearing 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 be snug enough. Use some common sense, visualize it, and you’ll get the idea.
In many cases attachments that use a locking pin to secure the attachment into a second hole on the rack’s upright won’t line up the same on all racks. Normally this is the difference in metric and imperial (inches) hole spacing. As much as you want it to work, under most circumstances you won’t get the locking pin in. The offset starts at 1/16″ per hole and widens cumulatively.
If you’re thinking of foregoing the locking pin or buying a thinner one, and you have to ask for confirmation on whether it’s safe, you probably shouldn’t do it.
Rogue has among the best and most consistent quality. Cheap Amazon-only brands, which I don’t like to list unless there are no other options, are the worst and might be unsafe. Most other brands are somewhere in the middle or sometimes as good as Rogue.
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.
Size categories ordered smallest to largest.
Titan X-2 (discontinued)
The Titan T-3 Multi Grip Pull Up Bar is compatible with this rack (thanks TJ!).
Granite Fitness Series 22 racks
No other brands match this size.
Powerline PPR1000, Northern Lights Crossbox
Titan Fitness T-2, Giant Lifting 2X Series
50mm is a hair smaller than 2″. These are generally compatible with 2×2 racks. However, 2×2 attachments using a second hole and hitch pin are incompatible.
| Titan Adjustable Monolift | $229.99 | |
| Titan Safety Straps Pair fits 26″ inside depth | $159.99 | |
| Titan Dip Bars Pair | $84.99 | |
| Titan Y-Dip Bar | $94.99 | |
| Titan J-Hooks Pair | $74.99 | |
| Titan Roller J-Hooks Pair | $94.99 | |
| Titan Sandwich J-Hooks Pair | $94.99 | |
| Titan 23″ Spotter Arms Pair | $104.99 | |
| Giant J Cups Pair (use code TWOREP for 10% off at Giant Lifting) | $49.99 | |
| Giant Landmine | $79.99 | |
| Giant Dip Station | $119.99 |
Powerline PPR200X / PPR500, Best Fitness BFPR100, Valor BD-7 / BD-33, 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, Amstaff DF1161A / TP006D (discontinued)
| Rep Dip Attachment | $79.99 | |
| Rep J-Cups Pair | $69.99 | |
| Rep Landmine (fits any rack that will take 5/8″ or larger pegs) | $89.99 | |
| Rep 9″ Plate Storage Pair | $29.99 |
For more on the strap safeties used as an alternative to traditional steel safety bars, see our article, Are Power Rack Safety Straps Safe?
ForceUSA MyRack only.
60mm is 2.36″, way off from all imperial sized racks. These attachments might fit the metric racks in the next section well enough that take 16mm pegs.
| ForceUSA Plate Holders (4) | $49.99 | |
| ForceUSA Deluxe J-Hooks Pair | $79.99 | |
| ForceUSA J-Hooks Pair | $59.99 | |
| ForceUSA Dip Attachment | $79.99 | |
| ForceUSA Landmine Base & Handle | $79.99 | |
| ForceUSA Spotter Arms Pair | $99.99 | |
| ForceUSA Strap Safeties Pair fits 29″ inside depth | $99.99 | |
| ForceUSA Monolift | $199.99 |
Bells of Steel Residential Rack / Utility Rack / Light Commercial Rack / Brute Rack / Folding Rack / Combo Rack
60mm is 2.36″, way off from all imperial sized racks.
| BoS J-Cups Pair | $59.99 | |
| BoS Sandwich J-Cups Pair | $59.99 | |
| BoS Plate Storage Pegs Pair | $44.99 | |
| BoS Roller J-Cups Pair | $69.99 | |
| BoS Landmine Base | $69.99 | |
| BoS Y Dip Bar | $99.99 | |
| BoS 27″ Spotter Arms | 119.99 | |
| BoS Lever Arms | $199.99 | |
| BoS Monolift | $229.99 | |
| BoS Belt Squat | $308.00 |
Powertec WB-PR / P-PR (discontinued), Hulkfit Power Cage
60mm is 2.36″, way off from all imperial sized racks.
Valor BD-11 / BD-41, Amstaff TR023 / TR025 / SD1050
| Valor 12″ Safety Arms MB-H | $65.00 | |
| Valor Premium Bar Holders MB-G | $45.00 | |
| Valor Dip Handles MB-B | $59.00 | |
| Fitness Avenue J-Cups Pair | $27 |
Titan Fitness T-3 / T-6 (discontinued)
Slightly smaller than 2″x3″, and pegs slightly larger than 5/8″. Generally compatible with 2×3 racks except for attachments using a second hole, because of the metric hole spacing.
| Titan J-Hooks Pair | $74.99 | |
| Titan Sandwich J-Hooks Pair | $94.99 | |
| Titan Roller J-Hooks Pair | $104.99 | |
| Titan Safety Straps Pair fits 24″ or 36″ inside depth | $134.99 | |
| Titan 21″ Spotter Arms Pair requires 50mm hole spacing | $114.99 | |
| Titan Adjustable Lever Arms | $329.99 | |
| Titan Dip Attachment | | $74.99 |
| Titan Y-Dip Bar | $104.99 | |
| Titan Plate Storage 4-Pack | $94.99 | |
| Titan Battle Rope Anchor | $59.99 | |
| Titan Step Up Platform | $104.99 |
Rogue R-Series (Infinity), FringeSport Unlimited Kip Power Cage / 2×3 rigs (discontinued), Bolt Fitness Lightning Power Racks
| Rogue J Cups Pair | $70 | |
| Rogue 20″ Spotter Arms | $145 | |
| Rogue Matador | $95 | |
| Rogue Landmine | $95 | |
| Rogue Plate Storage | $31 | |
| Rogue Battle Rope Anchor | $30 | |
| Rogue Wrenches (15/16″ wrenches fit the head of a 5/8″ bolt) | $35 | |
| Fringe 24″ Safety Spotters Pair | $116 | |
| Fringe J Cups Pair | $98 | |
| Fringe Dip Bar | $129 |
Sunny Health & Fitness Power Zone Power Cage
No other brands match this size. The attachments in the 2×3, 5/8″ peg section above should fit this rack well enough.
Fitness Reality X-Class Light Commercial Rack
No other brands match this size.
Rep Fitness PR-3000 (discontinued)
Griffin Fitness GR3 Lite, Rep Fitness PR-4000, Titan X-3, Vulcan Flat Base Power Rack
Slightly smaller than 3″x3″, and pegs slightly larger than 5/8″. Generally compatible with 3×3 racks except for attachments using a second hole, because of the metric hole spacing.
Rogue Monster Lite, Stray Dog Strength, Bells of Steel Hydra, Body Solid GPR400 / SPR500 / SPR1000*, Granite Fitness
* The Body Solid SPR1000 takes 5/8″ pegs facing the front/back, and 3/4″ pegs on the sides. Many of its attachments are made to fit the side holes, which are incompatible with any other racks.
Mark Buffalo wrote a guide on how to fit the Titan X-3 lat pulldown on a Rogue Monster Lite rack.
American Barbell power racks, EliteFTS Collegiate / R3
See the 3×3, 5/8″ section above for more attachments that will fit these racks well enough.
Titan’s TITAN Series, Rep Fitness PR-5000, Vulcan Strength Racks (except Flat Base Power Rack), Griffin Fitness GR3, Giant Lifting 3X Series, Fringe Sport Osprey Power Cage, Fray Fitness Savage Series, Get Rx’d Goliath rack
Slightly smaller than 3″x3″, and pegs slightly smaller than 1″. Generally compatible with 3×3 racks. The attachments here with a locking pin using a second hole, such as spotter arms, can even sometimes fully fit on 3×3 racks because the smaller peg size somewhat makes the attachment drop a little lower and reach the slightly wider spaced hole to lock into.
There have been reports of Titan’s all-steel J-cups and UHMW-lined J-cups not fitting over 3×3 tubing.
Rogue Monster, Ethos Power Rack 1.0, Amstaff 370, Fringe 3×3 rig, Valor rig, Legend Fitness Performance Series, EliteFTS Scholastic Half Racks / Garage Power Racks, Sorinex XL Series, Bells of Steel Manticore, Bolt Fitness Storm Series, PRx Pro, Prime Prodigy, eliteFTS Quick Ship Power Rack, Inspire Fitness FPC1, Stray Dog Strength, Oak Club Manufacturing, Irwin Fitness
For a high and low cable system that works on almost any power rack, see the Spud Inc Pulley System shown above.
If you only need a high pulley (for lat pulldowns and tricep pushdowns), see Giant Lifting’s pulley system for a much lower price.
This Rep Fitness dip attachment above fits on almost any rack with 1″ round safety bars (thanks Anthony!). The rack needs to have at least 21″ depth between the front and back uprights, which is the case for all freestanding racks and most floor-mounted racks except the most shallow ones. The rack’s hole spacing does not matter, as the bottom part of the attachment simply rests against wherever the lower safety bar is.
There are a couple solutions for power rack strap safeties if you can’t find a match. If you can get a brand of them with brackets that fit your rack but the straps are the wrong length, get two 2″ Stren-Flex slings of the right length to replace them with. They are extremely strong, with pertinent info labeled and a chart on that webpage with the pound ratings.
Your second option is a pair of Spud Inc suspension straps that hang off your rack’s top crossmembers.
Multiple questions on this in the comments prompted me to add this section.
You generally can’t add a rear rack extension – usually to accommodate weight plate storage – made for a different brand. The height of the holes off the floor and the rack width would have to be precisely the same.
Similarly, with extension feet meant to stabilize a rack, even if the tubing size and peg size are a match, the holes would have to be precisely the same height off the floor, or they would float and defeat the purpose.
I have heard reports of people using these across brands, but in every case it seems the user made some modifications to make it work. If you found a case where they are perfectly compatible, please leave a comment!
For the best compatibility going forward, I highly recommend getting a 3×3 rack taking 5/8″ pegs (Rogue Monster Lite compatible) or 1″ pegs (Rogue Monster compatible). Even you never buy a Rogue product, they lead the way in things like this.
Rogue appears to be in the beginning stages of abandoning their 2×3 racks in favor of 3×3. Other manufacturers have noticed and likely will follow suit. This doesn’t mean that nobody will make racks with 2×2 or 2×3 tubing. I believe that there will be a market for those lighter and cheaper racks for a long time, and they are not necessarily bad racks. The 3×3 attachments sell much better and are more numerous, because people who spend the extra money for a 3×3 rack are more likely to soup it up.
You might want to steer clear of racks that have metric sized tubing. That said, many people know what they’re getting into and choose to buy those.
View Comments
Hi David, Thanks so much for keeping this post updated. I'm in the market for a new rack, as I'm tired of not being able to find attachments for my Powertec rack, which is also too short. I'd love to buy a Rogue RM-6, but I have a hard time justifying the cost. That said, I'm looking at the Titan Fitness "Titan" rack. It looks to be a clone of the RM-4. I would purchase it today if Titan made an extension to convert it to a 6 post rack, but I digress... Do you happen to know if the measurements (hole spacing, hole size, & upright width) is an exact match w/ Rogue?
See the 75x75mm section above. They are a little smaller than 3x3. Hole size should be 1". Not sure about hole spacing but the tubing size should throw it off enough.
Yeah, sorry I missed the Titan section. I skipped down to the 3x3 and completely missed this piece. I appreciate you not calling me out, lol. Thanks again for the info sir. Very helpful. On a diff note- I've been looking at the GetRxd Titan 6 post 3x3 rack which is 8' tall. I've searched all over, but can't seem to find any reviews (aside from their own website) that discuss this rack. Does anyone have any experience with this rack or company?
I have a Legend 3142 half rack. I ordered a Titan X-3 dip attachment. Learned the hard way that 3"x3" Legend racks have 1" hole while X-3 has 11/16 holes. Would be great if you could add Legend Fitness to the list.
Thanks for an awesome list!
Now I see what happened. Legend wouldn't help me when I asked them for the missing info last year. I tried again today and hopefully somebody will get back to me. Not very smart to ignore an opportunity for free exposure on a popular article like this.
Thanks for following up. I can only attest for the fact that the Legend 3142 has 3"x3" 11 gauge steel with 1" pins. I'm unsure about their other equipment.
I've added the Legend Varsity Series and Performance Series to the page. If the 3142 (Performance Series) uses 1" pins then the Varsity does also. The Pro Series uses odd shaped holes, and they aren't getting back to me to clarify it.
Legend has so many racks that I think I got overwhelmed when I looked into adding them a while back, or maybe I couldn't get all the sizing info. I'll have to look at them again!
I am building a power rack out of 3X3 11 gauge and I have been trying to find out if the racks and accessories for 1" holes are a true 1" hole or is the hole slightly larger? Do you know for sure? Thanks!
I believe all the manufacturers do it by the hole size, not the size of the peg on the attachment, which is a little smaller. So a 1" hole should be exactly 1".
Ok good to know! Thank you!
Hello David
I was just wanted to double check before I ordered the Rogue Monster Lite Storage Channel Pair and Rogue Monster Lite Matador fits 100% on the rep pr-4000. Just wanted to make sure before i pay the hefty shipping haha. Thanks!
Yep, the fit between the Rogue Monster Lite and Rep PR-4000 should be identical. They have the same hole spacing too, for any 2-hole attachments.
Just ordered the 3x3x1 weight pegs from Vulcan. You actually get a pair for $50 which is a really good deal. Some of the pegs from other brands are $50 to $75 EACH.
Good to know! I've updated the listing to indicate it's a pair. That sounds like a lot for just one.
Hey David,
Do you know of any accessories that are compatible with Rouges ECHO? I'm currently looking to get some spotter arms. Thank you!!
Nope, it's all alone in that size!
Any chance you’ll be adding The bells of steel racks to this incredible list
?
Done! I added a section for 60x60mm (2.36") Tubing, 5/8" Holes. Bells of Steel are the only racks that are around that size for now.
Hey David, this page was exactly what I was looking for... almost. I've got an old 2x3 set of j hooks with a pin diameter definitely less than 5/8. Cannot for the life of me find them or any company that makes them. They look like a standard rogue j hook. Definitely 2x3 and definitely less than 5/8. I'm having trouble even finding a rig that used holes less than 5/8. Any ideas?
That's going to be a tough one. I have no idea who might be making those J hooks or rack to fit. It sounds like they're a pretty recent model if they look like Rogue's current ones.
The X-3 is actually slightly smaller than 3x3 whereas the Rogue 3x3 racks are dead-on. This means that many of the Titan X-3 attachments won't fit the Rogue 3x3 racks.
That's not good! I thought sure some people had said that the Titan attachments fit Rogue. I'm going to have to look into this again. I checked my Titan X-3 and it's 2 15/16", or likely 75mm. The J-cups and safety arms are snug, not a millimeter to spare. Anyone got a Rogue 3x3 they can measure??
I do. I also have the X-3 wrist roller and it won’t fit my Rogue 3x3 ML. It’s very close, but the difference is just enough that it won’t work. Titan tends to have poor tolerances, so some other attachments may work on the Rogue 3x3.
Ok, thanks! Sounds like I need to check with Titan and try to get the exact dimensions on their 2x3 and 2x2 racks too.
I've got an X-2 extension and can measure, though I don't have a caliper gauge at present. Maybe I'll gift myself one for Xmas. :P
I got confirmation from Titan today that both their 2" and 3" tubing dimensions are all made to mm sizes, so it's 50x50, 50x75, 75x75. I'll update the charts soon to fix all that.
Just an FYI to add another compatibility to your site. I was able to successfully use Rogue stringers (2 fo $65) instead of Titan Stringers ($65 each!) to mount my Titan T-3 tall folding rack. I used the Infinity holes which were slightly off but worked fine. Looks great!
Odd that Rogue stringers are half the price of Titan.
Thanks for the note! Yep, strange on the pricing. I added a note about getting the Rogue stringers for the Titan folding rack in this article about them with credit to you. I'm going to have to update it more soon, with the Tall model Titan has now, and whatever else is new...
https://www.tworepcave.com/2292/fold-back-wall-mounted-squat-racks-comparison/