Guide · Measuring and buying
Identify your rack before buying any attachment
Why the brand name is not enough, where to find your exact rack model and year, and what to do when the maker's own numbers disagree.
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Short answer
Find the exact maker, model and year of your rack before you buy any attachment. A brand name is not enough: lines inside one brand use different tubes, holes and spacing, and makers exclude some of their own racks from some of their own parts. Then measure the three numbers that decide fit and check them against the attachment maker's host list.
Why the brand name is not enough
Every big rack maker sells more than one system. REP lists the PR-1000 and the PR-1100 with the same 2 x 2 in 14-gauge uprights, but gives the PR-1000 2 in hole spacing and the PR-1100 3 in spacing.[1] An attachment that needs a second pin at a set pitch can work on one and not the other.
Makers also exclude racks within a single line:
- Titan says its T-2 Series Adjustable Monolift Attachments are not compatible with T-2 Series Power Racks made before October 2020.[2]
- Titan says the T-2 has no side holes, which is why its lat tower and a pivoting boxing reflex trainer do not fit it.[3]
- Rogue says band pegs and Safety Spotter Arms should not be used with the RML-390F Flat Foot Monster Lite Rack.[4]
- Titan says its T-3/X-3 rack stabilizer feet do not fit X-3 Series Flat Foot racks because the hole spacing does not match.[5]
So "a Titan rack" or "a Rogue rack" does not tell an attachment maker enough. The model name and the year do.
Find the exact model and year
Work through these in order and stop when you have a clear answer:
- Order confirmation or invoice. It usually names the model and gives the purchase date.
- Labels on the frame. Look on the uprights, base and crossmembers for a model or part number.
- The assembly manual. The cover or parts list names the model. Keep it: it also shows how the maker's own attachments lock.
- The maker's support team. Send photos of the whole rack, the base and a close-up of the holes with a ruler in frame.
Write down the maker, the full model name, any variant (folding, flat foot, bolt-down, short) and the month and year you bought it. Revisions are the reason the date matters.
When the maker's own figures conflict
Sometimes the maker publishes two numbers for the same thing. Record both and ask which one applies to your rack.
| Rack | What the maker publishes | Source |
|---|---|---|
| Titan T-2 hole size | 26 mm in the spec table, 1 in holes in the description | Titan product page[6] |
| Titan T-2 steel gauge | 12-gauge in support answers, 14-gauge on the comparison page | Titan support and comparison[3] |
| Rogue RML-690 | 3 x 3 in 11-gauge uprights and 5/8 in hardware; we do not publish its bench-zone pitch because the page's figure looks like a typo | Rogue Canada page[7] |
Some fields are simply not published. Titan support says the heights of the lowest and highest holes on the T-2 and T-2 Short racks are not currently available, although the same page gives 1593.5 mm for the top J-hook hole of one SKU, T2RACK83_BK.[3] If a number you need is missing, ask the maker or measure it yourself; do not borrow it from a different model.
Why secondhand charts go stale
Compatibility charts on forums and review sites age quickly. Two Rep Cave retracted an earlier report that Titan hole spacing had become 2 in on all racks, saying Titan racks still had 50 mm spacing at that time, and said the error came from Titan customer service information.[8] Treat any chart as a lead to check against the maker's current page, not as proof of fit.
Then measure, then match
Once you know the model, measure the upright outer size, the hole diameter and the center-to-center spacing yourself, and note the pin size the rack's own attachments use. Our guide to measuring rack uprights, holes and spacing walks through each one. Then look for your system in the rack attachment fit finder.
If your attachment maker names your rack system, that is the strongest fit evidence you can get. These J-cups and J-hooks name specific racks:
Picks that fit3 products
Titan T-3 J-Hooks only for Titan T-3 racks (2x3 in). Fringe Sport 3x3 pair (1 in holes) for the racks Fringe names, such as Rogue Monster, REP PR-5000 and Titan TITAN Series.
More on choosing
Sunny SF-XFA007 only for the Sunny Powerzone models Sunny lists. On Amazon, check that Ships from / Sold by is Amazon.com or the brand.
Choose the Titan T-3 J-Hooks for a Titan T-3 rack
Fringe Sport J-Cups 3x3 pair, 1 in holes (JCUP‑FS‑3x3‑Black)
Choose the Sunny SF-XFA007 for a listed Sunny Powerzone cage
Sunny Health & Fitness J-Hooks barbell holder, 2‑piece set (SF‑XFA007)
Next
Questions
How do I find out which rack I have?
Check the order confirmation or invoice first, then any label on the frame, then the assembly manual. Write down the maker, the full model name and the purchase month and year.
Why does a part made for my brand not fit my rack?
Lines and revisions within one brand differ. Titan says its T-2 monolift does not fit T-2 racks made before October 2020, and Rogue says band pegs and Safety Spotter Arms should not be used on the RML-390F.[2][4]
What if the maker's numbers disagree?
Record both and ask the maker which applies to your rack. Titan gives the T-2 hole as 26 mm in one place and 1 in in another, and lists the T-2 as 12-gauge in support answers and 14-gauge on its comparison page.[6][3]
My rack is discontinued. Where do I start?
Find the model name and year, then measure the upright, hole diameter and hole spacing yourself and ask the attachment maker whether those numbers are on its host list. Do not rely on old secondhand charts.