Rig - Build Your Own (ThreeKit)
SORT BY
FAQ
How do I choose between PR-4000 and PR-5000 for a build-your-own rig?
Both use 3x3" 11‑gauge uprights, but PR‑4000 has 5/8" holes (for 5/8" pins) with Westside-style spacing, while PR‑5000 uses 1" holes (for 1" pins) with 2" spacing and a more premium attachment ecosystem. Components aren’t cross-compatible, so pick one REP series for your build and future add‑ons.
What parts do I need to start a custom rig?
A basic REP Fitness rig uses uprights with crossmembers/connectors (double‑bar, tri‑bar, or pull‑up connectors) plus at least one pull‑up bar; then add J‑cups and optional safeties/storage to create your stations. For wall‑mount setups, use wall‑mount connectors and confirm ceiling clearance and walk‑around space.
Which pull-up bar diameter or finish should I choose?
1.25" suits most users and versatile training, while 2" increases grip demand; raw steel offers a more tactile feel than coated options. For side‑by‑side pros and cons, see our Pull-Up Bar Comparison Guide.
What’s the difference between standard and sandwich J-cups?
Standard J‑cups are a durable, value option; sandwich and round sandwich J‑cups 2.0 add more bar protection and a cradled feel to reduce knurl wear and noise. Get fit and selection tips in our guide to how to pick J-cups.
Can I expand or reconfigure my rig later?
Yes—REP rigs are modular, so you can add bays, uprights, pull‑up bars, and connectors over time as space or training needs change; just match 4000 vs 5000 series for compatibility.