Research-based buying guide · Specifications checked October 9, 2026.
What actually changes the decision?
| Decision | PR-4000 | PR-5000 |
|---|---|---|
| Uprights / rated rackable capacity | 3×3 in, 11-gauge / 1,000 lb | 3×3 in, 11-gauge / 1,000 lb |
| Hardware and hole grid | 5/8 in; 1 in in bench zone, 2 in elsewhere | 1 in; 2 in grid |
| Height choices | 80 or 93 in uprights | 80 or 93 in uprights |
| Current crossmember choices | 16, 24, 30 or 41 in | 16, 30 or 41 in |
| Nominal outside width | 50.8 in | 50.8 in |
| Numbering | Every fifth hole | Every hole |
| Best reason to spend more | Needed depth, adjustment or supported attachments | A specific 1-inch attachment ecosystem |
Compatibility: same tube size is only the first check
| Check | What to record before buying |
|---|---|
| Rack series and version | PR-4000 or PR-5000, current or older component |
| Attachment interface | Pin diameter, hole centers, bracket fit and required adjacent holes |
| Cable system | Supported rack series, height, depth and post layout in the current builder |
| Anchoring and stability | Your exact manual: crossmembers, rear stabilizer, front feet and attachment use |
| Outside-rack work | Spotter arms, lever arms and pull-up attachments may change anchoring and space needs |
PR-5000 offset J-cups can provide intermediate bar positions without changing its 2-inch hole grid. Do not buy reducers or assume cross-brand fit from “3×3” alone. REP’s assembly requirements vary by configuration: a rear stabilizer does not make every 30-inch or outside-rack setup safe without anchoring. Follow the current installation manual for the complete configuration.
Compare complete configurations, not starting prices
Price the same height and working depth, the same safety type, J-cups, pull-up solution, storage and cable functions. A rack-only price and a rack-plus-Ares quote answer different questions. Include tax, shipping, anchoring and flooring in the budget; omit accessories you will not use.
Two-quote cost worksheet
Enter current complete quotes. Optional additions can be $0. No prices are prefilled as live offers.
PR-4000 configuration
PR-5000 configuration
Choose by training goal
Squat and flat-bench focus: prioritize bar placement, safeties and a stable installation; PR-4000 is a sensible first quote. Bodybuilding with adjustable cables: compare the rack plus the supported Athena or Ares 2.0 configuration, cable travel and bench access. Mixed functional fitness: reserve open floor and overhead movement room rather than filling the garage with every attachment.
Already own a sound rack? Replacement is hard to justify unless its adjustment, safety system or compatibility blocks training you actually do. Use the hole-size guide and the rack-depth guide for the broader decision, then compare rack and cable priorities.
Primary sources: PR-4000 builder; PR-5000 builder.
Research and purchase checks
We compared current US manufacturer specifications and product builders, not hands-on testing. Dimensions are manufacturer figures and may include stated manufacturing tolerances. Check the current drawing, manual, configured price, delivery charges and return terms before ordering. Prices and configurations can change.