PRx Build Limitless 6 Post Expansion Kit

PRx Build Limitless 6 Post Expansion Kit

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With PRx’s new Build Limitless Series, buyers are able to continually enhance their at home gym in stages. The PRx newest add-on is the Build Limitless 6 Post Expansion Kit which transforms the Build Limitless Full Cage Power Rack into a 6 Post Power Rack. 

These traditionally provide more stability and accessory options as well as storage. So, if you are upping your workout game and need both more stability and storage potential for weight plates, the Build Limitless 6 Post Expansion Kit is a great buy. 

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In-Depth Review

Pros & Cons

What we like ...
  • Available in 2 upright heights (81-inch or 95-inch)
  • Compatible with all Build Limitless Series
  • Constructed with 11-gauge steel
  • 1-inch spaced laser cut holes inside bench press area
  • Premier black powder coating
  • Add on accessories allow for expanded workout options (dip bar, band pegs, rack mount bar hanger)
  • Purchase includes:
  • (2) 95" or 81" uprights (choose one)
  • (4) 18" crossmembers
  • (1) 42" crossmember
  • All assembly hardware (except for floor anchors)
What needs improvement ...
  • Must buy anchors separately (recommended for stability)
  • Shipping not included (adds over $100 to cost)
  • Website does not provide a thorough description of this kit (footprint measurements not noted)
  • The cost of 3 expansion kits plus base model squat stand does not necessarily save you money
  • Not compatible with other brands

Product Summary

According to PRx, the Build Limitless Series is designed to be the “last squat rack you’ll ever own.” This line of racks gives users the ability to start small with the Squat Stand and later grow into a larger home gym using the Expansion Kits. In this line, the 6 Post Power Rack Expansion Kit makes for the ultimate home gym experience. With this expansion pack, you can build from your Build Limitless Full Cage Power Rack to the premium 6 Post Power Rack.

Made in the USA, the Limitless 6 Post Power Rack Expansion Kit is constructed with 3-inch-by-3-inch 11-gauge steel and coated in a protective black powder finish. The uprights in this Expansion Kit are available in two heights (81-inch and 95-inch) to match the height of your Full Cage Power Rack. Both uprights and crossmembers have ⅝-inch laser-cut holes which allows for multiple accessory options. What’s more, the spacing in the bench area is 1 inch, providing a more specific J-cup placement when hitting your heavy bench press.

The concept of continually upgrading one piece of equipment so your gym grows according to your needs is really awesome. That said, the cost may outweigh the benefit depending on your immediate and long term fitness goals. If you are looking to start on a smaller scale, whether it be because of space or health goals, the Build Limitless Series is a great way to go. The ability to transform your Full Cage to a 6 Post Power Rack truly gives users greater choice when creating a home gym space.



Black powder coat finish


3×3" 11-gauge steel


5/8" diameter laser-cut holes
95" or 81" uprights
42” crossmembers

Hole spacing

1" hole spacing inside the bench & clean-pull area
2” hole spacing outside the bench area
Laser-cut notch every 5 holes

Made in the USA



Limited lifetime warranty

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PRx Build Limitless 6 Post Expansion Kit

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      PRx’s Build Limitless line of equipment revolutionizes the way in which you can grow your gym. At the top of the line and providing the ultimate workout experience is the Build Limitless 6-Post Power Rack Expansion Kit offering durability and versatility.