Stamina X Fortress Power Tower
Stamina's Fortress is the Sportsroyals' fancier cousin — same pull-up + dip + knee-raise core, plus an integrated plyo box that adjusts 16-24 inches. The plyo addition is genuinely useful: step-ups, jump training, elevated push-ups all share the same footprint. 250 lb rated, which is the main downside vs. the Sportsroyals' 450 lb. If you weigh under 220 lb and want plyo functionality, this beats buying a separate plyo box. If you need to weighted-dip a 50 lb belt, get the Sportsroyals.

Gym Score breakdown
Composite of build quality, durability, value, performance, and owner satisfaction. Calibrated per category.
- Lifters who want bodyweight strength plus low-box plyometrics in one footprint, and who do not need to lift more than around 225 lb of bodyweight plus added load.
- You weigh near 250 lb already, you want a station that doubles as a squat rack, or you have no interest in jump training (the plyo platform is the differentiator, so skip if you only want pull-ups).
Roughly 55 in wide by 50 in deep, with about 84 in of vertical clearance for tall users at lockout on pull-ups.
moderate — Around 90 to 120 minutes solo with the supplied multitool. Hardware is bagged by step but the manual leans on small grayscale diagrams, so a second pair of hands speeds up the upper crossmember and the plyo deck install.
Pull-up towers come after the barbell platform, after the rack or bench, and after the primary cardio piece. They are accessory-tier strength: useful, but not the spine of any program.
Strengths
- + Integrated adjustable plyo box (16-24 in)
- + Smart Workout app pairing
- + Solid pull-up + dip station built in
- + Compact footprint for what it does
Weaknesses
- − Only 250 lb capacity (vs. 450 on competitors)
- − Plyo platform is the main differentiator — skip if you don't jump
- − Heavier and harder to disassemble than Sportsroyals
What owners actually complain about
Synthesized from owner reviews and community threads. Paraphrased, not quoted.
- Plyo deck wobbles under hard step-ups for heavier users despite being inside the rated capacity
- 250 lb total capacity is a hard ceiling once you add a weight vest or dip belt
- Hardware bag occasionally ships short by one or two bolts, requiring a Stamina warranty claim
- Powder coat chips easily on the plyo edges where shoes scuff the platform
- Smart Workout app library is thin compared to the marketing copy
Who this is for
The Stamina X Fortress is a pull-up, dip, and plyo combo aimed at the home lifter who wants bodyweight strength and a low jump box without buying two separate pieces. It fits a one-room setup where floor space is more valuable than a higher capacity rating. People who already own a squat rack and just want a dedicated bodyweight station should look at simpler towers. People who want to combine bodyweight work with step-ups, lateral hops, and box jumps inside the same footprint are the target buyer.
Build quality
The frame is heavy-gauge steel with a textured powder coat. The pull-up bar is welded, not bolted, which removes a common wobble point at the top crossmember. The dip stations use foam-wrapped tubing that holds up well to chalk and palm sweat over a year of regular use. The weak point is the plyo deck itself: the rubberized top layer is fine for shoes but scuffs visibly under any cleat or rough edge, and the powder coat on the deck rim chips before the rest of the unit shows wear. Bolts are zinc-plated and the threads cut cleanly on first assembly, which matters because the tower is large enough that taking it back apart is a real undertaking.
The 250 lb total capacity is the structural ceiling and it is also the most common owner complaint. For a 180 lb user with a 25 lb weighted vest the math is comfortable. For a 230 lb user adding load it gets tight fast. The competing Sportsroyals tower lists 450 lb because it has a wider base and skips the plyo platform; the Fortress trades that headroom for the plyo feature.
Real-world use
The combination of stations means the tower earns its floor space in a way single-purpose pull-up bars do not. A typical 25 minute session can chain pull-ups, dips, knee raises, and 16 in step-ups without leaving the unit. The plyo deck adjusts in 2 in increments from 16 in to 24 in, which covers the working range most home users will program. Switching heights takes about 30 seconds with the captive pin system.
The Smart Workout app pairs over Bluetooth and offers guided sessions, but the library is shallow compared to a real coaching platform and the rep counter relies on the user pressing a button at each set. Treat the app as a free extra rather than a reason to buy.
Noise is modest. Step-ups on the plyo deck send a thump through the floor of a wood-frame home, so a rubber mat underneath is the right move for upstairs rooms. Dips and pull-ups are quiet by comparison.
The case against
The most honest objection is that the plyo deck is the only reason to pick this tower over a cheaper alternative. If jump training is not on your program then a Sportsroyals or a wall-mounted bar gives you a higher capacity for less money and less footprint. The 250 lb ceiling is also a real limit: as soon as you start adding weighted dips or a heavy vest the unit is working at the top of its band and the wobble becomes noticeable. Disassembly is harder than a straight pull-up tower because the plyo frame is integrated, so renters who move every couple of years should factor in the breakdown time.
Bottom line
The Stamina X Fortress is the right buy for one specific user: the home lifter who wants pull-ups, dips, and a real adjustable plyo box in one unit and who weighs under 220 lb. For that buyer it is a clean two-for-one. For anyone else, a higher-capacity dedicated tower or a separate plyo box gives more usable range for the money.
Full specs
- Weight Capacity
- 250 lb
- Plyo Heights
- 16/18/20/22/24 in
- Stations
- Pull-up, dip, knee raise, push-up, plyo
- App
- Smart Workout (free)
- Frame
- Heavy-gauge steel