Bodybuilding
The Castle is home to award-winning bodybuilding competitors, and the equipment selection reflects it — machines and free weights deep enough that you never wait on the piece you need.
Explore Bodybuilding- Veteran-Owned Business
- USPA Certified Facility
- 50,000 Sq Ft
Big lifts.
Not big talk.
The premiere gym for bodybuilding, strongman, boxing, MMA and powerlifting in Texas. A family-owned old school gym — no binding contract and no hidden sign-up fees.
Se habla Español
Gym Info
Three floors of work
Whatever you came to train, the equipment and the coaching are already here.
Powerlifting & Strongman
This is the best-equipped strongman and powerlifting facility in DFW. For the platform lifts you'll find specialty bars, lifting platforms, competition racks and kilo plates — the same equipment you'll meet on meet day.
Explore Powerlifting & StrongmanBoxing & MMA
The combat wing runs inside the gym: an on-site boxing ring and MMA cage, plus a full MMA school for members who want structured instruction rather than open-floor bag work.
Explore Boxing & MMA- 50,000 sq ft
- The largest MetroFlex location
- USPA certified
- Facility and coaches
- Veteran-owned
- Staffed by former military, police and fire
- No contract
- No binding term, no hidden sign-up fee
Service Discount
You served. You save.
This gym is veteran-owned and staffed in part by former military, police and fire. Discounted memberships are available to:
- Military veterans
- Active-duty military
- Police officers
- Firefighters
Discount applied with proof of ID.
Come train
5501 Thelin Street #125Fort Worth, TX 76115
South Fort Worth, at the I-20/I-35 interchange
- Monday – Friday
- 6:00 AM – 10:00 PM
- Saturday
- 10:00 AM – 6:00 PM
- Sunday
- 10:00 AM – 4:00 PM
Se habla Español
Getting here
South Fort Worth, where I-20 and I-35 intersect.
Walk in during open hours — no appointment needed to look around.
Cancelling a membership
Memberships are billed and cancelled through ABC Fitness, not at the front desk. To cancel, contact ABC Fitness directly.