Firethorne Super-Sport Gym

At 24 Hour Fitness, we don’t only give you more choices, we’ll help you find the workouts that work for you with a personalized 7-day plan that fits your life today, and gets you on track to your best tomorrow. Set up a free fitness appointment with our knowledgeable team, and they will customize a 24 Hour Fitness® Fit Plan for you that helps you get the most from our wide range of equipment, discover your perfect fitness classes and workouts, and get on track to the results you want.

Good vibes abound in our GX24® fitness classes, where amazing instructors create a welcoming community. Get challenged to push your limits, cut loose and have a blast.

Whether you are in the mood for calorie-torching cardio, strength, dance or restorative yoga, we have classes for every goal - all included free with your gym membership.

Get the most from your gym time with help from an experienced personal trainer. From creating custom workouts to getting you past your hump-day, our personal trainers are always ready to help you find your motivation and make progress toward your goals. Sign up in the gym for an introductory personal training 5-pack, and if you're not completely satisfied with your experience, we'll give your money back.* 

*Satisfaction Guarantee only available on purchase of our introductory 5-pack offer.

A little friendly competition can go a long way. Only available at select 24 Hour Fitness gyms like Katy, our signature group training program - Training Club 24 - is designed to help you transform your fitness through challenging team workouts that build in intensity each week. Coaches push you beyond personal limits, while your team inspires you to keep moving. Look for four results-driven formats to keep you gaining on your gym goals.

24GO® takes the guesswork out of fitness by recommending the perfect workouts for you to do - based on what you like, what you've done, and whether you're in the gym, at home or on the go*. Add workouts and studio classes directly to your calendar, get inspired with articles curated just for you, and keep yourself accountable with built-in reminders and tracking. 

We love kids, and we love giving you a break, too. This Katy gym features a clean and friendly Kids' Club, where children up to age 12 can play and have fun while Mom or Dad grabs a well-earned workout. You can be confident you'll leave the gym with big smiles all around.