About Fire Fitness

Fire Fitness is more than a gym — it’s a community built on grit, discipline, and support. Our 24/7 facility in Grand Rapids offers free weights, cardio machines, strength equipment, and a variety of group classes, including Pilates and HIIT, led by certified trainers. Whether you’re a beginner, a seasoned athlete, or somewhere in between, we’re here to help you reach your goals.

Group & Team Training Now Available

Got a youth sports team, a workplace crew, or just a group of motivated friends? We offer custom training packages tailored to your group's needs. From in-season performance training to general fitness, we’ll build a plan that works for your schedule and goals — all at an affordable group rate. You don’t need to be a formal team to train like one. Reach out today and let’s put something together for you. Contact us for more information!

Frequently Asked Questions

How do I get a tour?

Walk-ins are welcome during staffed hours, but we recommend scheduling a tour to avoid any wait time. To set up an appointment, stop by Fire Fitness or give us a call at 218-999-7534.

What type of gym is Fire Fitness?

Fire Fitness is a locally owned, 24/7-access gym offering everything from free weights and cardio to specialty group classes. We cater to all fitness levels with options for strength training, conditioning, mobility, and more. With no enrollment or annual fees, it’s simple to start or continue your fitness journey here.

Do you offer training for minors or youth athletes?

Yes! Ages 14 to 17 may become members with a legal guardian present at signup. After a consultation with the gym manager, they may gain key fob access.
Youth under 14 can train with one of our certified personal trainers — great for athletes prepping for a season or for young beginners building strength, confidence, and technique.
All minors must follow our gym rules and must exit the facility by 10 PM.

How much space does the facility have?

We operate out of three connected suites (Units 40, 50, and 60) in the Grand Square shopping center, totaling 4,674 square feet with plenty of parking.

Why the name “Fire Fitness”? Is it just for firefighters?

Not at all! While our founder, Sam Karkela, serves as a volunteer firefighter with Grand Rapids Fire Department, Fire Fitness is open to everyone — no matter your background, age, or experience level.

We’re proud of our roots and the ownership team that helped bring Fire Fitness to life — including local first responders, veterans, and passionate community members. Fire Fitness LLC is led by majority owner Sam Karkela, and co-owned by Sean Spiker, Kevin Kubeczko, Thomas Caldwell, Kolby Condos, Malcolm Wallaker, Jazz Watkins, and Josh Lewins.

“I extend my heartfelt thanks to everyone who has contributed to this journey of building our business. Without the support of family, friends, and the community, this would not have been possible. From the bottom of my heart, thank you! I am committed to offering a superb facility that will make the entire community proud.”
— Sam Karkela