BEST CROSSFIT Gym in Boulder
Free 15-min intro first. Optional free class after.
Text only: 888-920-6482
Or Email: info@crossfitsanitas.com
Is Boulder’s CrossFit Sanitas for you?
What you’ll get at Sanitas:
- Get stronger and fitter with coaching that keeps you healthy.
- Coaching in every class that’s tailored to you
- 50+ classes weekly: CrossFit, Strength Training, HYROX + Endurance, & Oly Lifting.
- Onsite recovery & support: PT, sauna, cold plunge, nutrition counseling.
Central Boulder: 28th & Arapahoe
Text us and we’ll book your free 15-min intro.
Top-Rated CrossFit in Boulder
Real Google reviews from people who train at our Boulder CrossFit gym.
“At 52, I've never felt stronger or more motivated. The coaches, supportive community and holistic approach keep me coming back.”
— Nikki R.
“Beautiful space with Incredible coaches who take good care of both beginners and seasoned athletes!
— Dawson B.
“CrossFit Sanitas is a great gym with an incredibly supportive community. Coming here is often the best part of my day!”
— Sam K.
Classes & Amenities
More than just CrossFit. Choose CrossFit, Strength Training, Hyrox + Endurance, Women’s Strength or Lifting so you can stay consistent. Every class is coached and tailored to you. Beginners welcome.
CrossFit
Functional Strength
Women’s Strength
Hyrox + Endurance
Olympic Lifting
Open Gym
Amenities include: onsite physical therapy, cold plunge, sauna, nutrition coaching, and InBody scans.
Start here
Pick the easiest way to book your free 15-minute intro (tour + Q&A).
What happens in your free intro (15 minutes):
Quick tour
Talk goals, injuries, schedule
We recommend your best next step
Text a Coach (Fastest)
Questions answered, free 15-minute intro booked. No workout required.
Prefer Email
Send your info and we’ll email you to book your free intro.
Want to try a free class too?
Text us and we’ll schedule the right class for you.
MEET YOUR COACHES
You’ll meet one of these coaches at your free 15-minute intro.
Lori
Endurance background with marathons and trail ultras. Found CrossFit in the Netherlands.
sHAye
CrossFit Level 3 Trainer. HYROX, gymnastics, and endurance specialist. International coach and educator.
Frequently Asked Questions
CrossFit Sanitas
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CrossFit Sanitas stands out as one of the best CrossFit gyms in Boulder thanks to science-backed programming, world-class coaching, a supportive community and personalized training. With 50+ classes in CrossFit, Functional Strength, Endurance, Yoga, Women’s Strength and Olympic Lifting…there’s something for everyone. Our facility offers everything from group classes to recovery services - all under one roof.
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We’re proud to have Boulder’s top fitness professionals on our team, certified coaches, nutrition experts, and movement specialists dedicated to helping you achieve your goals safely and effectively.
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Unlike other Boulder CrossFit gyms, CrossFit Sanitas focuses on long-term health and performance. With flexible class schedules, personalized coaching, and additional services like massage therapy and nutrition coaching, we provide a comprehensive fitness experience.
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Absolutely! Whether you’re new to CrossFit or getting back into shape, our coaches tailor workouts to your level and help you build strength and confidence over time.
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Our gym in Boulder offers group CrossFit classes, personal training, youth programs, nutrition coaching, massage and physical therapy - everything you need to reach your fitness goals in one place.
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Yes! Our expert coaches create custom plans tailored to your lifestyle and goals. Nutrition coaching is a key part of our full wellness experience at CrossFit Sanitas.
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Central Boulder near 28th & Arapahoe - 2525 Arapahoe Ave, Boulder (near Sprouts & McGuckins).
Ready to Transform Your Fitness?
Join hundreds of others who've changed their lives at CrossFit Sanitas. Your fitness journey starts here.
Free 15-minute intro (tour + Q&A).
Text us: 888-920-6482
Prefer email or a call? Email us