BEST CROSSFIT in Boulder
50+ coach-led classes weekly in CrossFit, Functional Strength, Endurance, Yoga and more - with programs that actually work. Get stronger, leaner and feel your best at CrossFit Sanitas!
Open Hours
5:30AM - 7:30PM
Weekly Classes
50+
Location
28th & Arapahoe
What Makes CrossFit Sanitas Boulder’s BEST CrossFit Gym?
BOULDER’S BEST GYM
Rated 4.9 from 200+ Reviews on Google
Voted Boulder’s Best CrossFit Gym ( Daily Camera, every year Since 2016)
Featured in SHAPE and SELF magazines as one of America’s top CrossFit gyms
CrossFit Sanitas OfFers Much more than Just CrossFit
VARIETY OF CLASSES
At CrossFit Sanitas, we’ve created more than just a gym — it’s a full-service wellness facility led by Boulder's top fitness professionals. Whether you're training for performance, longevity, or simply looking to move better, our expert team is here to guide you.
CrossFit Sanitas offers
✅ Included
Elite Coaching Team
✅ Yes
Top-Tier Equipment (Rowers, Ski Ergs, Turf)
✅ Yes
Infrared Sauna & Cold Plunge
✅ Yes
Massage, Acupuncture & Physical Therapy
✅ Yes
Nutrition Lounge & Healthy Snack Bar
✅ Yes
Full Locker Rooms & Showers
✅ Yes
Ample Off-Street Parking
✅ Yes
InBody Composition Tracking
✅ Yes
Supportive, Goal-Focused Community
✅ Yes
Whether you’re new to CrossFit or looking to level up your training, you'll be supported by Boulder's best CrossFit coaches in an environment designed for results.
50+ coached classes weekly
Classes in CrossFit, Functional Strength, Endurance, Yoga and more with a very flexible schedule.
Expert coaches who care
Personalized coaching and attention in every class, every time.
Convenient Boulder location
Train where you live, work, and run errands—skip the commute—make every minute count.
World-Class programming
Created by our Head Coach, who leads PRVN’s affiliate program (used by 600+ gyms ).
Everything under one roof
Cold plunge, sauna, massage, physical therapy, nutrition coaching + InBody Scans.
Real community Support
Build lasting friendships and find accountability partners who cheer you on.
What Our Members Say
MEMBER STORIES
Join hundreds of satisfied members who've transformed their fitness and found a supportive community at CrossFit Sanitas.
“Dropped 2 pant sizes and significantly boosted my endurance. No other gym compares.”
— Suzi B.
“Top-notch coaches who push you safely beyond your limits.”
— Amanda P.
“I was hesitant to join a gym, but Sanitas made me feel comfortable from day one.”
— Chris M.
Frequently Asked Questions
CrossFit Sanitas
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CrossFit Sanitas stands out as one of the best CrossFit gyms in Boulder thanks to world-class coaching, a supportive community, personalized training, and science-backed programming. 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 will scale 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, and recovery services - 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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We are located in Boulder, Colorado. But if you want to know the exact location, here it is: 2525 Arapahoe Ave, Boulder, CO
Ready to Transform Your Fitness?
Join hundreds of others who've changed their lives at CrossFit Sanitas. Your fitness journey starts here.