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!
Open Hours
5:30AM - 7:30PM
Weekly Classes
50+
Location
28th & Arapahoe
BOULDER’S BEST GYM
What Makes CrossFit Sanitas Boulder’s BEST CrossFit 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
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.
VARIETY OF CLASSES
All the tools, coaching, and support you need to reach your fitness goals and get in great shape. Classes and services include:
CrossFit + Olympic Lifting + Functional Strength Classes
Endurance Classes + Track Workouts
Yoga
Nutrition Coaching & InBody Body Composition Scanning
Cold Plunge + Sauna
Physical Therapy & Sports Massage
CrossFit Sanitas OfFers Much more than Just CrossFit
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.
Ready to Transform Your Fitness?
Join hundreds of others who've changed their lives at CrossFit Sanitas. Your fitness journey starts here.