Boulder’s Top-Rated CrossFit Gym Since 2016

Ready to Get Stronger,
Leaner, and Feel Your
Best?

50+ coach-led classes weekly and programs that actually work. Get started and feel your best!

Open Hours
5:30AM - 7:30PM

Weekly Classes
50+

Location
28th & Arapahoe

BOULDER’S BEST

What Makes Us 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

Find a time that works for your schedule with morning, midday, and evening classes.


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 and make every minute count.


World-Class programming

Created by our Head Coach, who leads PRVN’s affiliate program (used by 600+ gyms globally).


Everything under one roof

Cold plunge, sauna, massage & physical therapy + nutrition coaching, InBody Scans, and more.


Real community Support

Build lasting friendships and find accountability partners who cheer you on.

Train Smarter, Not Just Harder

EXPERT PROGRAMMING

Our head coach programs for over 600 gyms worldwide through PRVN — the same platform built by CrossFit's most decorated athlete in history.

At Sanitas, every workout is:

Progressively designed
Built for long-term results, not just temporary soreness

Boulder lifestyle focused
Tailored for strength, ski prep, trail running, and more

Expertly coached
Form correction and personal guidance in every class

Brand New or Experienced? We’ve Got Your Back

FOR EVERYONE

Whether you're just starting out or moving from another box, our coaching, onboarding, and flexible schedule make it easy to get started.

Start with Foundations

✓ 3 Personal Training Sessions
✓ Month of Unlimited Classes
✓ Nutrition Consult, InBody Scan
✓ 21-Day Coach Check-In

Learn the fundamentals with expert coaching to set you up for long-term success.

$299/1st Month

Sign up for Class

✓ Athletes with experience from another CrossFit can jump right into classes.

✓ Get started with classes or get a refresher with 1-2 personal training sessions.

$211-228/Month

EVERYTHING YOU NEED

Everything You Need — Under One Roof

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

  • Endurance + Track Workouts

  • Nutrition Coaching & InBody Body Composition Scanning

  • Recovery Lounge: Cold Plunge + Sauna

  • Sports Massage & Physical Therapy

What Our Members Say

MEMBER STORIES

Join hundreds of satisfied members who've transformed their fitness and found a supportive community at CrossFit Sanitas.

  • Top-notch coaches who push you safely beyond your limits.

    Amanda P.

  • Dropped 2 pant sizes and significantly boosted my endurance. No other gym compares.

    Suzi B.

  • I was hesitant to join a gym, but Sanitas made me feel comfortable from day one.

    Chris M.

  • They meet you where you are. Super friendly staff and a well-maintained facility.

    Eve G.

  • Fabulous gym with excellent staff and top-notch facilities. Always clean and organized.

    Emily K.

How to Get Started

GET STARTED

Join hundreds of satisfied members who've transformed their fitness and found a supportive community at CrossFit Sanitas.


Book a Free Intro (15 min)

Tour the gym, ask questions, and get a personalized plan.

BOOK A FREE INTRO →


Learn the Basics

Three 1-on-1 sessions to build your foundation.

SIGN UP FOR FOUNDATIONS →


Join the Community

Start classes and build momentum with expert coaching and support.

MEMBERSHIP OPTIONS →

Ready to Transform Your Fitness?

Join hundreds of others who've changed their lives at CrossFit Sanitas. Your fitness journey starts here.