Book a Free intro

Book a 15-minute session with no commitment and no pressure. One of our coaches will give you a tour of our gym and answer any questions. Get a free InBody body fat scan ($40 value) during your visit to get a baseline of your fitness.

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* DROP-INS: Already CrossFit and want to buy a drop-in? Reserve in advance here. *

WHY choose CROSSFIT SANITAS?

RESULTS: Achieve unparalleled full-body strength and conditioning
COACHING: Experienced, supportive coaches to help you succeed
SCHEDULE: Convenience with 50 weekly classes from 5:30a to 7:45p
LOCATION: Central Boulder location at Canyon and Arapahoe
FACILITIES: 10,000 sq ft facility with full locker rooms, cold plunge and sauna
AMMENITIES: Nutrition counseling, physical therapy, massage and InBody scans

What to Expect in Class

A Great, 1-Hour Workout

Classes are one hour and usually consist of a warm-up, skill session, high intensity workout, and a cool-down with stretching.
Different Every Day

Every day is different and focuses on different muscle groups and different skills. This keeps your body guessing, gets you incredible results and you never get bored!
Individualized Coaching

Each class is led by a friendly, knowledgeable and supportive coach that will give you individual attention to guide you through the workout in a fun group setting.

We are Boulder’s best gym

but don’t take our word for it…

Voted “Best CrossFit in Boulder” every year since 2016

Awarded
“4th Best CrossFit in the US”

Awarded
“5th Best CrossFit in the US”

“CrossFit Sanitas is nothing short of amazing; big, well-equipped gym, excellent, professional coaches, incredible workout programming and a great Boulder community of support. Being over 60, I consider CrossFit workouts essential to keep me in great health, both physically and mentally. Even more than just health, CrossFit Sanitas keeps me in peak fitness so I can do the sports and activities that I love. The leadership at the gym has created a safe space and approach to get great exercise. Anyone would be hard pressed to find a more outstanding gym anywhere.”
— Louis S.
“I have been a competitive Nordic skier and triathlete before I started at CrossFit Sanitas. I also travel frequently for work and hit gyms in cities across the country. I have never come close to encountering the quality of coaching that happens every day at Sanitas. The coaches are not only technical experts, knowledgeable about health, nutrition, fitness, and injury prevention but they also figure out how to design the workouts to challenge the most elite athlete and the beginner at the same time. Additionally, the staff does a terrific job of fostering community and I look forward to ‘getting to work out’ each day. Truly… a top-notch operation.”
— Emily P.
“CrossFit Sanitas is incredible! Speaking as a CrossFit/gym amateur, what I love best about CrossFit Sanitas are the coaches, and the lack of pressure from members (which is huge). The coaches are always giving me advice on my technique, and members are always encouraging me no matter if I’m lifting 10lbs or 100lbs. I was very hesitant joining a gym because I had no idea what I was doing and didn’t want to look silly. On my very first visit, CrossFit Sanitas made me feel comfortable.”
— Chris M.
“There’s no other place like CrossFit Sanitas. Joining Sanitas has been one of the best decisions I’ve ever made…it’s life changing. I don’t know if I’ve ever felt stronger. I’ve gone down 2 pant sizes and my endurance levels have increased substantially. No other gym has what Sanitas offers. This is a true community. You are greeted at the door every time you walk in and you feel like you’re part of something. We all encourage each other to be better. This place is special.”
— Suzi B.
“Amazing CrossFit gym. The community around Sanitas is strong and friendly. I had no issue connecting with other members and coaches, making the gym experience more enjoyable. I love the programming, which I thought brought attention to a wide variety of different skills. The coaches are the best around, and are always looking to improve the gym experience for everyone.”
— Erik B.
“I’ve been active my whole life, but have never felt challenged like I have at CrossFit Sanitas. I’ve been doing this for three years now and the changes to my body and strength are incredible. This is the best coaching staff I have ever been around, bar none. In every class one of the coaches will stop me and correct my form or give me helpful advice…every single class. These coaches know me by name and know what my strengths and weaknesses are…they also know everyone else’s name. At a regular gym, I would go 2-3x a week and never leave feeling challenged. I go 5x a week here and never feel bored…ever.”
— Josh R.
“This gym and community have been the absolute highlight of our time in Colorado so far. Of the 12+ gyms we’ve tried across the country, nothing comes close to Sanitas. EVERY ONE of the coaches is amazing – they take their role seriously, they demonstrate every move, they explain the goal of each exercise, they provide tons of personalized guidance, they focus of great form and safety first, they know everyone’s names, and they always find ways to make the workouts fun.”
— Sam R.
“I can’t say enough good things about Sanitas. The coaches are top-notch and encourage members to push themselves past limits in a safe and supportive environment. Going to this gym regularly has helped me get in the best shape I’ve been in in years and made me better able to enjoy all the hiking/skiing/biking and other outdoor activities that are why most of us love Colorado.”
— Amanda P.
I've called a few gyms my "home gym" over the years and the coaching, programming, and community is unparalleled at CrossFit Sanitas.
— John P.
“I found Sanitas 7 years ago bored with running/cycling, having never lifted a barbell, and now I can’t stay away. I’m in here 4-5 days/week (as is my wife), about to turn 46, and I’m hands down in the best shape of my life. This is a phenomenal gym, with truly knowledgeable and passionate coaches and staff, that has become an integral part of my life. They literally have classes all day long, so class sizes are ideal, and they have a huge variety of speciality classes, clinics, massage, and clean locker rooms. Equally importantly, they have cultivated a diverse, fun and welcoming community of members, many of whom are now friends.”
— Eric M.

WANT TO GET IN THE BEST SHAPE OF YOUR LIFE?

If you’re intimidated by CrossFit, don’t be. We’ve worked with athletes ages 5 to 86, people with physical disabilities, lifelong couch potatoes, moms, Olympians, and everything in between. Regardless of where you’re starting, we‘ll meet you right where you are. We’ll even hold you accountable when necessary because reaching your goals is much more fun (and more likely) with the incredible support of our community.

Frequently Asked Questions

+ What makes CrossFit Sanitas different than other local CrossFit gyms?

CrossFit Sanitas was launched with the specific mission of making CrossFit accessible to busy Boulder professionals and moms. Some of our key differentiators are:

World-class, friendly coaching staff
Lots of class times to choose from
A beautiful, 10,000 ft² facility with top-of-the-line equipment
Locker rooms, sports therapies, sauna, cold plunge pool, yoga, great snacks and gear
No advance reservations required
A great new-member experience (we're invested in your success!)
A central location in Boulder in an easy-to-access retail center

+ What if I’m too out of shape/old for CrossFit?

At CrossFit Sanitas, our hallmark is inclusiveness, and we make no judgments, except to applaud you for your courage in walking in the door. We love to welcome people who have been discouraged by other fitness programs. Our coaches have trained seventy year-olds, helped people crack the 300 pound barrier for the first time, you name it. Regardless of where you're starting, we will meet you right where you are and accompany you along your journey to fitness. Just show up. We’ll take it from there!

+ Will lifting weights make me big and muscular? I don't want to get too bulky.

We hear this not only from women who “don’t want to look like men,” but many endurance athletes, as well. The truth is, lifting weights will make you strong, not bulky. Your body composition will change; you’ll burn more fat to build more muscle; and you’ll feel more powerful in your own body. To gain significant weight, you’ll need to not only lift very heavy multiple days a week, but you’ll need to eat well into the 3,000+ calorie range every day. It’s a very conscious effort to “get bulky,” so don’t fret!

+ Isn’t CrossFit dangerous?

Life without CrossFit is dangerous! Our mission is to make our members less susceptible to injury, illness and disease throughout their lives. Within months of joining us, you should see fat loss, muscle gain and other measurable improvements in your health.

Over time, you'll see improvements in key biomarkers such as triglycerides, fasting blood glucose and blood pressure. CrossFit has helped athletes reduce and eliminate* dependence on insulin, statins, and other prescription meds. We do this by training your body to move, eat and recover the way it was meant to.

*Do not reduce or stop taking medication without first consulting your doctor

+ Can I benefit from CrossFit if I plan to stay focused on my primary sport?

CrossFit has proven extremely effective at enhancing sport-specific performance, which has led to its adoption in the fitness world across a wide range of disciplines. In fact, our CrossFit classes are specifically programmed to reduce overuse injuries and improve performance for competitive athletes.

+ How does CrossFit compare to personal training at my current gym?

CrossFit was developed specifically to be more effective, more fun and less expensive than personal training (5 sessions/week costs 30% less than just one session/week of personal training). You'll be amazed by how much more quickly CrossFit delivers results, as a result of its constantly-varied, high-intensity group classes with expert coaching and a supportive community.

+ When do you recommend personal training?

Even though our classes are an excellent way to get in shape and cut down on the need for personal training, many of our athletes find that they want more one-on-one attention to improve certain skills, like handstands, Olympic lifting, etc. We highly recommend personal training for improving skills or working on a specific focus, with the support of our world-class coaches.

+ What should I expect from my first class?

Please plan to come 10 min early to meet the coach and get signed in. You can wear whatever you'd normally wear to the gym, and bring a water bottle if you wish (we have a fountain). We have cubbies and lockers with programmable locks for your things, as well as showers.

Class flow:

Please introduce yourself to your coach, who will begin class with an explanation of the Workout of the Day (WOD)
Coach will walk you through a specific warm-up and cover any skills necessary for the workout
Workout with the rest of the class, with any modifications you may need for your skill and comfort level. If you have questions about anything, don't hesitate to ask your coach for tips or recommendations. They are there to help!
Cool down with the class, with guided mobility and stretching
Tell us how it went!