CrossFit® Millburn
The center is an official CrossFit® affiliate. Last checked: 10/09/2025
CrossFit is a registered trademark owned by CrossFit, LLC, which is not affiliated with FitFit United States.

Information about CrossFit® Millburn
Opening hours
- Monday: 5:00 AM – 8:00 PM
- Tuesday: 5:00 AM – 8:00 PM
- Wednesday: 5:00 AM – 8:00 PM
- Thursday: 5:00 AM – 8:00 PM
- Friday: 5:00 AM – 8:00 PM
- Saturday: 7:30 – 10:30 AM
- Sunday: 9:00 – 11:00 AM
Services, Machines and Guided Classes
CrossFit® Millburn: Opinions

Fantastic experience: I have been a member of CFM for 6 months at the writing of this review. Simply stated, this place is awesome. In 6 months I've set and hit major goals: muscle up by year end, check, deadlift 300 pounds (315 actually), check, increase front and back squat by 20%, check. Don't know what any of that stuff is? Then no worries, because CFM has the most supportive, welcoming and knowledgeable staff (coaches) I have come across. They are motivating without yelling at you, instructive without talking down too you and ALWAYS keep your safety as the first priority. If you are afraid of injury or just intimidated by Crossfit but want to try it, this is the place to do it. From the experienced Crossfitter to the newbies, everyone is super friendly and genuinely having fun. Yes, it's fun. As a side note, I am a Chiropractor with a multi-discipline sports practice with physical therapy and rehabilitation therapists. We treat athletic injuries daily and I can really appreciate the attention to detail Dan and his coaches have for injury prevention.
Fantastic experience: CrossFit Maelstrom is not like other gyms. In around an hour you will get an unbelievable workout combing all the elements of CrossFit and strength training. The coaching staff is first rate and is super focused on safety and proper movements by their athletes. If you are looking to get into the best shape of your life and are in the Millburn/Short Hills/Livingston area, check out CrossFit Maelstrom.
Fantastic experience: Top-notch coaching. Since I have started doing CrossFit at CrossFit Maelstrom, I have continually hit new PR's in weight lifting (some by almost 100#), due to coaching on technique and a dedicated strength program. Further, I have added gymnastics skills that I didn't know I had in me (butterfly pull ups, handstand walks, muscle ups).
Fantastic experience: Have dropped in here several times…great programming and coaching. Highly recommend this spot!
Fantastic experience: My wife is a professional CrossFit athlete, and every time we are in her home town we drop in on a workout here. The gym staff and athletes are so kind and welcoming, the atmosphere is inviting and energetic, and the workouts leave me wanting more! 10/10 highly recommended.
Fantastic experience: I love coming in for a workout when I’m in town visiting family. It’s always very organized, clean, and has great equipment. The staff is super knowledgeable and friendly. And the athletes are always very welcoming and supportive. It’s a great environment for all levels and fitness goals!
Fantastic experience: Excellent class I had a great time!! quality equipment and amazing coaches.
Fantastic experience: CrossFit Millburn is an amazing gym. I highly recommend anyone who’s into CrossFit or anyone who just wants to get in shape to join. The community and coaches are great. The programming is my favorite part and it has helped me advance to reach my fitness goals. 5 stars isn’t enough to describe this gym.
Fantastic experience: Positive: Communication , Professionalism , Quality
Fantastic experience: Positive: Communication Very helpful for someone who never attended a CrossFit class, but also very competitive! Friendly environment and a lot of fun.
Fantastic experience: Positive: Communication , Professionalism , Quality Great trainers: educated, professional and motivating! Space: Sanitized after every workout and you have your own personal space for working out! I love working out at CF Millburn!
Fantastic experience: Best CrossFit gym in the area. Lots of space. Up to date equipment. Everything is sanitized after every class. Everyone is super friendly. Highly highly recommended
Fantastic experience: Positive: Quality
Fantastic experience: I dropped in at CrossFit Millburn to run Olympic weightlifting programming, and I was so impressed with the size and cleanliness of the gym, as well as the amount/quality of equipment! I have never seen so many Rogue monster racks in one place . The members were really friendly and the coaches I met, Jermaine and Diogo, were helpful and knowledgeable. It was a super nice space and atmosphere and I’m looking forward to visiting again.
Fantastic experience: I had a great experience at CrossFit Millburn. My brother has been going here for years and I joined him for a workout. Our coach, Danielle, was outstanding! She helped me get through the whole workout and provided awesome tips along the way! I’ll be sure to make this a staple visit whenever I’m back in the area. Highly recommend for all levels of crossfit lovers!
Fantastic experience: Very welcoming environment. Came in as a newbie a little over a year ago and never left. Workouts are great- challenging but always scalable. Class scheduling can accomodate early birds and those that prefer evenings, and I just love the coaches!
Fantastic experience: Positive: Communication , Professionalism , Quality Great programming, quality equipment and amazing coaches.
Fantastic experience: Positive: Communication , Professionalism , Quality Fab coaches, warm community and killer workouts.
Fantastic experience: Dropped in 2x. The Box is clean, large, respects social distancing, and has great coaches.
Fantastic experience: Great programming and great coaches. The workouts are challenging but scalable. The members are welcoming and supportive. They make sure that everyone in the class is safe and the equipment is clean. Best gym in the area
Fantastic experience: I've been a member here for 2 years and I really enjoy it. Ive increased my strength and endurance while adding great skills like muscle ups and olympic lifting. The community is great, the members and coaches here are some of my best friends. It is a very welcoming place where everyone will root for you to succeed.
Fantastic experience: Fantastic community and fun! The bonus was that there was so much space for everyone and so much equipment for people to accommodate over 20 of us for Memorial Day Murph. And the owner set the appropriate tone of making sure we didn’t hurt ourselves but encouraging us when we needed it.
Fantastic experience: Been meaning to check this box out and dropped in today to redo 19.2! Thank you to all the members for being the best cheerleaders and welcoming my husband and I with open arms! Coaches were super accommodating and we had the most hospitable experience! We will definitely come back!
Fantastic experience: Fantastic gym- very welcoming! I dropped in from out of town for one class, and Diogo and the athletes in class made me feel like I was at home. Had a great time here. Sometimes people are intimidated about some things we do in CrossFit- or even walking through the doors for the first time. This gym has a very welcoming atmosphere- the kind of gym where these people would feel no intimidation, and get instantly fired up!
Fantastic experience: Great time today dropping in for 12 days of Xmas! The members were super friendly and Kareem was a great coach! Thanks!
Fantastic experience: Recently went over the weekend to this Gym and was Amazed. They have all the equipment you need / want to get a great WOD in. Thanks Coach Diogo I’ll be back soon !!
Fantastic experience: Super nicely done all around! The staff, the facility, the workout, and everything in between. I dropped in from out of town and felt very welcome by the coaches and the community. I highly recommend Crossfit Millburn looking for a great experience.
Fantastic experience: Dropped in twice this week and had great experiences. Workouts were challenging and fun and the coach and members were very welcoming. Great facility too. Would definitely recommend!
Fantastic experience: The workouts are killer and the trainers are incredibly helpful with improving your form and/or working around injury. Great place and go as often as I can!
Fantastic experience: My fiance and I dropped in and got a great workout with Diogo and his crew this morning! Clean, top notch equipment, plenty of space, and thorough programming (warmup, strength, metcon, accessories). We'll be coming back next time we swing thru Jersey. Thanks for having us!
Fantastic experience: Highly recommended. Great coaches, new equipment and challenging workouts. Coaches Kareem and Diogo are amazing!! CF Millburn is our new home away from home!
Fantastic experience: Couldn't have had a more lovely experience at CrossFit Millburn! Diogo, our coach, was a wonderful motivator, he delivered seamless transitions, and we left feeling motivated and exhausted (in a good way!). We were just dropping in, but were treated like members of the community - wish we could live here so we could attend! Thank you, Diogo!
Fantastic experience: Dropped in when coming in to town. 10/10 highly recommend to anyone interested in CF!
Fantastic experience: We recently had my son’s 9th birthday party here and everyone had a great time! There were a lot of activities set up for them and it was very well planned and executed! Couldn’t have asked for a better experience!
Fantastic experience: We had my son’s 8th birthday party with his entire class. Thank you coaches for making this a memorable experience for the second graders. They loved all the workout stations, but most of all they had a blast during the dodge ball game. They needed the pizza and cake to recharge after the fun work out.
Fantastic experience: Love love love. My first time trying out crossfit and the trainers have been amazing, the teach you the right away and make sure it's stays right, great workouts, great music, great people!
Fantastic experience: I gave CrossFit another chance after having a terrible first experience at a different gym. Needless to say, CrossFit Millburn completely sold me. From the coaches, to the space, to the workouts, nothing was short of impressive. The staff was very attentive, the newley renovated facility was clean and spacious, and the workouts pushed me harder than anything I’ve experienced. 5 stars!!!
Fantastic experience: The amount of time directed towards each student is unprecedented. I always had a personal problem trying to perfect form in workouts to avoid injuries, within a week at the gym I was not only executing proper form, but also breaking personal lifting records. I've been to plenty of gyms, but the coaching here is the best i've ever encountered. From the moment I walked in the coaches and gym members made me feel like family, overall just a great place!!
Fantastic experience: One of the better CrossFit gyms I've been to. The area is spacious enough where you aren't on top of each other and there are various rooms to do the different workouts. The instructors are extremely friendly and helpful. They pay attention to everyone during the workout and make sure everyone is safe in their movements.
Fantastic experience: This is a great place to get into crossfire. They have a great team of trainers and are also very supportive and motivating. The people in the group classes are also very inspiring and keep motivating me.
Fantastic experience: This was my first time ever doing crossfit and I had an awesome first experience. The coach was great, informative, and super nice! The atmosphere was non judgemental and encouraging all while getting a great workout! I would definitely go back and would highly recommend this gym.
Fantastic experience: Everyone is super friendly, the programming is always unique, and the gym is beautiful and clean. Highly recommended
Fantastic experience: Dropped in to Crossfit Millburn twice now and have had a great experience both times. Solid programming, great coaching and awesome community! We'll definitely keep coming back when in the area!
Fantastic experience: Awesome place to get fit and have fun all at the same time. Trainers are very well prepared for the class and are attentive to each person individually. I only attended 1 class as a guest but I am looking forward becoming a member. I drive an hour to get there and it is worth every minute of it.
Fantastic experience: While visiting the area from Philly, I was looking for a gym to drop into while in town. I reached out in advance to get more information, and was responded to quickly with welcoming and helpful information. This morning I dropped in for their barbell class, and had such a blast! Kareem greeted me upon arrival, gave me a tour and welcomed me to make myself at home. Members soon arrived, everyone was super nice and introduced themselves, and made me feel as if I had been going there all along. The class started with a great movement specific warm-up, then into the start of our work session. Kareem’s coaching was great - clear and descriptive with demonstration and help along the way when needed. Dave was also there to coach the Olympic lifts and help with technicalities, very vey friendly and helpful! This is a great spot, I’ll definitely be back again the next time I’m in the area. Thanks!!!
Fantastic experience: Great facility, excellent coaches and premier programming.
Fantastic experience: Amazing place to go to whether you’re a first timer in CrossFit or have been working out for years and really want to challenge yourself. The coaches and people at CFM are wonderful and make working out a fun, collaborative, and educational experience. Every day is a different workout, so you’ll never get bored and will always be pushed to your absolute limit. This was my first experience with CrossFit and I’m hooked!
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CrossFit® Millburn appears in the following listings:
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