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The 12 Costa Mesa

4.9

About this business

Specialties Group Training, Nutritional Coaching and Personal Training History Established in 2013. The 12 Group Training and Nutrition offers a 360 approach for ultimate fitness results. Our Signature Classes are designed to provide each member with an energy infused, results driven experience in 60 minutes. It begins as members enter the state-of-the-art group room which is outfit with an expansive selection of premium training equipment. Free weights, dumb bells, TRX Suspension Training, Rip Chord Training, Treadmills, HI... read more

Location details

140 E 17th St, Ste B, Costa Mesa, CA, 92627, United States

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WeekdayScheduleStatus
Mon5:00 a.m. to 9:00 p.m.
Tue5:00 a.m. to 9:00 p.m.
Wed5:00 a.m. to 9:00 p.m.
Thu5:00 a.m. to 9:00 p.m.
Fri5:00 a.m. to 9:00 p.m.
Sat7:00 a.m. to 5:00 p.m.
Sun7:00 a.m. to 5:00 p.m.
4.9531 reviews
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Joe Dudenhoeffer's profile image
Joe Dudenhoeffer 
8 years ago

By far the best place I've worked out at in years ,great knowledgeable staff ready to help and if you're a veteran and you want to go back to Boot Camp Sarge is your guy without all that stress 

Scarlett Olivia's profile image
Scarlett Olivia 
8 years ago

Don't be intimidated. I've been coming to the 12 for almost 6 weeks. I heard about the gym from a friend and tried the 2 free intro classes. I love it. 1 hour of focus and energy and my workout is done for the day. Each day focuses on different muscle groups. I schedule all my classes on their easy app. 

William Walker's profile image
William Walker 
8 years ago

I just joined The 12 and it is amazing. The staff and trainers are supportive. The classes are fun and filled with energy. The community itself promotes a friendly family like atmosphere that makes for a great experience each time. If you are looking to make some changes for yourself and you want to do it in a positive environment, this is the place. Thank you 12! 

Rebecca McClellan's profile image
Rebecca McClellan 
8 years ago

Absolutely love The 12! Started my journey to become a healthier, happier better version of my self last June, and I haven't looked back since. The sense of community this place gives its patrons is priceless. I've gained friendships and confidence every step of the way! 

David Prizer's profile image
David Prizer 
8 years ago

The workouts are great, fun and the instructors are good...but let's be seriously...I only come for the front desk women <3 I know some of them are taken and are married but just like when I'm in the gym trying to get my gains on...I'm up for the challenge :) 

Shireen Dejbakhsh's profile image
Shireen Dejbakhsh 
8 years ago

So this review is long overdue. My friend recommended I try the Afterburn classes at The12 and swore that I would become addicted. Well, a year and a half later, I can attest that to still be true. I've been an avid gym goer all my life, done all sorts of classes, have had the best of the best when it comes to personal training and I can honestly say that these classes kick my butt each and every time. They've made me stronger both mentally and physically and are usually the best part of my day. Its my best stress-reliever a... read more

Steven Pratt's profile image
Steven Pratt 
8 years ago

One of my favorite workouts! Highly recommend and can't wait to get back in there Wednesday! 

Lindsay Michele's profile image
Lindsay Michele 
8 years ago

If you haven't had to pleasure of trying The 12 yet, what are you doing? Get yourself to a class. I have been attending classes at this gem of a gym for two years, now. There are so many gyms in the area, and I have tried A LOT of them. This is the only class I look forward to attending. Every single class is different. They plan out which muscles to work on which days, I was a cardio junkie before starting at The 12. Now, I love lifting weights and seeing my strength increase. The weights paired with the high intensity inte... read more

Corey Spada's profile image
Corey Spada 
8 years ago

By far the best circuit/class based gym I've been to. Sarah, Trisha, and Cece are amazing trainers. Very motivating, and they always have great music to get you through your workout. Very clean and neat facilities. 

Frequently asked questions about The 12 Costa Mesa

How is The 12 Costa Mesa rated?

The 12 Costa Mesa has a 4.9 star rating with 531 reviews. 

When is The 12 Costa Mesa open?

The 12 Costa Mesa is closed now. It will open tomorrow at 5:00 a.m. 

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