Information about B42 Functional fitness

First floor, Global Link, Dunleavy Dr
CF11 0SN, Cardiff
+447487530778

Opening hours

  • sunday: (closed)
  • monday: 6h-19h
  • tuesday: 6h-19h
  • wednesday: 6h-19h
  • thursday: 6h-19h
  • friday: 6h-19h
  • saturday: 9h-11h
Functional fitness gym offering a brand new experience to group exercise, running signature programs all week, catering to anyone who wants to be healthier, stronger and train the right way!

Our comment from FitFit UK about B42 Functional fitness:

B42 Functional Fitness, located in Cardiff, United Kingdom, is an outstanding fitness center that caters to individuals of all abilities. Visitors rave about the incredible coaching team led by the highly knowledgeable and friendly Ben, who is known for creating a welcoming community. Many users have shared how personal training sessions with Ben have transformed their approach to fitness, making exercise enjoyable and engaging.

Clients appreciate the diverse and structured classes that keep the workouts fresh and exciting, ensuring that no two sessions are the same. The emphasis on community is evident, with numerous reviewers highlighting the supportive atmosphere where everyone is encouraged to push themselves while having fun.

Some additional highlights of B42 include:

  • Highly skilled trainers dedicated to your progress
  • Engaging sessions that are fun yet challenging
  • Tailored programs for individual fitness goals
  • A fantastic sense of community
  • Easy parking facilities

While the overall feedback is overwhelmingly positive, a few users mentioned that the intensity of some sessions can be challenging. However, this is generally seen as a motivating factor rather than a downside. Overall, B42 Functional Fitness is highly recommended for anyone looking to improve their fitness in a fun and welcoming environment.

Services, Machines and Guided Classes

Fit
Functional
Running

B42 Functional fitness: Opinions

5/5 (53 Opinions)
Katie Shanahan 2 months ago

Fantastic experience: Joining was the best decision I’ve made !!! Best gym ever with the BEST coaches !! Had 0 fitness when I joined and now training consistently a year later and loving it

Charlotte 2 months ago

Fantastic experience: I used to hate going to the gym but since joining B42 in November 2024, I have been at least 3/4 times each week. The coaches are amazing and keep you feeling really motivated. I’ve met so many amazing people and I’m the fittest I’ve ever been. The classes are always very varied so you never get bored. I couldn’t recommend B42 enough

Anthony Green 2 months ago

Fantastic experience: Been a member for close to six months now. Fantastic gym, really supportive coaches, highly recommend.

Rebecca Donovan 5 months ago

Fantastic experience: I joined B42 in February 2024, at the time my self confidence was very low and my motivation for the gym declined. It’s now been over a year and I can’t believe how much B42 has changed my life. I’m in the best shape of my life, but not only that made some of my closest friends! I find not many gyms I have been too in the past have a sense of community like B42, and I can honestly say (even though the work outs are touch) that I enjoy every session!! I absolutely love coming to the gym and it’s really changed the world of fitness. There are also all abilities so there is no worry you won’t be able to do an exercise, everyone is welcome! ☺️

Lowri Jenkins 5 months ago

Fantastic experience: Best coaches, people and vibes! Can’t recommend B42 enough!

Quennie James 5 months ago

Fantastic experience: What can I say? The best gym in Cardiff? And nope I dont get paid to post good reviews . I love being part of the community feel of the gym. This place is my “happy place” especially as a very busy Mum with toddler twins and a 7 year old, busy household to run. After a year and a half joining, I’m starting to feel myself again, getting stronger and fitter again. This Mama is definitely trying to get her “pink” back. The coaches are very welcoming, friendly and motivating. They know their shit. I dont feel like I’m just a number. There’s no cliquey vibe with everyone. You felt seen and included. I’m able to do things which I’ve put off for years- running. I’m a barbell girl through and though but now- I’m doing my first hyrox soon, half Marathon and who knows what’s next?! Thank you B42 for helping me find myself again and make me believe I can do ANYTHING no matter how old I am and where I am in my fitness journey!

Grace Busby 5 months ago

Fantastic experience: B42 isn’t a gym, it’s a community and I’m super proud to be part of it! I joined in January after trying some of the classes and look forward to going to every session. It’s tough, but it pushes me to the next level and I’m stronger and fitter than ever! The coaches are all amazing, so knowledgeable, friendly and supportive. They really care!

Hayley Paterson 5 months ago

Fantastic experience: Always toyed with idea of joining a gym but never felt confident enough. Tried a few classes for free on recommendation and have not looked back! Wish I'd joined earlier! Very welcoming and supportive coaches and a lovely community of members, and I always come out of a class feeling really good. The coaches are also very helpful with any concerns and offer tailored advice if you need it. Cannot recommend B42 enough

Nicholas David 5 months ago

Fantastic experience: I’m 3 weeks into my training with B-42 and honestly can’t get over how good the classes are. The sessions are tough — properly challenging — but incredibly rewarding. Every single time I walk out of the gym, I feel like I’ve accomplished something real. What’s made the biggest difference for me, though, is the support from Ben, Ffion, and Harry. Each of them brings something unique, and together they’ve added real value to the start of my fitness journey. Whether it’s technique, motivation, or just the energy in the room — they’ve been there every step of the way. I genuinely couldn’t imagine doing this without them. Thank you all! #B42Challenge #Grateful #FitnessJourney #SupportMatters

NEXT LEVEL FC 5 months ago

Fantastic experience: B42 is Fitness industry innovation at its finest, expert coaches, great environment, inclusive for all looking to take their fitness up a gear in a friendly supportive environment where they can feel comfortable

Natalie Kay 5 months ago

Fantastic experience: Unreal Experience at B42 – Best Gym in Cardiff Bay! I can’t recommend B42 enough! From the moment you walk in, the energy is electric and the community vibe is unbeatable. As someone training for Hyrox, I was looking for a space that really understands the demands of functional fitness – B42 delivers that and more. The coaches are world-class – knowledgeable, supportive, and genuinely invested in your progress. Whether you’re a beginner or a seasoned athlete, they tailor the sessions to push you safely and effectively. The programming is elite, with a great mix of strength, conditioning, and Hyrox-specific work that keeps every session fresh and challenging. The equipment is top-tier, the space is always clean and well-maintained, and the team running the gym clearly care about building something special. You don’t just come here to work out – you become part of a community that pushes each other to be better every day. If you’re in Cardiff and serious about fitness, especially Hyrox, B42 is the place to be. Absolutely five stars.

Kerrie VANCE 5 months ago

Fantastic experience: A community feel gym that has a different type of programme every day. The coaches are encouraging, supportive and really care about your journey and fitness. They have helped me enormously with my confidence and have turned me into someone who enjoys exercise and hates when I have to miss a session! Highly recommend if your looking for fun fitness and friends. ❤️

Becci Booker 5 months ago

Fantastic experience: I’ve been at B42 for nearly 6 months. I love the coaches, how much the classes challenge me and how if I ever have a slight injury they always provide me with another exercise so that I can still train. A lovely community of people

Tirion Rees 5 months ago

Fantastic experience: Amazing people, coaches and vibes. Would recommend to anyone whether completely new to the gym or a seasoned pro! Ben has transformed my training and got me back on track after injury. Couldn’t ask for a better PT

Siobhan Patten 5 months ago

Fantastic experience: Amazing gym with incredible coaches. Super supportive, friendly and motivating. Would highly recommend to anyone - classes are always varied and fun.

Kelly Reddie 5 months ago

Fantastic experience: It's a win win on all fronts. Great programs that change so you never get bored, awesome coaches and awesome people. I can see my body changing and you are encouraged and supported no matter where you are in your fitness journey.

Sian Jordan 5 months ago

Fantastic experience: This is the only gym I've ever stuck to! Love it love it love it. Friendly, supportive and motivational. Fitter than I have ever been. Highly recommend

Matthew Chapman 5 months ago

Fantastic experience: Best decision I made joining this gym. All of the coaches are motivating and knowledgeable. The classes are varied and so you’re never doing the same workout twice. I’d recommend anyone thinking of joining to do so asap!!

Gemma Morgan 5 months ago

Fantastic experience: been a member for almost 6 months now and its changed my life! the classes are all amazing and have done some 1-1 PT and small group PT all of which is fantastic. highly recommend!

B Kemal 7 months ago

Fantastic experience: Had two sessions at B42, and I'm already in love. Great vibe, great energy, and the community that comes with this gym is amazing. Couldn't fault the facilities, staff or the workouts. 10/10 gym, 10/10 vibes!

Louis James 1 year ago

Fantastic experience: B42 has been working with my ice hockey team to improve our fitness on and off the ice and what a difference it’s made! Great coaches, and no two workouts are the same! Would highly recommend.

Warren Murdock 1 year ago

Fantastic experience: Ben is an amazing PT, extremely friendly and will work with you to achieve your goals. Highly recommend!

Lynda Harrington 1 year ago

Fantastic experience: I recently joined the new B42 functional fitness facility in Cardiff Bay. The coaches are highly skilled and are invested in your progress. The best decision I've made in a long time.

Jay 1 year ago

Fantastic experience: Amazing classes , love how the trainers interact and motivate me . Easy parking is a big plus

Ffion McGowan 1 year ago

Fantastic experience: Great functional fitness facility, with an incredible coaching team and class set up!

Harry Amponsem 1 year ago

Fantastic experience: Engaging session, great people and fantastic sense of community! Can’t get any better

Tejiri Omovie 1 year ago

Positive experience: Great instructors. Excellent workout routine.

Greg Hay 1 year ago

Fantastic experience: The sessions are great, structured and fun with a really great group of people at each class. Ben’s fantastic, really knowledgeable and a great motivator. Highly recommended!

Lianne Jones 1 year ago

Fantastic experience: I’ve been part of B42 for more than four years now and have loved every minute. No two sessions are the same and challenge you whilst still catering to all abilities.

Angela Cox 1 year ago

Fantastic experience: I’ve been going to b42 for a year now amazing instructors make you feel welcome. Great workouts with lots of fun.

Victoria Jones 1 year ago

Fantastic experience: Ben is a fantastic instructor and PT and B42 is such a welcoming community - would highly recommend to anyone!

Ally Jack 1 year ago

Fantastic experience: Ben is an excellent instructor always makes exercise fun and engaging. Can’t recommend him enough!

Rhys Griffiths 1 year ago

Fantastic experience: Excellent programs for all range of abilities. Instructors are welcoming, patient and very knowledgeable and passionate about fitness.

Holly Hay 1 year ago

Fantastic experience: Fantastic classes and instructors! The workouts are tough but good fun and rewarding. Highly recommend!

Rhys Davies 1 year ago

Fantastic experience: Been using b42 for a few years - Great instructors - knowledgable, enthusiastic and a good laugh!

Sian Williams 1 year ago

Fantastic experience: Intense but fun sessions, helpful, supportive coaches, and the best community

Katy Forbes 1 year ago

Fantastic experience: Joining B42 and doing PT with Ben literally changed my life! Used to hate exercise and dreaded going to the gym but it’s a totally different experience with Ben and B42. He’s super knowledgable not just in exercise but also nutrition and rehab if you have any old injuries etc. His classes are all super welcoming, upbeat and have the BEST playlist. B42 is such a great community, massive, massive thank you to Ben!

April Coombs 1 year ago

Fantastic experience: Wish i could bottle up the feeling when i leave one of Ben’s sessions! Always leave feeling so amazing, hitting pb’s and pushing myself out of my comfort zone with the encouragement and help from Ben! He is so knowledgeable and motivating but also so fun. Couldn’t recommend enough

Rachel Selman 1 year ago

Fantastic experience: Ben is a fab PT and class instructor. Professional, personal and approachable. He makes exercise enjoyable. Treats everyone as an individual but always makes you feel part of the team. Can’t recommend enough.

Chris Jaffa 1 year ago

Fantastic experience: I’ve had PT sessions with Ben for over 6 months now, he’s incredibly knowledgable and always learning about his craft. He’s been super motivational with weekly touch points and always at the end of the phone. Also has been great at holding me accountable.

Rachel O'Keefe 1 year ago

Fantastic experience: I've been attending B42 regularly for 18 months. Sessions are challenging, but fun and inclusive for all abilities. Supportive, genuine coaches that go the extra mile ✨️

Charlotte Powell 1 year ago

Fantastic experience: For the last three years, I’ve been part of the B42 community. Whether that’s completing bootcamps, personal training sessions or a personalised workout plan - all have been welcoming, fun and challenging. I’m the strongest and fittest Ive ever been. 5 ⭐️ from me.

William Fitzpatrick 1 year ago

Fantastic experience: Ben is such a fantastic fitness instructor! Always pushing you to the limit in a fun and motivating way! I’m really enjoying my boot camp sessions in Penarth!!

Nomakha Harriate Mathonsi 1 year ago

Fantastic experience: Such an amazing experience with B42 the instructors are super good, great atmosphere and the training sessions are different every time so keeps things interesting and fun! Highly recommend it!

David Seward 1 year ago

Fantastic experience: Absolutely love B42. Instructors are brilliant and the classes are really well developed and fun and everyone is really friendly. Definitely have made a difference to my fitness.

Patsy Hunt 1 year ago

Fantastic experience: Since starting sessions with Ben, I feel more knowledgeable with nutrition and exercise, more confident going to the gym on my own, and most importantly I feel more positive about myself. Ben provides tailored programmes to help individuals achieve their fitness goals. We have check ins which keeps me accountable and informs him of any changes we may need to make going forward. He's a great motivator and the sessions are thoroughly enjoyable!

Llyr Morus 1 year ago

Fantastic experience: Having trained with Ben for over three years the transformation in my training has been amazing. His tailored programmes (amended every 5 weeks) and personal interest in each client makes him the best PT I’ve had. He ensures you keep on track and amends to suit if needed. Each session is focused and fun and makes training enjoyable. If you put in then Ben’s approach guarantees you results.

Ann Jones 1 year ago

Fantastic experience: Have been taking part in B42 for a few years. The workouts cover all range of abilities, where you train hard but laugh and have fun at the same time. Ben is a fab PT / class instructor, really knowledgeable and a great motivator. Training sessions are never the same so you never know what to expect. Great fun.

Michael Coggan 1 year ago

Fantastic experience: B42 is an amazing functional fitness experience. I've always loved the experience. It truly does push you to achieve your fitness goals whilst also having a fun and enjoyable time with people who are all trying to reach similar goals. Ben is always great at keeping people motivated and making sure people are having fun. If you're just starting your fitness journey or already a fitness fiend, then B42 is for you.

Fiona Grice 1 year ago

Fantastic experience: The most fantastic personal training experience. I leave our sessions feeling incredibly smug happy and powerful! Ben motivates, inspires, and pushes me to the fittest I have ever been. I used to see working out as a chore, a fad I would do for a few weeks, but Ben has helped me change my lifestyle and outlook on life!

Hannah Simister 1 year ago

Fantastic experience: If I could give 10 stars I would!! I have been doing Bootcamp 42 classes for just under a year now, I absolutely love it. Ben and the other trainers have created an inclusive community of like minded individuals with a shared goal for self improvement. The sessions are fun, varied and interesting, there are always different options of movements based on ability and you never are made to feel like the odd one out if you are not at the same level as others in the group. I started PT with Ben before joining Bootcamp 42 and I can honestly say that Ben is one of the most professional trainers there are - he is really friendly, understanding, motivating and incredibly knowledgable, he has formed a great network of trainers and individuals with Bootcamp 42, I am starting to feel really great about myself and my fitness levels are improving which is down to Ben and the community he's formed - I look forward to see it continue and be part of the B42 journey! Cannot recommend enough!!

Amy Cox 1 year ago

Fantastic experience: Finding B42 was the best thing for relighting my passion for fitness. Every session is different and tailored to your personal needs. All the instructors are a wicked laugh and make it lots of fun. Who doesn’t want to burn plenty of cals and it not be so serious! Highly recommend.

Danielle Taylor 1 year ago

Fantastic experience: Absolutely love B42! Been going for nearly 4 years. Ben pushes you to your max and you always walk away feeling like you accomplished something. Weather your a starter or expert its always fun, engaging and a great way to stay in shape!

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