fbpx Skip to Content

Our purpose is simple: to build the best gym in the world; a gym that improves our members’ fitness in a place where everyone feels they belong.

We are a strength, conditioning & mobility gym based around expertly coached group training. We know that getting fitter is better, easier to stick to & more effective when done together so our community is at the very heart of what we do.

We cater for all abilities; from people with limited experience but a desire to get fit, to those looking to add a technical & competitive element to their training.

Our large space, conveniently located on Wandsworth High Street, is stocked with top of the range equipment and great changing, showering & communal facilities with free towels & toiletries.

Gymnasium is the only certified B-Corp gym in the UK and recently appeared in Men’s Health as one of the World’s Best Gyms.

We are a registered CrossFit affiliate – Gymnasium CrossFit Southside.

Mix & match to ensure well rounded fitness

Athletica – mix of cardio, body weight and strength at high-intensity

Stronger – focusses on building fundamental strength with pushes, pulls and squats

CrossFit – constantly varied mix of weightlifting, gymnastics & cardio at high-intensity

Olympic – technically complex, compound lifts

Motion – flexibility, joint strength & stability.

Read more about our classes

We have three types of membership which give access to different classes and each one of those has options for the times you can access the gym a month; any time of the day or evenings & weekends only. As a new member you can also get a 25% discounted 3 month option these.

Athletica – Access to Athletica classes

Anytime membership – £135

Gymnasium – Access to Athletica, Stronger, Motion classes

Evenings & weekends membership – £165

Anytime membership – £185

Gymnasium Plus – Access to Athletica, Stronger, Motion, CrossFit, Olympic & Open Gym classes

Evenings & weekends membership – £205

Anytime membership – £225


30 days for £50

To really help you get a feel of what Gymnasium is all about you can get a 30 day trial membership with unlimited classes, maximum of one a day, for just £50. This includes access to all Gymnasium membership classes, though some busy times are restricted to full members.

If you have previous CrossFit access and would like a Gymnasium Plus 30 day intro please email  

Buy 30 for £50 today

Free single class trial

Book a free, no obligation trial by selecting a class and a time, filling in and submitting the form.  Athletica is our most accessible class which mix of cardio, body weight and strength at high-intensity. Stronger focusses on building fundamental strength with pushes, pulls and squats and absolutely no cardio!

If you have prior CrossFit experience and would like to book a CrossFit class please email Coach.

Book free class

25% 3 month discount

As a new member you can also get a 25% discount on a 3 month membership. Ask at your trial, at the end of your 30 days for £50 or email Coach to enquire.




YES LIZ!!! Huge congratulations to Gymnasium member @elizabethcr21 on her England rugby selection | Good luck against Scotland today. 🎉👏🔥😍 @englandrugby #rugby ...

120 2

Pump it! 👊

It’s always worth it for the fist bump from coach @bigredolivier

51 0

THE RIOT | Brixton vs Clapham vs Wandsworth | Sign up on WodBoard as a mixed pair or solo and we will match you up. ...

40 0

👀 | Do you want to try one of the best gyms in the world?

🔗 | Sign up to our £50 offer for your first 30 days! Link in bio.

16 0

Sign ups for our nutrition course are now live!

🥗| Fuel fundamentals is a 4 week course combining presentations, 1-on-1 support, toolkits, recipes and fitness classes to help you develop a better understanding of, and attitude towards nutrition, health and fitness and how they work together.

😘 | Fuel fundamentals is not a quick shred, calorie counting, weight loss course. Through this holistic approach previous participants have seen an improvement in sleep, focus, strength and muscle and, on average, 2kg weight loss!

🎂 | We help you give up processed food, sugar and alcohol to hit the reset button on your nutrition, break the cycle of bad habits and set the foundation for long term healthy habits.

👩‍🏫 | Participants will get individual guidance on how to set and achieve personal goals, Education on nutrition and portion control, A comprehensive meal planner and recipe book, specific Fuel group workouts, support from a dedicated coach and the Fuel community, guidance post-challenge, Inspiration & insight from guest speakers.

⚖️ | This is not for the uncommitted or those looking for a quick fix, but we, and your fellow participants will be there for you throughout the process. We know that better nutrition in combination with classes based our 3 pillars of fitness deliver incredible results.

📅 | Here are some key details:
- In person kick-off Sunday 16th April at 12pm, location: Gymnasium Wandsworth with coach Ryan - Full 4 week course stats Monday 17th April

Sign up via the link in bio.

4 0

🧢 | Gymnasium Caps

Get yourself a Gymnasium Snapback before they’re all snapped up!

🔗 Link in bio

76 2

Scenes from the Stronger studio 💪 ...

48 0

Are you ready for our first event of 2023? Drumroll, please...it's THE RIOT! This mixed pairs event is happening at all 3 of our gyms and we couldn't be more stoked about it.

Here's the deal: there's only one division, so no matter your level, you can get in on the action. Find a partner from your gym and sign up, or let us play matchmaker and pair you up with a like-minded athlete.

Mark your calendars for April 15th - that's when we'll be throwing down from 9am to 3pm. But wait, there's more! After the event, we're heading to The Upstairs in Brixton to party the night away.

Sign ups go live on Wodboard TODAY, so don't miss out on the chance to compete and celebrate with your fellow Gymnasium members.

Let's do this! 🙌🏻

49 2

Full steam ahead! 👊 ...

54 1

From loo rolls & energy suppliers to our Legends program & the red bar of shame we are committed to using our business as a force for good. We are proud to be the only B Corp gym in the UK.

Becoming a B Corp was a key objective for us to demonstrate our commitment to the community we serve, the staff members we support, and the environment we use.

To become a B Corp, we had to meet rigorous standards in five key areas: governance, workers, community, environment, and customers. We achieved this through a range of initiatives that we’re proud of, such as providing salaried positions in an industry dominated by hourly workers, creating an internal Coach Academy program for staff development, offering pay above industry average wages, and providing a range of other benefits.

We’ve also created programs to give back to the community, such as our Spartan program for underprivileged youth in collaboration with local charities and our free Legends classes for those over 60. We’re committed to reviewing significant suppliers and selecting those that meet our high standards, including Teemill, Eleiko, and Nocco. We also prioritize local alternatives whenever possible.

Finally, we’ve implemented charitable giving policies to support local charities through the generation of funds collected from no-show/late cancellation fees and our events.

Being a B corp puts us in the company of other well-known brands such as Patagonia, The Body Shop, Burton, Ben & Jerry’s, and Innocent, who prioritize sustainability and being a force for good in the world.

@bcorpuk @bcorporation #bcorp #crossfit

37 1

Have a wonderful Sunday, team ✌️ ...

31 0

Well done to everyone who smashed 23.2 at the weekend!

Don't forget about our Gymnasium Crossfit Open social competition going into the last week!

Upload a photo or video of yourself or your friends competing in the The Open workouts onto your Instagram, tag your respective Gymnasium and add the hashtag #gymnasiumopen23 to go into the draw to win a £100 Lululemon voucher!

Also don't forget about The Open After Party held on Saturday evening from 6pm at the Stonhouse Pub in Clapham! Come grab a beer, share Open stories and celebrate the victories over the last 3 weeks!

31 0

Barbells and burpees on the dance door 💛 ...

54 1

So proud of all our members taking part in the Open, you’re absolutely crushing it! 🧨💥 ...

90 0

Best of luck today, team! Give it horns!!!

43 0

What an epic bunch of athletes smashing 23.1 | Hard work, lots of laughs and huge support for the team | Link to photos in bio 📸 | ...

68 2

We love to see your Gymnasium Crossfit Open successes! There were some amazing achievements last week and we want you to share them with us!

Upload a photo or video of yourself or your friends competing in the upcoming workouts, 23.2 and 23.3 onto your Instagram, tag your respective Gymnasium and add the hashtag #gymnasiumopen23, and go in the draw to win a £100 Lululemon voucher!

If you post and tag for the next 2 weeks, you will have 2 chances to win.

56 0

Nothing like #TeamHunt on a Thursday morning to get your heart and muscles thumping! ❤️‍🔥💪💣💥 ...

47 1

💪 Snippets of absolute machines smashing their Open workout 🫶 ...

75 1

Have you signed up for The CrossFit Open yet? 👀

Sign up before 16th February to take part!!

The 3 workouts will be held on Saturday mornings - 18th, 25th & 4th. Get involved to cheer on other members & test your fitness on the worldwide leaderboard!

Sign up at www.crossfit.com

22 1

Massive shout out to those members who smashed @hyroxuk in Glasgow this weekend!! 🔥🏃🏼‍♀️🔥

Who’s signed up to the next one? 👀

79 1

When you and your partner are just vibing it out… 💃🏼🕺 #BringAFriend

4 x 6 min stations with 90 sec rest
Partnered YGIG

Try finish all stations

1) 60 synchro sit ups
120 hand taps in the high plank position then AMRAP burpees!

2) 60 box jumps
60 cal row
Then AMRAP box step ups

3) 30 D ball to shoulder
60 Plate bent over rows
Then AMRAP 1 rep at a time plate hops

4) 50 cal Echo
50 double DB thrusters
Amrap Glute Bridge

5 min coach led finisher

77 0

We are so happy to celebrate Steph, the silent assassin, works hard and pushes those around her to become better. Steph has come on leaps and bounds with her training recently and we're so proud of her! Through pure hard work and few words, she teaches you how to go about your training whilst being a great member of our community!

She’s lovely, dedicated and inspiring 🙌🏻

Steph, thank you for being you, we are proud to have had you at Gymnasium for all these years!!!

94 9

The Crossfit Open is almost here!

Coach Tim explains how Saturdays are going to work and everything you need to know from how to book in, when the workout will be explained, how the heats are drafted and where to find your heat times.

If you have any questions, please email tim@gymnasium.fit

2 0

What goes on in Studio 1 on a Wednesday? 👀

Our Stronger class!! 💪🏻

Get booked in, get stronger 🔥

#strengthtraining #strong #fitness #workout #wod #workoutoftheday #gymnasiumstrength #londongym #workoutmotivation #resistancetraining

45 1

👟| Run Club album dropping soon!

Join the squad, Mondays and Wednesday’s - book in on wodboard… Open to all members with all running abilities!


43 0

What’s better than an Athletica at Gymnasium? Bringing a friend to Athletica!!

Bring a friend for free on Sunday 12th for a Valentines workout ❣️ Book into the class as normal and send the link to a friend to book (link in bio, click free trial).

We’ll be raising money for the British Heart Foundation! To get involved, you can get your baking hats on and donate cakes for us to sell. Or bring cash on the day and enjoy home baked treats after a Sunday sweat 🧁

#britishheartfoundation #charityworkout #partnerwod #partnerworkout #gymnasium

26 2

🦾| Scenes from studio 2, grinding out those reps ...

39 0

What is the open? Here’s coach Tim from @gymnasium.fit_clapham giving you the lowdown 🏋🏼‍♀️

Get signed up!!


30 0

What goes up, must come down 😅 - gotta love wall balls and down ups! ...

53 2

🫠| Motion Recover, the best antidote for tired bodies, stiff muscles and introducing more mobility to your movements. ...

24 1

🔥Wandsworth crew know how to bring the heat! ...

39 1

Monday Motivation🔋

You only regret the workouts you didn’t do… #youknowitstrue

64 1

Super excited to announce our line up of seminars as part of our Nutrition Course, Fuel Fundamentals. The seminars are open to all Gymnasium members! Do you have questions around how and when to eat around your training routine or what should I eat right after a workout? Join us tomorrow evening on zoom for a Q&A Panel centred around Optimising our health and sports performance with Dr. Brian Carson, Head of Science and Innovation @wholesupp. Please email sophia@gymnasium.fit to receive the zoom link.
In our Wandsworth branch, we will have in person seminars, schedule as follows:
Thursday 2nd Feb at 6.30pm: The power of breath
Thursday 9th Feb at 6.30pm: Nourish & Flourish
Book on via wodboard!

19 2

Just as a reminder, here are the updated Open Gym slots. Pro tip: save this post to check back if ever you’re in doubt about what’s what 😉

Open Gym:
This is available for members on a Gymnasium or Gymnasium Plus membership. It is aimed at people who may wish to develop a specific gymnastics skill or programme a coach has given you, or an opportunity to catch up on a missed Stronger session from the week.

Open Gym Plus:
This is for Gymnasium Plus members only and is a chance for Plus members to work on anything Crossfit, Olympic or Strength they wish.

Coached Open Gym:
This is in place of the Skills Clinic on a Tuesday evening. This is a chance for members to come in and work on something under the watchful eye of a coach. Please note this is not a standard coached class, so you must come along with either a programme to work on, or something in mind you wish to learn.

28 1



87 Wandsworth High Street
SW18 4TF

Gym entrance | what3words | w3w.co/lucky.cake.waving
Bike rack 1 | what3words | w3w.co/online.raves.healthier
Bike rack 2 | what3words | w3w.co/cargo.plans.even
Back to top
× WhatsApp

Free trial | 1 month for £50 | 25% off 3 months