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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 off Clapham 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 Clapham.


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!

Clapham | Free trial class

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 only. See the available timetable here.


Clapham | 30 for £50






Bits from from today’s BWS WOD 🤸🏼‍♀️

Wall Facing Scissor Drill

Partner Assisted Split HSH
4x20 Seconds

Partner Assisted Pike HSW

📢 | Member Shoutout to these 3!

@jack_lynchhh @heather_fleming_ @jamiebutt_ crushing the Dorney Lake Triathlon last weekend 👏🏻

📸 | @foleysphotography_


☀️ | Gymnasium Outdoor workouts are BACK!!! Join us for some fun in the sun. (Sun not always guaranteed but good workouts & good vibes are). It’s Pride month so bright colours are encouraged! 🏳️‍🌈

📆 | 4th June - 9am, 10am, 11am

📍 | Clapham Common

🎟️ | Book in via the Events tab on WodBoard

🏳️‍🌈 | June = Pride Month!!

⚡ | Barbells & Bellinis

📆 | 3rd June - 11am

📍 | Gymnasium Clapham

🎟️ | Book in Via WodBoard

🥂 | We’ll be serving up a sweaty workout followed by a glass of Fizz! All late cancels & no show fees this month will be donated to Wandsworth Oasis, a charity providing support to those living with HIV. We’ll also be donating our lost property box if not collected by the end of the month 👀 We’ll be accepting any clothing donations for all of June!

👕| Get yourself a Gymnasium Pride T-Shirt from Tee mill (link in bio)

700 more photos added to the Team Games album!! Link in bio. ...

⚡️ | Gymnathlon tickets go on sale Sunday 21st May!

📆 | 17th June - 11:30am - 5pm

📍 | Rosslyn Park

🎟️ | There will be two ticket options:
- Event Only - £16 (Capacity of 150)
- access to the Gymnathlon
- T-Shirt
- access to the pay as you go Bar and Food Truck at the venue from 12-6pm.
- Event + After Party at The Perky Nell - £20 (Capacity of 240)
- access to the Gymnathlon
- T-Shirt
- access to the pay as you go Bar and Food Truck at the venue from 12-6pm.
- access to The Perky Nell from 6pm onwards

🏋🏼‍♀️ | This is an individual event that features 2 divisions; RX, and Everyday. If you train in the CrossFit programme and are comfortable with low volume Gymnastics and Weightlifting, including Kipping Pull Ups and Hang Power Cleans @60/45 then choose RX. If you typically scale workouts or train in our other programmes, choose the Everyday division. If you are unsure, please speak to your coach.

Team Games photos are up | Link in bio ...

🔥 Bodyweight Stronger 🔥 ...

🤩 | Get. Ready. For… The Gymnathlon!

📍| Rosslyn Park

📆 | 17th June

🎟️ I Tickets go live this Sunday 21st May
- Event Ticket
- Event + After Party Ticket (The Perky Nell)

There will be limited spaces for the Event + After Party so get signed up as soon as it goes live!

What. A. Day.

Anyone else got post event blues? 😢

Keep your eyes peeled for official photos from @roamcapture 👀

🎉 | Friday night Fuel social

These members have just completed our 4 week Fuel Nutrition course! Last week @gymnasium.fit_brixton hosted a sober social with treats from @freshfitnessfood and non-alcoholic drinks from @motherrootldn. A great chance to chat about how the challenge is going, socialise outside a sweaty gym class and show you don’t need a drink to have a good time!

💲| Check WodBoard for 15% discount code for MotherRoot!

👀 | Team Games Spectators & Supporters

🤗 | Anyone wanting to come along to watch the Team Games is more than welcome!

🍻 | No ticket is required - just turn up and support. Unfortunately the all inclusive bar option with BeetleJuice is fully sold out & competitors are not allowed to get extras!

🍕 | There will be a range of alcoholic and non alcoholic drinks as well as pizza available to purchase from the PizzaPost from 1 - 5.30pm

🤗 | Looking forward to Saturday!

Clapham rowing machines 💪 ...

Run club is the perfect container for athletes to gain running foundations, conditioning and confidence at all levels 🏃‍♀️ Look out for these sessions on Mondays and Wednesdays on the Wodboard! ...

Sunday Sweat living up to its name #athletica #hiit #sundaysweat |

Teams of 6... 2 x 18 Min Stations

3 People AMRAP Any cardio split up however you please
While 3 People complete 150 Snatches (50 each, 1 working at a time, broken up as you please) then Swap..
Then 66 Push Ups (22 each, split as you would like - Scale to Box Push Ups) then swap..
ONCE both groups of 3 have finished both stations then ALL 6 AMRAP Cardio until you reach 18 mins..

Station 2 Works the same but on the a different cardio... the movements are 150 Box Jumps/Step Ups and 66 Burpees

😋 | Who said eating well had to be boring?

🍴 | Fuel members smashing their 4 week challenge and getting creative with their meal prep. We love it!

😝 | Sign ups for the Team Games draw to a close this Sunday 7th May!

📝 | If you are signed up, please be sure to fill in the Google Form. Team breakdowns and Heatlists will be sent out on Tuesday, with workouts released on Wednesday and the Live Briefing on Thursday on the Clapham Instagram.

💪🏻 | Looking forward to Saturday!

Scenes from Athletica! 🧨 ...

⚡️ London Hyrox 2023
👏🏻 Congratulations to all Gymnasium Athletes who crushed it!! A big shout out to all the supporters who cheered them on!
🤩 We’ll be cheering some of you on at the World Champs at the end of the month!

Join us ! Fuel Online Seminar, Wednesday 6.30pm via zoom
@mindfulme_southwest, Mindfulness Meditation Teacher Mindfully reducing stress and increasing efficiency
"In this workshop we will explore common obstacles that hold many back from staying consistent and motivated with their gym routine and health journey. I will combine the science of mindfulness meditation with practical lifestyle tips and tools to help you manage stress, increase motivation and find more balance."
Book on via WODBOARD, open to ALL members!

#tb to The Riot 🤩

What a day! Already excited for the next event, The Team Games. Book your place on wodboard now for May 13th! 👩🏽‍🤝‍👩🏼👫

All smiles at all times in Clapham ☺️ ...

Congrats to everyone who smashed the London Marathon!

Bit of Monday Motivation 💪

No better place to grind it out and work on your goals…

🏃🏼‍♀️🏃🏻🏃🏽‍♂️ | Good luck to everyone running the London Marathon tomorrow!! ...

Join us on Monday for another online Fuel seminar with nutritional therapist @clarissaberryhealth.
Monday 24th April - 6.30pm via zoom
Open to all members, book on via WODBOARD under events

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Based on 56 reviews
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Will StogdaleWill Stogdale
14:45 02 Aug 22
I love this place! Been coming for a few weeks now and can’t wait to get going each day! It’s a hard workout, but the coaches and community are great!
Luke RowLuke Row
05:07 07 Apr 19
I joined Gymnasium after a friend recommended it to me and boy am I glad I did. Literally the best decision I’ve made for my health and fitness. Great value for money if you go regularly. The coaches are fantastic, I’ve learned so much in such a short space of time. The facilities are great too and it’s refreshing to be part of a gym that everyone looks after and the community spirit here is what breathes life into the place. I love it!
Dan JonesDan Jones
16:34 25 Nov 18
We absolutely loved Gymnasium! It is has been a challenge to find a gym/box that comes close to ours back home in Australia, but Gymnasium made us feel like home. The coaches were brilliant and the other members were so nice and welcoming.The equipment is all in excellent condition and the facilities are top notch. Would absolutely recommend to anyone who is looking for a great gym or CrossFit box.
Colin BurkeColin Burke
11:01 17 Oct 18
Great community in a great facilities. With coaches who have the ability to adjust and explain workouts for all abilities from first timers to competing athletes. Would highly recommend.
Aurélie RandolphAurélie Randolph
19:46 23 Aug 18
Gymnasium and crossfit have literally changed my life. I finally found something I love doing and always look forward to. The diversity of the classes and the possibility to also do your own thing in open gym makes it the perfect place to go to.Since I started I've become much stronger, faster, fitter, leaner but also happier in my body!The coaches there are incredibly knowledgeable, help you become better/stronger, but also care about your progression and make sure you exercise safely. They're also friendly and always genuinely make you feel welcome and part of the community which, let's be honest, is not something you find in your normal gym.The community and social aspect are pretty awesome too, I've only joined 8 months ago but feel part of the family and have made some really good friends there.If you want your face on a billboard at Clapham North, make cool friends, get fitter, stronger and happier, this is the place! 🙂


Clapham North Arts Centre
26-32 Voltaire Rd

Gym entrance | what3words | w3w.co/mugs.exam.cherry
Bike rack 1 | what3words | w3w.co/cloud.link.danger
Bike rack 2 | what3words | w3w.co/entire.slate.moves
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