Steel Warriors is a UK charity that melts down knives taken off the streets and recycles them into free outdoor gyms. Through the sport of calisthenics, we show young people that lives can be built on steel, not destroyed by it.
“The best gym in the World”
Men's HealthOur mission is to create a UK-wide network of gyms that empower young people to pursue their passions and achieve their goals, while building stronger, more connected, and compassionate communities.

Confiscated and surrendered blades are collected from across London.

The metal is melted down. The weapon becomes raw material.

That steel is forged into calisthenics bars, free to use, all day, everyday.
We have built seven gyms from collected knives, and six are open to train at today. Every Steel Warriors gym is free to the public. No membership, no cost. Find your nearest and just show up.






“Steel Warriors is a great charity and trying to turn a negative into a positive.”Anthony Joshua OBE, Patron and two-time unified heavyweight champion
“Cue the Steel Warriors effect. A three-fold impact, it firstly takes knives off the streets. Secondly, it dissuades impressionable members of the community from being absorbed into gang culture and, thirdly, transforms the area from a potential hotbed for crime into something considerably more community-focused.” Men's HealthAll press coverage →
Sixteen free community classes every week across five London parks. All ages, all levels. Just show up.
See the timetable£20 a month powers our programmes in schools and youth settings. Monthly giving is what keeps the gyms free and the classes running.
DonateThe Steel Warriors x Gymshark collection. Every purchase funds our work with young people.
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