Strength development
Build confidence with the fundamentals: repeatable technique, progressive loading and consistent training.

Rotherham · Carlton-in-Lindrick
Two independent gyms for strength training, powerlifting, bodybuilding and everyday progress—without the ego.
The Madhouse approach
Madhouse gives lifters room to focus and newcomers room to learn. The atmosphere is committed, local and welcoming—because a serious gym does not need to feel exclusive.
Get to know MadhouseChoose your location
Rotherham brings a darker strength-floor intensity. Carlton pairs focused training with a distinct local community feel.
Training at Madhouse
Build a foundation, prepare the competition lifts, develop barbell skill or train for your physique. The common thread is purposeful progression.
Build confidence with the fundamentals: repeatable technique, progressive loading and consistent training.
Train the squat, bench press and deadlift in an environment where focused barbell work belongs.
Develop barbell skill, speed and control. Ask the team about the right space and support for your session.
Train for muscle and physique development with purposeful volume, control and progression over time.
Placeholder imageThe atmosphere
Experienced lifters can get on with serious training. Newer members can learn the room, ask questions and build confidence. Both belong on the same floor.
Only at Madhouse Carlton
A dedicated tanning service with options for Madhouse members and non-members, available only while the Carlton team is staffed.
Placeholder imageFlexible access
The current R12 catalogue also includes concession, couples and seven-day options. Final eligibility and terms are shown before purchase.
70-day programmes
For members who want a defined period of trainer-managed support across training and nutrition, with gym access included.
70 days
1 PT credit each week
Gym access, enhanced training, nutrition support and trainer-managed delivery.70 days
2 PT credits each week
Gym access, enhanced training, nutrition support and trainer-managed delivery.70 days
3 PT credits each week
Gym access, enhanced training, nutrition support and trainer-managed delivery.Availability and final terms are confirmed in R12 before purchase.
Good to know
Current public Madhouse posts advertise access to both Carlton and Rotherham with the £27 monthly membership. Confirm the selected product details in the R12 joining flow before purchase.
Active member access is currently advertised as 24-hour. Staffed or manned hours are separate, and a first visit or access setup may need to happen while the team is present.
No. Madhouse presents both gyms as open to all levels. The training floors are strength-focused, but the environment is intended for beginners as well as experienced lifters.
Choose Join now and complete membership setup securely in R12, Madhouse’s member platform. The marketing website never takes card details.
Not directly on this site. Speak to the team in the gym or contact Madhouse to discuss availability. PT sessions are managed by gym staff or coaches.
Ready to begin?
Join securely through R12, Madhouse’s membership platform.