CrossFit TBB The Building Box · Belfast
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Belfast · Est. The Building Box

TRAIN WITH INTENT.

Belfast's No.1 CrossFit space. Coach-led, community-driven training with in-house programming, a private recovery suite, and qualified instructors in every class.

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Owen O'Cork Mill · BT5

BELFAST'S PUREST CROSSFIT SPACE

Stronger every session.

Structured, coach-led CrossFit for every level — from your first class to the competition floor.

Start your trial week Why TBB

01 — About CrossFit TBB

A COACH-LED COMMUNITY BUILT FOR SERIOUS, SUSTAINABLE PROGRESS.

/ 01

Real community

A welcoming room where members push each other. You'll know names by your second week.

/ 02

Structured training

In-house programming with a CrossFit-dominated schedule, so every session has a purpose.

/ 03

Expert coaching

Qualified instructors lead every class with hands-on, interactive coaching — technique first, intensity second.

/ 04

Premium facilities

Top-quality equipment, open-gym access and a private recovery suite — sauna, cold plunge and physio.

02 — What we offer

Programmes for every stage of your training.

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CrossFit classes

Coach-led, varied daily workouts on an in-house programme. Scaled for every ability.

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Open gym

Train on your own schedule with full access to top-quality equipment and floor space.

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Competitor training

Focused programming and coaching for members chasing the competition floor.

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Recovery services

A private recovery suite with a infrared sauna, cold plunge, and in-house physio & massage — recover as seriously as you train.

View recovery

03 — Memberships

Simple plans. Serious training.

All sign-ups run through WodBoard.

3 Class Pass
£40one-off

Drop in or test the waters.

  • 3 sessions to use as you like
  • CrossFit, CX or Team classes
  • Coach-led, fully scaled
  • Valid for 2 weeks
Buy pass
Affiliate
£95/ month

Everything, every day.

  • Unlimited classes
  • Unlimited open gym access
  • Recovery box — sauna & cold plunge
  • In-house programming
  • Ongoing · 90-day minimum term
Join now
Foundation
£50/ 4 weeks

Ease in at your own pace.

  • Unlimited open gym
  • 2 classes per week
  • CrossFit, CX or Team classes
  • Rolling — no minimum term
Join now
Compare plans
3 Class Pass
£40 · one-off
Affiliate
£95 / month
Foundation
£50 / 4 weeks
CrossFit, CX & Team classes
Unlimited classes—2 / week
Open gym access—
Recovery box (sauna · ice · physio)——
Rolling membership—
No minimum term90 days
Buy pass Join now Join

Do I need to be fit before I start?

No. Every class is scaled to you, and a £1 trial week is the easiest way to find your feet.

How do memberships work?

Choose unlimited Affiliate, a rolling 4-weekly Foundation plan, or a one-off class pass. All sign-ups run through WodBoard.

What should I bring to class?

Trainers, comfortable kit, and a water bottle. Everything else — equipment and recovery — is here.

Can I just try it first?

Yes — start with a trial week. £1, no commitment, just turn up and train.

04 — Premium recovery

Recover like the work matters.

Training is only half of it. Our private recovery suite is built to bring you back stronger for the next session.

  • Infrared sauna
  • Cold plunge
  • On-site physio & masseuse
  • Private sessions
  • Showers & changing facilities
Book a recovery session

05 — Member stories

Results you can feel — and a room that has your back.

"I walked in having never touched a barbell. Six months later I'm fitter than I've ever been — and it's the coaching that did it. They meet you exactly where you are."

Rachel M.
Member · 1 year

"Best community in Belfast. The recovery room is a game-changer after a heavy week."

Conor D.
Member · 2 years

"The trial week made starting completely painless. I never felt out of place."

Aoife K.
Member · 8 months

06 — Resource hub

Latest from the box.

Visit the resource hub
Training

How to scale a workout without losing the stimulus

May 28
Nutrition

Fuelling for CrossFit: a simple framework for busy weeks

May 14
Beginners

Your first month at TBB: what to expect, week by week

Apr 30
Competition

Off-season programming: building a base that lasts

Apr 18
Podcast

Ep. 12 — Building a beginner's mindset

42 min
Podcast

Ep. 11 — Recovery that actually works

38 min
Podcast

Ep. 10 — Inside our in-house programming

51 min

Your first class is free

Come and find out what you're capable of.

Coach-led CrossFit for every level, in East Belfast. Start with a £1 trial week — no experience needed, no pressure, just good training.

START YOUR TRIAL WEEK View memberships