Welcome to The Solid Project
The holidays are over, and it’s time for you to get back into routine. Starting on January 4th, you’ll begin a 6-month program in a small group with one shared goal: weight loss or muscle building. No loose drop-in classes and no no-strings-attached approach. Instead you get a fixed group, a dedicated coach and a plan that builds up step by step. For beginner and advanced experiences.
It all starts with the Meet Event
We kick off together at the Meet Event. To measure is to know, and you’ll want to know exactly how weight loss or muscle building works in your body and what to expect over the next 6 months. The day includes:
- A thorough baseline measurement, body composition and progress photos, so that in 6 months you can see exactly how far you’ve come.
- The first masterclass, tailored to your goal: losing weight or building muscle.
- Meeting your Solid Project group, the people who’ll share your goal and your journey for the next 6 months.
Your path in 3 phases
The Solid Project runs in 3 blocks of 8 weeks. Each block has its own focus, so your body gets a new stimulus every time instead of doing the same thing for 6 months.
Phase 1: Foundation (weeks 1–8)
You build your technique and your rhythm. This is where you get used to your new schedule and set your first habits around nutrition and recovery. The block ends with your first interim measurement, so you can see early on, in black and white, that it’s working.
Phase 2: Build-up (weeks 9–16)
The intensity goes up. Halfway through the program, the second Masterclass follows, on nutrition and behavioral change. This is the block where a strong group makes the difference.
Phase 3: Perseverance (weeks 17–24)
You take the final steps toward your goal. The block ends with your final assessment, and in your last 1-on-1 we’ll discuss how to keep your results for life.
Your group is your strength
You’re not doing this alone. Your Solid Project group follows the same program, works toward the same goal and trains together every week. The same people, the same journey, with the flexibility to fit it around your life. And beyond your group, everyone starting in January is part of the same Solid Project community.
What you get
- 2 fixed strength sessions per week for your group (60 minutes each). You can choose out of 3 options each week which ones fit you best
- One yoga class per week, at a time of your choice from the Solid schedule, to support your recovery
- Unlimited access to the gym outside your sessions
- A 30-minute 1-on-1 with your coach every month, with measurements at key moments in your journey
- Two in-depth Masterclasses on training, nutrition and behavioral change
- A group channel and a short weekly check-in, so you’re never left on your own
- Monthly lifestyle challenges, within your group and across the whole project, also outside the gym
- An official closing event with a look back at your results and an award ceremony
What we ask of you
Commitment. For these 6 months, your only job is to show up twice a week. We’ll take care of the rest.
Missed a strength session? Make it up within 7 days, in your group’s third session or in a regular group class, and it counts as attended. You can miss a maximum of 4 strength sessions over the 6 months without making them up.
Stopping midway is not possible, except in the case of a demonstrable injury or medical necessity. If something is bothering you in your schedule, routine or program, you can always meet with your coach to find a way to adjust it together.
Good to know
All coaching included in the Solid Project is held in English.
Your reward
Complete the project within the attendance rule and you get 20% off an annual Unlimited subscription at Solid Health Club.
Investment
The Solid Project costs €150 per month, including unlimited gym access. Already a member of Solid Health Club? Then you pay €100 on top of your current membership.
After the 6 months, you can move straight on to a new project, or continue with an Unlimited annual subscription at 20% off.
Sign up
Want to join? Send an email to [email protected] before 21/12/2026 with:
- Your name
- Your goal: weight loss or muscle building
- Are you already a member of Solid Health Club? Yes / No
- Your availability: Mark every moment you could train with an X. The more you mark, the easier it is to find the best time slots for your group.
| Time | Mon | Tue | Wed | Thu | Fri |
|---|---|---|---|---|---|
| 07:00 | ☐ | ☐ | – | ☐ | ☐ |
| 08:00 | ☐ | ☐ | – | ☐ | ☐ |
| 12:00 | ☐ | ☐ | – | ☐ | ☐ |
| 18:00 | – | – | ☐ | ☐ | ☐ |
Morning: 07:00 and 08:00. Lunch: 12:00. Evening: 18:00. ☐ Available · – Not available.
Based on everyone’s availability, we choose the most popular moments for each group. We’ll let you know the final training times once the groups are complete.
Spots per group are limited, so don’t wait too long!
Register online
Sign up before 21/12/2026. Select every training moment you could attend. Solid Health Club will contact you to confirm your group and final training times.
Prefer to sign up by email? Contact [email protected]. Your details will be used to organise The Solid Project. Read our privacy statement.