
Do you imagine training in a bright space, just a few steps from your home, with complete privacy?
A garden gym makes this idea a reality – a comfortable and quiet environment designed around your needs, allowing you to train consistently throughout the year.
In this complete guide, we explain how to create the ideal gym garden, using real projects, detailed layout examples, equipment recommendations, and practical preparation advice.
Table of contents
Creating a garden gym offers clear advantages over traditional commercial gyms. You gain complete privacy, eliminate waiting times, and remove the need to travel. Your training space is always available and adapted entirely to your schedule and lifestyle.
In addition to convenience, a garden gym represents a long-term investment. It removes monthly membership costs and adds a functional, high-quality feature to your property.
Many clients also use their gym garden as a flexible wellness space, combining training with stretching, meditation, or recovery.
The most important factor is choosing the right size and construction quality, ensuring the space motivates regular use and remains comfortable throughout the year.
If you would like personalised guidance, you can contact our team here.
Every garden gym is different. The right layout depends on how you train, how many people will use the space, and how much room is available.
Below are three real-world examples of garden sheds that work particularly well as gyms.
We’ve also added professional equipment recommendations tailored to each size.
These are just starting ideas that you can customize to suit your workout style and other needs.
Designing a successful gym garden goes beyond the structure itself. Equipment selection plays a key role in how functional and comfortable the space will be.
With our partner John Peter Fitness, we help design each space taking into account the surface area, layout, and type of training, to recommend solutions that make the most of every meter of the facility.
Careful planning allows smooth movement, correct equipment spacing, and safe training conditions regardless of gym size.

The Olivia ALU is a modern 14 m² shed, with exterior dimensions of 3.85 × 3.85 m and large sliding aluminum doors with tempered glass.
This size works particularly well for light cardio, mobility training, yoga, pilates, and functional workouts using free weights. Natural light is a defining feature here. Large glazed openings create a bright, inviting atmosphere that encourages regular use and improves overall comfort.
This type of gym garden can also function as a hybrid space, combining physical training with meditation or relaxation. A place designed for you to take care of yourself without distractions, mere steps from home.
Recommended equipment:
Does this model fit your daily routine?
👉Contact our team and we’ll help you design your ideal gym.

The Roberta 22 m² offers a spacious and light-filled environment, ideal for combining cardio and strength training.
A medium-sized gym garden offers significantly more flexibility. With a bit more space at hand, you can comfortably combine cardio machines with strength training equipment while maintaining free movement throughout the room.
It’s easy to imagine a complete routine: running or cycling to warm up, strength training on the multi-station, and finishing with rowing or stretching.
This model is perfect for people who alternate between different workout styles, as the space does not need to be reorganised between sessions.
It’s also ideal for training as a couple or family, as two people can share the space without interference.
Roberta and similar models adapt very well to mixed uses: daily gym, recovery and stretching area, or even social space for shared workouts or group fitness classes.
Recommended equipment:
Want to adapt this space to your training style?
👉Contact us and we’ll prepare a personalized proposal for you, no strings attached.

The XL 1 is a large-format garden room measuring 43 m², designed to create a comprehensive gym with multiple training areas.
With more than 40 m² available, it becomes possible to define separate training zones for cardio, strength, functional workouts, boxing, and recovery. The layout supports intensive training routines and shared use, while still maintaining comfort and safety.
This space is ideal for demanding workouts, varied routines, and sessions with multiple users simultaneously. It’s also perfect for those who combine sport and wellness: after an intense session, the yoga or stretching area becomes a place to unwind.
It can even work perfectly as a multifunctional space, suitable for personal trainers, private classes, or shared sports activities.
Recommended equipment:
Are you thinking about a complete home gym?
👉Talk to an advisor and receive a personalized recommendation and estimated budget.
All the sheds with 44 mm, 58 mm and 70 mm walls from Casetas de Jardín 24 include standard features that make a difference compared to other sheds on the market, ideal for intensive use as a gym:
These features make a garden gym shed from Casetas de Jardín 24 a solid, durable solution ready for daily use for many years.
There is no single size that fits all gyms, but there are some useful guidelines:
If you have doubts about what size suits your plot and your training style, the quickest way to clear up any doubts is to talk to an advisor who can review your specific case.
| Model | Surface | External dimensions | Equipment capacity | Ideal for |
|---|---|---|---|---|
| Olivia ALU | 14 m² | 3.85 × 3.85 m | 1 cardio, dumbbell bench, mat | Individual training, yoga, basic strength |
| Roberta | 22–23 m² | ≈ 6.86 × 3.85 m | 2 cardio, multi-gym, bench, rowing | Couples or families |
| XL 1 | 43 m² | 8 × 5.5 m | Full cardio, multi-function, boxing | Complete home gym |
To use your garden gym year-round, we highly recommend installing insulation in the floor and roof, and optionally in the walls. Casetas de Jardín 24 offers specific insulation kits for most models, which are easy to install during assembly.
In addition to improving thermal comfort, insulation helps reduce noise, which is especially useful if you use weights, loud music, or cardio machines.
The recommended garden rooms have 28 mm-thick floorboards, designed to withstand heavy loads. Even so, to protect both the floor and the equipment, it’s a good idea to add:
For a comfortable gym, you’ll need several power outlets (for machines, TV, chargers), good LED lighting, and cross-ventilation or an air conditioning system. Tilt-and-turn windows make it easy to ventilate after each session, reducing indoor humidity.

One of the most striking projects delivered by Casetas de Jardín 24 is a garden gym built in Benahavís, Marbella, combined with a large wooden terrace.
This project features generous glazed openings, premium cardio equipment, and clearly defined strength and functional training zones.
You can view the full Marbella garden gym project here.
Urban planning regulations vary from municipality to municipality, but generally, single-story sheds of moderate height are considered light or auxiliary structures. In many cases, prior notification or a declaration is sufficient, especially if the garden room does not exceed a certain size and is not used as a dwelling.
Before installing your garden gym, we recommend consulting with your local municipality or a trusted architect. Our team can also advise you on the standard procedures and documentation typically required by municipalities.
The final cost of a garden gym depends on the size, wall thickness, level of insulation, and whether you hire a professional or do it yourself. As a rough guide for mid-range/high-end wooden gyms:
And let’s not forget the sports equipment (machines, weights, rubber flooring, etc.). The advantage is that it’s a long-term investment: your own private gym, with the quality equivalent of a wooden house, designed for intensive use and with a 5-year warranty on the wooden components.
Casetas de Jardín 24 is part of the Hansa24 Group and has over 20 years of experience in the design and manufacture of sheds and wooden houses throughout Europe.
If you would like us to help you determine the best garden gym shed for your plot, budget, and type of training, our team will be happy to assist you.
For frequent use as a gym, we recommend walls at least 44 mm thick, and preferably 70 mm for better insulation and greater structural strength. All garden rooms from Casetas de Jardín 24 come with walls at least 44 mm thick and include double glazing, metal reinforcements, and other premium features that enhance comfort.
Yes. Models with 28 mm thick floors, treated base beams, and reinforced structures, such as Olivia ALU, Roberta, or XL 1, are designed to withstand heavy loads. Even so, it’s advisable to distribute the weight, use rubber floor mats, and consult our technical team if you have any questions.
With a proper floor and roof insulation kit, double-glazed windows, and a suitable heating or air conditioning system, you can train comfortably year-round. Many customers combine a heat pump or air conditioning with the optional insulation kits.
Mainly, apply exterior wood protector every few years (depending on the product), keep gutters and roofing clean, ventilate the space regularly, and periodically check the screws. It’s simple maintenance, similar to that of a wooden pergola or porch.
It depends on the size: a small garden room can be assembled in 2–3 days by two people, while a large garden room may require 4–6 days, especially if insulation also needs to be installed. If you’d rather not do it yourself, you can hire a professional assembly service.
If you’re already convinced that a garden gym shed is the ideal solution for working out without leaving home, the next step is very simple:
👉 Contact Casetas de Jardín sales team
Or, if you prefer to look for more inspiration, you can see all available garden room models here.