The average backyard pool in Europe is about 4×8 meters. That’s roomy enough for a relaxing swim, but probably not ideal for hosting a water polo match! When it comes to pools, size matters—not just for the look but for how you’ll use it. In this guide, we’ll walk you through everything you need to know about pool sizes—what works, what doesn’t, and how to choose the right fit for your space, budget, and lifestyle. Let’s dive in (no pun this time).
Picture this: a cozy 3×6 meter pool for small spaces, perfect for a refreshing dip after work. Or maybe a larger 5×10 meter pool for family fun and weekend barbecues. Whatever your vision, the size of your pool can make or break the experience. In this guide, we’ll walk you through everything you need to know about pool sizes—what works, what doesn’t, and how to choose the right fit for your space, budget, and lifestyle. Let’s dive in (no pun this time)!

5 Factors to Consider When Choosing Pool Sizes
1. Purpose of the Pool
The primary purpose of your pool determines its size:
- Relaxation: A smaller pool, around 3×6 meters, is perfect for cooling off or enjoying quiet moments.
- Exercise: If you plan to swim laps, aim for at least 10 meters in length and 2.5 meters wide.
- Entertainment: A larger pool, like 5×10 meters, accommodates guests and provides space for games or lounging.
2. Available Space
Measure your yard and account for additional features like decking, landscaping, and safety barriers. Ensure there’s at least 1.5 meters of deck space around the pool for easy movement and lounging.
3. Budget
Your budget dictates not only the size of your pool but also its materials, finishes, and maintenance costs. A larger pool requires more initial investment and ongoing expenses for heating, cleaning, and chemical treatments.
4. Users
- Families: Choose a design with a shallow area for children (around 1 meter deep).
- Adults: Deeper areas, up to 2.5 meters, allow for diving and more dynamic swimming.
- Mixed Users: A gradual slope from shallow to deep is versatile for all ages.
5. Local Regulations
Check building codes, zoning laws, and setback requirements in your area. These can affect pool size, placement, and even depth.

Standard Pool Sizes
- Small Pools (3×6 meters or less): Ideal for compact spaces, they are easy to maintain and cost-efficient. Popular for plunge or dip pools in urban settings.
- Medium Pools (4×8 meters): The most common size, offering enough space for family use while still manageable in terms of maintenance.
- Large Pools (5×10 meters or more): Perfect for larger properties, these pools accommodate lap swimming, diving, and entertaining.
Popular Pool Shapes and Their Impact on Size
The shape of your pool can influence its functionality and aesthetics:
- Rectangular Pools: Best for laps and creating a sleek, modern look. Standard sizes range from 4×8 meters to 5×12 meters.
- Oval Pools: Soft, elegant, and space-efficient for smaller yards.
- Kidney-Shaped Pools: Allow for natural separation of zones, like a shallow lounging area and a deeper swimming section.
- Freeform Pools: Customizable and ideal for blending into natural landscapes, but their irregular shape may reduce actual swimming space.
- L-Shaped Pools: Great for creating distinct areas for relaxation and activity, often around 10 meters in length with a smaller adjoining section.

Custom vs. Standard Pool Sizes
Standard Pool Sizes
Pre-designed options are cost-efficient and quick to install. Common sizes like 4×8 meters meet the needs of most families while being widely available.
Custom Pool Sizes
Tailored to your specific space and requirements, custom pools maximize usability and aesthetic appeal. For instance, if you have a narrow yard or an oddly shaped lot, a custom design ensures you can still enjoy a functional pool.
Pool Size Recommendations by Usage
- For Relaxation: Plunge pools around 3×6 meters provide a chic, low-maintenance solution.
- For Fitness: Lap pools of at least 10 meters long and 2.5 meters wide are ideal for uninterrupted swimming.
- For Families: A 4×8 meter pool with a shallow area is versatile for children and adults alike.
- For Entertaining: Larger pools (5×10 meters) create ample space for socializing, games, and gatherings.

Maintenance Considerations Based on Pool Size
Larger pools require more time and resources to maintain. Here’s what to consider.
- Cleaning: A bigger pool means more surface area to skim, vacuum, and scrub.
- Chemicals: Larger water volumes require proportionally more chlorine, pH stabilizers, and other chemicals.
• Energy Costs: Heating and circulating water in a large pool can be expensive. Solar heating or covers can help reduce costs.
Natural Pools by Oásis Biosistemas
Looking for something unique? Consider a natural pool by Oásis Biosistemas. These custom-designed pools offer a beautiful and eco-friendly alternative to traditional pools.
What Are Natural Pools?
Natural pools use plants, gravel, and biological filters to clean the water—no chemicals needed! The result is a stunning, natural-looking pool that blends seamlessly into your garden while being safe for swimming.
Custom Designs for Any Space
Oásis Biosistemas specializes in creating bespoke natural pools tailored to your property. Whether you have a small urban yard or expansive countryside, they’ll design a pool that suits your space and needs.

Benefits of Natural Pools
Natural pools come with a host of benefits that go far beyond aesthetics.
- Healthier for Swimmers: No chlorine or harsh chemicals means no skin irritation, red eyes, or unpleasant chemical odors. The water is naturally soft and gentle, even for those with sensitive skin or allergies.
- Eco-Friendly: Natural filtration systems rely on plants and biological processes, reducing your environmental impact while promoting biodiversity.
- Improved Air Quality: Plants around the pool improve air quality by absorbing CO2 and releasing oxygen, creating a fresher, healthier outdoor environment.
- Stress Reduction: The natural aesthetic and tranquil sound of water combined with surrounding greenery create a calming environment that reduces stress and promotes mental well-being.
- Temperature Regulation: Natural pools tend to stay cooler in summer and retain heat better in cooler months due to their eco-friendly design and natural materials.
- Increased Biodiversity: Natural pools become part of your garden’s ecosystem, attracting birds, insects, and other wildlife, enriching your outdoor space.
- Low Maintenance: While traditional pools require constant chemical balancing, natural pools maintain themselves with biological filtration, reducing time and effort.
- Longevity: Properly designed natural pools can last decades with minimal upkeep, making them a long-term investment.
- Customizable Beauty: They can be designed to look like a natural pond or have a sleek, modern aesthetic to fit any style.
Whether you prioritize health, sustainability, or simply want a pool that doubles as a breathtaking garden feature, a natural pool by Oásis Biosistemas offers unparalleled benefits for your lifestyle and well-being.
For those seeking a unique touch, Oásis Biosistemas brings your vision of a natural pool to life with eco-friendly and fully customizable solutions. Whether you’re dreaming of a serene pond-like retreat or a modern natural swimming area, they’ve got you covered.

Conclusion
Choosing the right pool size isn’t rocket science, but it does require a bit of planning. If you’ve got a smaller space, a 3×6 meter pool might be all you need to cool off and relax. Got a bigger yard and a big family? Go for a 5×10 meter pool and enjoy the extra space for swimming and splashing around.
At the end of the day, it’s all about what works for you. Think about your space, who’ll use the pool, and how much time you want to spend maintaining it. A pool isn’t just a hole filled with water—it’s an investment in your happiness. Make sure it’s one that suits your needs perfectly!
FAQ
What are standard pool sizes?
Common sizes are 3x6m (small), 4x8m (medium), and 5x10m (large), depending on space and usage.
Is a 16x32 pool small?
No, it’s considered a medium-sized pool in the U.S. In Portugal, a 5x10m pool is spacious.
Are pools 25 meters or 25 yards?
It depends. Olympic pools are 25 or 50 meters, while many recreational pools in the U.S. are 25 yards (22.86m).
Is a 12x24 pool a good size?
Yes, it’s a compact but functional size for families, offering enough space for relaxation and play while being easy to maintain.
How much should I budget for an in-ground pool?
Costs range from €15,000 to €50,000, depending on size, materials, and additional features like heating or lighting.
How to maintain a pool for beginners?
- Run the filtration system for 6-8 hours daily.
- Check and balance pH (7.2-7.6) weekly.
- Use chlorine or a natural filtration system to keep water clean.
- Skim debris and clean regularly.
Pool permits and regulations.
In Portugal, check with your local municipality (Câmara Municipal) for construction permits, safety rules, and minimum distance regulations. Small pools may be exempt from permits.