The right dimensions for your hot tub: what you should pay attention to

Choosing a hot tub is fun. Until you see the list of dimensions. Suddenly it feels like you're not dealing with relaxing bubbles anymore, but with math. What does "180 cm diameter" actually mean in practice? How many people can fit in it without elbowing each other? And how do you know if that round wooden tub won't take over your entire patio?

You choose a hot tub with your heart, but you choose the dimensions with your head. Fortunately, you don't have to puzzle over it alone. In this blog, we'll take you through all the questions you might ask yourself – and answer them in understandable language. That way, you'll know exactly which size hot tub fits your garden, your plans, and your relaxation.

Why the dimensions of your hot tub are so important

A hot tub is not a piece of furniture you move every season. It's an investment in comfort and relaxation. And to get the most out of it (oops, we'll avoid that word!), the dimensions must be right. Not just for your body, but also for your garden, your family, your circle of friends – and how you envision relaxation.

Too small means: cramped, elbows touching, and little room to relax. Too big means: longer to heat up, more wood, more water – and perhaps you'll always be sitting alone in that giant tub.

What determines the right size for your hot tub?

1. The number of people who regularly use the hot tub

How many people will be in it at the same time on average? Think about daily use, but also weekends. Do you usually sit in it as a couple, or do you like to invite neighbors, friends, or in-laws?
A compact hot tub for 2 to 4 people is ideal for couples or small households. A larger model (5 to 8 people) offers comfort for families or those who like to share. And then there are the real party tubs – for when you like to invite half the street party.

2. The available space in your garden or on your patio

• Grab the measuring tape, because measuring is knowing. Consider:
  enough space around the tub (at least 60 cm, preferably more)
  
• access to the tub for cleaning and maintenance
  
• a flat surface that can support the weight (when filled, a hot tub can weigh over 1000 kg)
  

Tip: use a garden hose or ribbon to outline the size in the garden. This will give you an immediate sense of scale.

3. Your body length and comfort preferences

You're not sitting in a bucket – you want to be able to lean, stretch, float. Are you a bit taller? Then a deeper tub is more pleasant. Do you have back problems? Then a comfortable seating depth is important. And also: do you want to sit with your legs stretched out, or snugly opposite each other?

Pay special attention to the seating depth (not just the height of the tub!) and how the seats are shaped. Also ask about benches or raised platforms for children or smaller users.

The most popular hot tub sizes (and why)

• Ø 150 cm (2–3 people): Compact, ideal for small gardens or couples. Heats up quickly and requires little maintenance.
  
• Ø 180 cm (4–5 people): Room for the family or a few guests, without the tub becoming too bulky.
  
• Ø 200–220 cm (6–8 people): For those who really enjoy company. Think of long evenings with friends or family.
  
• Custom-made: Yes, that's also possible. If you have specific wishes, we'll think along with you.
  

Is a larger hot tub more work?

Not necessarily. A larger hot tub means more water, that's true. And therefore a longer heating time and more volume to keep clean. But with the right accessories (such as a thermodeck, filter system, a solar outdoor shower and good maintenance) it's all perfectly manageable.

In fact, many people experience the larger size as extra comfortable. More room to move, stretch your legs, or just not stick to each other on warm days.

So it mainly comes down to what you find important: speed and compactness, or comfort and space.

Which shape suits your needs?

Round is the classic. But there are also oval or extra deep variants. The shape influences the spatial experience. Round feels cozy, intimate. Oval often offers a bit more legroom or a more luxurious look. And deep... well, that's just wonderful for those who really want to immerse themselves.

Look carefully at your garden: where will the tub go? How does the space flow? And how will you look at the setup from your patio or kitchen window?

Practical considerations when choosing dimensions

Consider the following:

• Is there room for steps? Don't forget to include the stairs or step.
  
• Where will the stove go? On the side? Then there must be room for that too.
  
• Do you want lighting or accessories? That can also influence the placement.
  
• What about privacy? Can a screen or hedge be placed around it?
  

You see: it's not just about diameter and depth. It's about the experience around it.

Extra comfort: seating, backrests, and depth

A comfortable hot tub is not just about dimensions, but also about the design of the seating. A flat bench is not necessarily comfortable. Slightly curved backrests, a raised seat, or a footplate can make all the difference.

Do you have children? Then a shallower seating area is ideal. Do you want to sink up to your shoulders? Then choose a deeper tub. Let us advise you – and if necessary, try out a model in the showroom.

Material choice also influences the size

A wooden hot tub often has thicker walls than plastic variants. This means that the outer dimension is larger than the seating dimension. This difference is important when measuring the space. So always ask for the net seating area. Are you choosing insulation? Then take that into account when considering the dimensions.

Does it also fit your style?

Big is beautiful. But too big can sometimes look out of place. A hot tub should fit in with the rest of your garden. With the atmosphere, the planting, the patio.

Sometimes a smaller model is better integrated and creates a harmonious whole. A large tub with a wooden surround, on the other hand, can be a real eye-catcher. So think not only practically, but also aesthetically.

Need help choosing your hot tub?

At Happy Timber, we are happy to help you. Not with sales pitches, but with practical insights, honest answers, and experience in custom work.

• Would you like personal advice? Plan a visit to our showroom and discuss your wishes with an advisor.
  
• Ready to take the next step? Request a quote today.
  
• Prefer to get a feel for the atmosphere first? View examples and experiences on our blog page.

Frequently asked questions about hot tub dimensions

How much space should I leave around my hot tub?

A minimum of 60 cm all around is recommended, so you can easily get in and clean it.

What is the ideal size for a family with children?

A diameter of 180–200 cm is usually perfect: not too big, but spacious enough for 4–5 people.

I have limited space. Can I still install a hot tub?

Yes, compact models are available from 150 cm. These fit even in a city garden or on a large balcony.

What is the ideal depth for comfortable sitting?

Between 80 and 100 cm water depth is comfortable for most people. This way, you're submerged without slouching.

What if I'm torn between two sizes?

Consider who will truly use it most often. If in doubt: come for a test sit or ask for advice via our selection guide.