What Size Trampoline do I Need? – Trampoline Size Guide 2023

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One of the most common questions we get asked is what size of Trampoline should I buy? Often it’s because you’re not sure what size of trampoline would best suit your child. So, Here’s our ultimate trampoline size guide.

You should buy a Trampoline that will fit in your garden or jumping area, that would be ideally free from any nearby objects or obstacles that could cause injury to any child using the trampoline. It should be age suitable for the children using the trampoline.

The Trampoline Size Guide & Chart

Toddler / Mini Trampoline
Toddler / Mini Trampoline
Toddler / Mini Trampoline
Mini Trampoline / 4.5ft Trampoline / 6ft Trampoline
6ft Trampoline – 8ft Trampoline
6ft Trampoline – 10ft Trampoline
8ft Trampoline – 10ft Trampoline
10ft Trampoline – 14ft Trampoline
12ft Trampoline – 14ft Trampoline
12ft Trampoline – 16ft Trampoline
12ft Trampoline – 16ft Trampoline
12ft Trampoline +
14ft Trampoline+
14ft Trampoline +
14ft Trampoline +
You need to measure your space correctly and ensure that you supervise your child at all times. We are only a guide and ask all visitors to read the manufacturing guidelines of each product to determine suitability. Let’s find the best trampoline size for your kids.

More In-depth Answer To What Trampoline Should I Get?

Of course, there is more to this answer than the snippet above. In order to answer this question more in-depth, there are a couple of important questions that we need to ask you.

How many children do you intend to let use the trampoline?

So you need to ask yourself, who is going to be using the trampoline and what age are the children who are going to be using the trampoline? Now keep that in mind as we have a look at our second question.

What size is the garden you’re going to be putting the trampoline in?

It’s not unusual to want the biggest trampoline you can afford but you need to take a step back and think about where the trampoline is going to be put, do you have enough free space for the trampoline to be placed? and is the area free from any objects? – Making a safe space for a trampoline is really important.

So why am I asking those questions when you’ve come to search for the answer, well it’s because the answer can vary and these are the main determining factors. So let’s dive right into it.

What’s The Most Popular Size of Trampoline?

Firstly you may be wondering, what is the most popular size of a trampoline and why it’s the most popular size of the trampoline?

The Most popular size of Trampoline is the 8ft trampoline with enclosure. It’s currently the most sought after size and the reason why is that it is suitable for children from as young as 4 years old and can usually support up to 75 KG which is 11 stone, 8 lbs. So this can easily support from 4 years old to 12 years old easily.

Trampolines are available for all children, they are suitable from as young as toddlers and babies right up to teenagers and adults. The average size of a trampoline is 12ft, however, this is not the most popular size of the trampoline.

It’s the most popular size as it’s usually the age where kids become more active and you like to see them grow in a safe environment. Trampolines have many great health benefits for children, they help develop coordination, balance and encourage cognitive speech learning.

What Trampoline Sizes Are Available?

what sizes of trampolines are avaialble

So, what trampolines are available to buy? While the most popular size is the 8ft trampoline there are many other sizes of Trampolines available on the market today. They range from Toddler and Baby trampolines right up to Adult sizes trampolines. Although there are many, they are not all made to be suitable for all ages. Remember the two questions we asked before?

  • 5.5 ft – 6 ft Trampoline: Perfect for young children in small gardens. Gives a small yet fun bounce for small kids.
  • 8ft Trampoline: Perfect for young children (4 – 12 years old) in small gardens but room for growth. It provides a bigger bounce than a smaller sized trampoline.
  • 10ft – 12ft Trampoline: Good choice for medium-sized gardens that provides a great bounce, a safe model for a wide range of ages from 6 – 16 Years old.
  • 14ft – 16ft Trampoline: You need a large flat garden for this sized trampoline, provides an extreme bounce and suitable for older children 9 – 16 years old and adults. It usually has a 120 – 150 KG weight limit.

What Size Trampoline Should I Buy?

So, you’ve learned the sizes of trampolines available but you’re still wondering, what trampoline is the best size that I should buy? So you put together the two questions I previously asked,

How big is your garden? and How many children are going to be using the trampoline and what is their age?

I’ve provided the guide below that lists all trampoline sizes from 6ft through to above 15ft trampolines. It lists the ages suitable for each trampoline size, the average or often listed weight capacity and whether a trampoline is enclosure is a must-have purchase to go along with your trampoline.

As there’s a number of choices for which trampoline is suitable to which age let’s expand on this.

What trampoline size for a 1 year old?

If you’re looking for a trampoline for a 1 year old then you should be considering a toddler trampoline. It is suitable for ages 1-3 years old. Ensure that the trampoline has a low clearance from the floor to the trampoline mat, a toddler trampoline with a handle is a must and plenty of padding.

What trampoline for a 3 year old?

At the limit of a toddler trampoline age, a 3 year old has more balance and coordination than a 1 year old so you should be considering a mini kids trampoline instead of a toddler trampoline as this will last longer as they grow. Make sure you read about safety features.

What trampoline for a 4 year old?

A trampoline for a 4 year old is quite tricky, they are at the age of where a mini kids trampoline or a 6ft trampoline would be an ideal fit providing you have space and a safe area to put the trampoline up.

What trampoline for a 5 year old?

For a 5-year-old you should be considering a trampoline that has an enclosure net and safety padding all around. A 6ft mini kids trampoline or an 8ft trampoline would be an ideal choice of trampoline size.

What trampoline for a 6 year old?

If you’re looking for a trampoline for a 6-year-old then you should be considering an 8ft trampoline or a 10ft trampoline if you have enough space in the garden to accommodate a 10ft trampoline.

What trampoline for a 7 year old?

As kids grow they gain confidence and improve balance and coordination so depending on space you should be considering a 10ft or a 12ft trampoline. Ensure you read all the safety features as your child will become more adventurous as they grow older.

What trampoline for an 8 year old?

An ideal size trampoline for an 8 year old is between a 10ft trampoline and a 14ft trampoline. Make sure you have enough space in the area you plan to put the trampoline so it’s free from any obstacles or objects which could cause injury.

What trampoline for a 9 year old?

If you have a 9 year old and you’re looking for the perfect trampoline then you should consider a 12ft trampoline right up to the largest trampoline you can fit in your garden. A 9-year-old can jump on an 8ft trampoline or a 10ft trampoline but it may limit the available space.

What trampoline for a 10 year old?

The best size trampoline for a 10-year-old would be between a 12ft trampoline and a 14 ft trampoline. This gives them plenty of space when bouncing as you want enough distance from the centre of the trampoline to the springs.

What Trampoline for a 11 year old?

As children grow you will want to get the largest trampoline that you can fit into your garden. The reason for this is that it can be used for years without you having to upgrade to a larger size. For an 11-Year-Old you should consider a 12ft trampoline +. A 14 ft or 16 ft trampoline would be suitable also. It just depends on the size of the garden.

How Much Does Each Trampoline Size Cost?

Now you’re more knowledgeable about the sizes of trampolines that are available to buy, prices can vary a lot as-well. With that said, however, there is usually always a trampoline available for your budget.

Trampoline prices can vary

Yes, that’s right, trampolines are not all made the same way to the same specifications and it’s not unusual to have smaller 8ft Trampolines by premiums brands costing more than a cheap 12ft Trampoline.

Why does the price of trampolines vary?

They vary usually because of the work that has been put in to produce the trampoline. I’ve written a list of factors that affect the price of a trampoline:

  • The research that went into the trampoline
  • The testing and ‘making safe’ strategy
  • The materials used for the frame, padding and enclosure net
  • Where the trampoline was produced
  • The brand name of the team behind the trampoline
  • The Max weight capacity of the trampoline

So, as you can see there are many different factors that go into determining the trampoline price. We have however put together a quick guide to assist you in helping you decide how much you should budget for your trampoline.

  • 6ft & < Trampoline: £60 – £120
  • 8ft Trampoline: £100 – £300
  • 10ft Trampoline: £140 – £400
  • 12ft Trampoline: £180 – £500
  • 14ft Trampoline: £250 – £700
  • 16ft Trampoline: £300 – £1000+

Prices of trampolines are set on what research, development, and materials have been used to create the trampoline. So all trampolines are not equal.

How Do We Test Trampolines?

When you’re searching for a trampoline to buy or if you’ve been on a few pages of our website then most likely you have seen the safety-approved information for a number of our trampolines. I try to include it on every page where a trampoline is mentioned.

What are the trampoline safety certificates?

kids trampoline safety certificates

So firstly, any trampolines whether it’s a small toddler trampoline or it’s a larger 14ft trampoline with enclosure, ladder and anchor kit they all have to pass certain safety tests in order for them to be sold within the United Kingdom and European Union.

The testing certificates that can be assigned are:

  • EN71 Part 14 (Usually quoted as EN71)
  • CE testing
  • GS
  • TUV

Each certificate has a set of inspection, auditing and certification criteria that has to be met to be approved for sale within the UK. That’s not to say that all trampolines that achieve these certificates are the same standard but they all meet the minimum level required for sale within the European Union.

Why the safety certification for trampolines?

These certifications are to protect you the consumer and your family. They ensure the materials used are up to a suitable standard, that the trampoline is fit for purpose and the weight capacity has been tested thoroughly. Some trampoline models are tested to one or two safety certificates or to all of them. Most being EN71 tested, which is the most popular safety criteria trampolines are approved against.

I plan to go into more detail on each of the safety certifications at a later date.

How Tall Is A Trampoline?

A trampoline is as tall as it needs to be, that’s tall enough to protect the user or child from coming to any injuries or accidents by ensuring that the trampoline and trampoline enclosure is at an EN-71 approved height and is suitable for the age range it’s advertised for.

What does this mean? Well, it varies per trampoline size. For instance, here are some real-life examples.

The Kanga 8ft Trampoline, one of the most popular trampolines in the United Kingdom is 245 cm tall.

However, every trampoline is not the same height.

If we look at the Zero Gravity 12ft Ultima 4 Trampoline then this comes in at 270 cm tall.

So, the answer is it varies on what size of trampoline you are looking for. I’ve listed the average sizes of trampolines heights based on diameter.

  • 6ft Trampoline: The height is 200 cm
  • 8ft Trampoline: The height is 230 cm
  • 10ft Trampoline: The height is 255 cm
  • 12ft Trampoline: The height is 270 cm
  • 14ft Trampoline: The height is 275 cm

What Is The Spring Count of A Trampoline?

The spring count, although may not seem related to the size of trampoline it’s one of the most important factors that help you decide whether the trampoline is suitable along with the age guide for trampolines.

trampoline spring count

Why does the spring count matter?

The spring count and the length of springs allow the trampoline to produce an optimum bounce for the age of the user. An example of this would be letting a 5-year-old child use a 14ft trampoline. Here you would see that not only is there too much space for the child and the safety distance to the padding is too much. There will be little to no bounce available to the child.

Why would there be no bounce?

So, you’ve learned the sizes of trampolines available but you’re still wondering, what size of the trampoline is the best size that I should buy? So you put together the two questions I previously asked,

Choosing The Correct Trampoline Size

Put all the information learned and apply it when you’re shopping for the best trampoline. It will help immensely and aid as a deciding factor when you pick up either your first trampoline or your perfect trampoline.

Choosing the wrong size of a trampoline can cause many problems and that’s a mistake you will want to avoid. Here’s a step by step guide:

Know who is going to be using the trampoline

Most importantly, who is going to be using the trampoline, if you have only one little one that’s aged five years old then the choice is easy enough, and there are many choices.


If you have 3 kids in the household, one is 6 years old, one is 10 years old and the last child is 14 years old, then the decision on which trampoline would be best becomes significantly harder. You want all children to be safe when using the trampoline and all of them to have equal fun.

Know the ages of the children using the trampoline

Check the manufacturer’s website and our size guide to ensure you have covered all the trampoline specifications, will it hold the weight I intend to put on the trampoline? Is the trampoline suitable for my children?

These are the questions you need to answer.

Check the size of your garden before purchasing a trampoline

You won’t believe how many people go off and purchase a brand new trampoline, picking up a 12ft trampoline and trying to fit it into a small garden not realising how big it’s going to be. Know the size of the trampoline and measure the diameter in the garden.

#1. Grab a measuring tape – measure a length of string equal to the diameter of the trampoline you intend to buy.

#2. Tie the string around the pencil, tightly. Use a drawing pin to secure it if it keeps sliding off the top.

#3. Go out into the garden with your new handmade trampoline measure.

#4. Locate the area you would like to place the trampoline, ensure no stones or concrete are present and it’s a clear area of soft grass.

#5. Place the pencil in the centre as much as possible.

#6 Pull the string taut and mark out the area by walking around with the string.

Is there enough room? If so then yes the trampoline will fit into the garden.

What’s the diameter of a Trampoline?

Diameter’s of trampolines vary in sizes depending on the total size of trampoline you are buying. Here’s the quick list:

  • 6ft Trampoline: It’s 200 cm in Diameter
  • 8ft Trampoline: It’s 243 cm in Diameter
  • 10ft Trampoline: It’s 305 cm in Diameter
  • 12ft Trampoline: It’s 366 cm in Diameter
  • 14ft Trampoline: It’s 427 cm in Diameter

I hope this proves useful in helping you choose the correct trampoline size for your family and answers the questions, What size of the trampoline should I get. If you have any comments then please leave them below.

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6 thoughts on “What Size Trampoline do I Need? – Trampoline Size Guide 2023”

  1. When measuring out the area needed for a trampoline is it not radius you should use and not the diameter when tying the string to the pencil? This allows you to find the centre point. If you use the diameter the area measured out will be twice as big.

    • You’re absolutely right Mary. It would be the radius to get the exact size. We put diameter although to ensure that there was plenty of space to get on and off the trampoline aswell as being far enough away from any objects like walls/fences/tree’s/boulders. Just really anything that could cause harm. Have you got a small garden Mary?

      • It’s not tiny but not huge either. We are in a housing estate, so it is a city garden. We have two children (4 and 7) and I’m trying to decide between an 11 foot or a 12 and half foot Berg. I just don’t want them to outgrow it too fast. A 12 and half foot would take up less than half of the garden.

        • I would go for the biggest one you can fit in Mary. Just for the simple reason that it will last for years to come as the children grow.

          There’s not too much difference between an 11 and a 12 really. While the 4 year old will probably find it hard to bounce on a 12 foot they really will grow into it in no time. Your 7 year old will have a great time on a 12 foot trampoline.

      • It’s not a tiny garden but not huge either. It’s a city garden. We have two children (4 and 7). We are trying to decide between an 11 foot or 12 and half foot trampoline.


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