What Size Trampoline Should I Buy? NEW Trampoline Size Guide
✍️ Gary and the Trampolines Ireland Team — Ireland's leading trampoline experts!
If you're thinking about buying a new trampoline, whether you're totally new to trampolines, or you've owned a few and you're just looking for some extra tips, our Trampoline Size Guide below should help you to select the correct trampoline size for you.
As a general rule, you should buy a trampoline that will fit in your garden, with 1 to 2 metres clearance around the perimeter of the trampoline. The size that you buy will be dictated by how many kids you expect to use the trampoline, their ages, and the size of your garden.
Trampoline Size Chart - Matching Age & Size
AGE OF KID(S) |
SIZE RECOMMENDATION |
| 1 Year Old | Mini Trampoline |
| 2 Year Old | Mini Trampoline |
| 3 Year Old | Mini Trampoline |
| 4 Year Old | Mini Trampoline to 6ft Trampoline |
| 5 Year Old | 6ft Trampoline to 12ft Trampoline |
| 6 Year Old | 6ft Trampoline to 12ft Trampoline |
| 7 Year Old | 6ft Trampoline to 12ft Trampoline |
| 8 Year Old | 9ft Trampoline to 14ft Trampoline |
| 9 Year Old | 9ft Trampoline to 14ft Trampoline |
| 10 Year Old | 9ft Trampoline to 14ft Trampoline |
| 11 Year Old | 12ft Trampoline to 14ft Trampoline+ |
| 12 Year Old | 12ft Trampoline to 14ft Trampoline+ |
| 13 Year Old | 12ft Trampoline to 14ft Trampoline+ |
| 14 Year Old | 12ft Trampoline to 14ft Trampoline+ |
| 15 Year Old | 12ft Trampoline to 14ft Trampoline+ |
| 16 Year Old | 12ft Trampoline to 14ft Trampoline+ |

Deep Dive: Choosing The Best Size Trampoline For You
We would stress that the chart above is only a simple guide, and other key factors that determine the best size trampoline for your kids in your garden are as follows:
1. How Big is Your Garden?
Not only how big is your garden, but how big is the space in your garden that you have allocated to the new trampoline. For example, a 14ft trampoline is not going to work very well if you only have room for a ten foot model. If space is tight, start with our small garden trampolines.
2. What Shape Is Your Garden?
Closely connected to the size of your garden is the shape of your garden. While your garden may not easily fit an 11ft round model, it might easily fit an 11x7ft rectangular or an 8x11ft oval model, including the recommended clearance.
3. Adequate Clearance
Additionally, it's important to remember that most trampoline manufacturers recommend allowing 1 to 2 metres clearance around the trampoline to prevent collisions with fences, trees and branches, garden sheds, oil tanks and other not so easily moved objects that you find in most gardens.
If clearance is the problem rather than floor space, an inground trampoline sits low to the lawn and takes the height out of the equation.
4. How Many Children Will Use The Trampoline?
Most manufacturers will recommend one user on the trampoline at a time, and while it is extremely important to adhere to the manufacturer's safety guidelines, you also have to be realistic and consider how many people will typically want to use the trampoline.
For example, if you expect your child to use the trampoline most of the time by him or herself, then perhaps you would consider one of the more compact models.
But if you expect that your child is more likely to use the trampoline with one or two siblings or friends, then a larger model is going to be more suitable.
5. How Old Are Your Children?
On the whole, older and larger kids will appreciate a larger trampoline, but it's also important to have regard to the other factors mentioned above.
6. Family Size
Everything else being equal, the more children that you have the larger a trampoline that you will require, as it's more likely that they will want to use the trampoline together, and perhaps together and with friends.
14ft trampolines are great for larger families and also work well when kids have play dates with their friends. They will also grow with your children and have plenty of room if you expand your family.
7. Budget
In deciding which size of trampoline will be right for you, it's also important to consider your budget. While size will affect the cost, it isn't the only factor that will affect trampoline price.
Other factors that will affect price include:
- which trampoline brand you choose — see BERG or Springfree,
- whether you prefer the Favorit (standard), Champion (premium) or Elite range,
- what sort of springs and safety enclosure you want, and many others.

What Is The Most Popular Size of Trampoline?
Initially, you might be interested to know which trampoline sizes are the most popular, as that information may help you to select the trampoline size most appropriate for you.
As a general rule, parents with younger children will buy a 9ft or 11ft trampoline, while parents with older kids and/or larger gardens will buy a 12.5ft or 14ft trampoline. A lot depends on garden size, budget, and other factors.
It must be said that the range of trampoline sizes, brands, styles and budgets is extremely diverse and there will be variations available to suit all preferences.
We recommend making a checklist of exactly what you need. Although observing which models are the most popular can give you some sort of a gauge, you should make your selection based on your own personal factors.
What Trampoline Sizes Are Available?
Round Trampoline Sizes
Round trampolines typically come in the following sizes:
| ROUND TRAMPOLINES | SIZE IN FEET | SIZE IN CM |
| 4.6ft | 140 cm | |
| 5ft | 153 cm | |
| 6ft | 183 cm | |
| 6.5ft | 200 cm | |
| 8ft | 244 cm | |
| 8.3ft | 253 cm | |
| 9ft | 270 cm | |
| 10ft | 305 cm | |
| 11ft | 340 cm | |
| 12ft | 366 cm | |
| 12.5ft | 380 cm | |
| 13ft | 396 cm | |
| 14ft | 430 cm |
Rectangular Trampoline Sizes
Rectangular trampolines are often available in the sizes below:
| RECTANGULAR TRAMPOLINES | SIZE IN FEET | SIZE IN CM |
| 5 x 7ft | 153 x 214 cm | |
| 6 x 9ft | 198 x 294 cm | |
| 7 x 10ft | 214 x 305 cm | |
| 7 x 12ft | 214 x 366 cm | |
| 8 x 12ft | 244 x 366 cm | |
| 8 x 14ft | 244 x 427 cm | |
| 9 x 6ft | 280 x 190 cm | |
| 9 x 12ft | 294 x 366 cm | |
| 9 x 15ft | 275 x 458 cm | |
| 10 x 17ft | 305 x 519 cm | |
| 11 x 7ft | 330 x 220 cm | |
| 12 x 13ft | 366 x 414 cm | |
| 13 x 8ft | 410 x 250 cm | |
| 16.4 x 9.10ft | 500 x 300 cm |
Oval Trampoline Sizes
Popular oval trampoline sizes are as follows:
| OVAL TRAMPOLINES | SIZE IN FEET | SIZE IN CM |
| 8 x 11ft | 240 x 340 cm | |
| 8.2 x 11.6ft | 250 x 350 cm | |
| 8 x 13ft | 240 x 400 cm | |
| 10.2 x 15.5ft | 310 x 470 cm | |
| 11.4 x 17ft | 345 x 520 cm |
Square Trampoline Sizes
Our favourite square trampoline sizes are:
| SQUARE TRAMPOLINES | SIZE IN FEET | SIZE IN CM |
| 6 x 6ft | 198 x 198 cm | |
| 9 x 9ft | 294 x 294 cm | |
| 11 x 11ft | 340 x 340 cm | |
| 12 x 12ft | 366 x 366 cm |
What's the best size trampoline for you?
| TRAMPOLINE SIZE | BEST FOR WHO? |
| 4-6ft Trampolines | Young children, small gardens and indoors for kids who love to bounce |
| 6-8ft Trampolines | More room and a better bounce as kids get older. Perfect for small gardens and patios. |
| 9ft, 10ft, 11ft | Suited to medium size gardens with more room for jumping. |
| 12.5 to 14ft | Ideal for large gardens and for older kids who want room to bounce, play games and relax. |
| 14ft+ | Mighty bouncy for active kids. Large garden essential. |
How Much Does Each Trampoline Size Cost?
The size of the trampoline you choose will influence cost. Other factors include:
- trampoline brand,
- quality rating — springs, padding, jump mat and safety net,
- model with or without an enclosure,
- the accessories you select, e.g. anchors, ladder, cover and basketball hoop,
- whether you want an above ground, inground or flatground model,
- installation cost, especially with inground models.
Deciding Which Trampoline to Buy For Your Kids Based on Their Age
What trampoline for 1 to 3 year olds?
Under 3s — When it comes to toddlers, you need to ensure they have a safe and sturdy trampoline where they can bounce to their heart's content. For this age group, it's appropriate to look at a mini trampoline, often referred to as a toddler trampoline.
This smaller size trampoline still offers them plenty of room for a bounce but isn't too overwhelming. It is also less likely for them to incur an injury on a toddler trampoline.
What trampoline for a 4 year old?
4-year-olds — As your child reaches this age bracket, they might be ready to move onto a slightly bigger trampoline. While a mini trampoline will still be sufficient, they might enjoy moving on to a 4.5-6ft trampoline.
This will give them more room to bounce around without coming into harm's way.

What trampoline for 5 and 6 year olds?
5 and 6-year-olds — If your child is in the 5-6 age bracket, consider trampolines in the 6-10ft range so they are age-appropriate.
If they are nearer to 5 then a 6ft might be more appropriate, but for those heading for 6, a 10ft to 12ft trampoline will provide hours of fun.
What trampoline for 7 and 8 year olds?
7 and 8-year-olds — For children around 7-8 years old, we recommend an 8ft to 12ft trampoline for your garden. This size is not only age appropriate but gives them enough space to bounce safely as well as try the odd trick or two.
What trampoline for ages 9-10?
9 and 10-year-olds — As children reach a slightly older age, we would suggest looking at trampolines sized between 10ft and 14ft. This size will hold their weight safely and give them plenty of room to bounce around.
What trampoline for ages 11-13?
11-13-year-olds — Reaching their teens, we would recommend a trampoline sized between 12ft and 17ft. With plenty of room, this size will ensure they can jump around safely.
What trampoline for 14+ year olds?
14 year olds and over — After the age of 14, we recommend going for a trampoline sized 14ft and above. These larger trampolines are built to hold a larger weight and will have enough space for those who are getting more serious about gymnastics.
Still not sure what size you need?
Send us your garden dimensions and we'll tell you what fits. Call 01 960 1641 in the Republic or 028 3756 8930 in Northern Ireland, or browse the full BERG trampoline range and Springfree trampolines — all held in our own warehouse in Ireland with free delivery on orders over €300.