The 10ft vs 12ft decision is the one we get asked about most. Both sizes suit children from around 8 upwards, both fit in a medium-to-large suburban garden, and the price gap isn't enormous. But they're not the same trampoline, and the difference matters enough to think it through properly.
Our view: if your garden fits a 12ft, buy the 12ft. Here's why.
Size and space comparison
Like all trampolines, the headline size refers to the outer frame — the actual jump mat is smaller:
- 10ft frame: approximately 7ft jump mat
- 12ft frame: approximately 8.5ft jump mat
That 1.5ft difference in mat diameter gives the 12ft around 47% more bounce area than the 10ft. It's a meaningful step up, not a marginal one.
The garden clearance requirements:
- 10ft trampoline: needs roughly 13-15ft of clear space in every direction
- 12ft trampoline: needs roughly 15-17ft of clear space in every direction
So if your usable garden space is 14ft across, a 10ft fits with comfortable clearance. If you have 17ft, you have a genuine choice. The difference in space required is 2-3ft on each side — smaller than it might sound in a typical garden, but not nothing. Measure before you decide.
Who suits a 10ft?
Children from around 8 upwards, gardens in the medium range, and households where one child is the primary user. Our 10ft trampoline range is consistently popular because it works well for the majority of families — fits in most post-war suburban gardens, handles a single child well, and remains appropriate well into secondary school.
If two siblings want to share it, a 10ft is manageable but noticeably more crowded than a 12ft. Two children jumping simultaneously have considerably less space than on the larger model. For families where multiple children will use it at the same time regularly, this is worth factoring in.
The 10ft weight limit typically runs to 100-125kg. For most children through primary and early secondary school, this is fine. It starts to feel limiting if older teenagers (who might be 50-70kg individually) want to share the trampoline.
Who suits a 12ft?
Anyone who fits a 10ft in their garden but has the space for a 12ft — and the 12ft is particularly compelling for siblings, older children, and families planning to use the trampoline for five or more years as children grow.
Our 12ft trampoline range is the right size for families with two or more children sharing, for children aged 10 and up who want room to really jump, and for households where teenagers will be the primary users. The bounce on a 12ft is noticeably different from a 10ft — there's simply more mat surface, which translates directly to more jumping room and the ability to use more of the trampoline when bouncing.
Weight limits on 12ft models typically go up to 125-150kg, which is more accommodating of multiple users or heavier teenagers. If you're buying something intended to last into the teenage years, the higher weight limit is a practical consideration.
Weight limits
The weight limit difference between 10ft and 12ft models is practically significant if your children are older or if adults want to use the trampoline.
- 10ft: typically 100-125kg maximum user weight
- 12ft: typically 125-150kg maximum user weight
These limits matter in two situations. First, if a teenager weighing 60kg wants to share the trampoline with a sibling: on a 10ft with a 100kg limit, there's only 40kg of headroom for the second person. Second, if an adult (parent, older sibling) plans to use it: many adults exceed the typical 10ft weight limit.
If your household includes teenagers or adults who'll realistically use the trampoline, the 12ft's higher weight capacity is worth having.
Which one would we recommend?
The 12ft, if the garden fits it. The bounce space difference is real — noticeably more room to move — and the weight capacity advantage matters more than people initially expect as children grow. The price difference between comparable 10ft and 12ft models is real but not usually dramatic.
The 10ft is the right answer when the garden genuinely can't accommodate a 12ft. It's a capable and popular trampoline, but if both fit, the 12ft is the better long-term buy.
One practical note: garden sizes on paper often look large enough for a 12ft, but the actual available space once you account for the shed, the patio, planted areas, and fence clearances can be tighter than expected. Measure the specific space you have, not the garden overall, before deciding.
If you'd like the full space and age breakdown for every size we sell, our trampoline size guide covers both clearance requirements and age suitability in one place.
What the price difference looks like
A 12ft trampoline costs more than a comparable 10ft. That's expected — more frame steel, more springs, more mat material, more enclosure height. The gap between models at similar quality levels is usually meaningful but not dramatic. We'd describe it as the difference between a coffee table and a dining table: proportionate to the size increase, not a random premium.
Whether that price difference is worth it depends on how you frame the question. If you're thinking about cost-per-year of use, a 12ft bought for children who are 8-9 today and will be teenagers in five years is likely to remain suitable longer than a 10ft purchased in the same circumstances. The 10ft becomes limiting for teenagers; the 12ft doesn't.
If you're buying for a 5-year-old and the 10ft fits the garden and the age perfectly, paying extra for a 12ft is harder to justify. But if you're in the 8-12 age bracket and the garden fits both sizes, the additional outlay for the 12ft is usually recovered in the extra years of relevant use.
Frequently asked questions
Is a 12ft trampoline much harder to assemble than a 10ft?
Marginally. More springs, heavier frame sections — but the process is the same and the assembly time difference is modest. Most people take two to three hours with two adults on a 10ft; a 12ft might add half an hour. The extra spring count is where most of that additional time goes.
Can one child use a 12ft trampoline on their own?
Absolutely. A 12ft trampoline with one child jumping is simply a 12ft trampoline — having more space doesn't mean you need to fill it. A single child will actually bounce better on a larger mat because they have more room to work with. The 12ft isn't just for multi-child households.
Which size is more popular?
The 10ft sells in higher volumes because it fits in more gardens and is often the default choice for families who aren't sure whether a 12ft will fit. Once people measure properly and find both sizes work, the 12ft is frequently the choice. We sell more 10fts simply because more gardens can accommodate them.
Does a bigger trampoline need more maintenance?
The maintenance tasks are the same — spring checks, mat inspection, net condition, frame joints. A 12ft has more springs to check than a 10ft, which takes a little more time. On balance, the difference in maintenance effort is minimal. What matters more than size is keeping on top of it regularly rather than leaving issues to develop over multiple seasons.