Trampolines are safe when used properly. That is not a disclaimer — it is the conclusion from looking at injury data honestly. The vast majority of trampoline injuries come from misuse rather than equipment failure: multiple children jumping at once, children landing on each other, people falling off mats without enclosure nets. The equipment is not the problem in most cases. How the equipment is used is.
This guide covers the specific safety rules that actually make a difference — not the generic "always supervise children" advice you will find everywhere, but the specific things that reduce risk meaningfully.
The one-jumper rule
The single most important safety rule for trampolines is simple: one person on the mat at any time. No exceptions. Not even for young children who are small enough that two of them seem fine together.
Here is why this rule matters more than any other. When two people jump simultaneously, the mat has to respond to two sets of forces at different phases. One person hits their downstroke while the other is mid-air. The mat compresses unevenly. The lighter person gets catapulted by the force generated when the heavier person lands. This is not a one-in-a-hundred scenario — it is the physics of two bodies on a spring system, and it happens predictably.
Most trampoline injuries treated in hospital emergency departments involve multiple jumpers. Studies from the British Journal of Sports Medicine have consistently identified simultaneous jumping as the highest-risk factor — higher than lack of enclosures, higher than not having supervision. Enforce the one-at-a-time rule and you remove the largest single source of risk from trampoline use.
The practical challenge is that children do not want to wait. They want their turn now, and they want to bounce together. The rule needs to be established before the first session, repeated consistently, and enforced even when it creates conflict. Parents who are strict about this rule from day one report far fewer issues than those who allow exceptions and then try to reintroduce the rule.
Enclosure nets: why they are not optional
Every trampoline in our range comes with an enclosure net fitted as standard. This is not a selling point — it is a basic safety requirement that reflects where trampoline design is now.
A trampoline mat sits 60-90cm off the ground depending on the model. Falling from that height onto grass is roughly equivalent to falling off a dining chair. Falling onto a patio or hard surface is significantly worse. Children who bounce near the edge of an open mat and go over the side land on whatever surface is below. With an enclosure net, they land against the net, which absorbs the impact and keeps them on the trampoline.
Historical injury statistics for trampolines are dominated by falls off open mats — trampolines from the 1980s and 1990s that were sold without enclosures. Modern enclosed trampolines have a substantially better safety record. The enclosure net is the single design feature that changed trampoline safety most significantly.
Our full trampoline range comes with enclosure nets included. If you have an older trampoline without an enclosure, consider whether replacement or retrofitting is feasible — using a modern garden trampoline without an enclosure is not advisable with children.
Age and supervision
The supervision requirements change as children get older, but they do not disappear entirely for younger age groups.
Under 6 years old: an adult needs to be actively watching, not just within earshot. Children this age can follow simple rules in a calm state but lose track of them when excited. An adult present and watching can spot when a child is moving toward unsafe behaviour and intervene before anything happens. Sessions should be short — 10-15 minutes — and one child only.
Ages 6 to 10: an adult nearby, able to hear and respond. At this age, children know the rules and mostly follow them. The main risk is the arrival of a friend who wants to bounce too, and the social pressure to "just let them both go on at once." Clear rules established at this age, with consistent enforcement, tend to stick. The one-jumper rule needs to be actively maintained.
Ages 10 and above: children can use a garden trampoline independently with established rules. At ten or eleven, most children are genuinely aware of what is and is not safe on a trampoline. Independent use is fine; the adult responsibility shifts to periodic checking that the trampoline is in good condition and that rules are still being followed when friends visit.
Weight limits matter
Trampoline weight limits are not suggestions. They are the engineering specification for what the frame, springs, and mat are designed to handle. Exceeding the weight limit does not mean the trampoline will fail immediately — but it means the springs are stretching beyond their designed range, the mat is flexing more than it was intended to, and the frame is taking forces it was not built for. The result is faster wear and unpredictable bounce behaviour rather than sudden catastrophic failure.
Weight limits by size, as a general guide:
- 6ft trampolines: approximately 50kg
- 8ft trampolines: approximately 75-100kg
- 10ft trampolines: approximately 100-125kg
- 12ft trampolines: approximately 125-150kg
- 14ft trampolines: approximately 150kg
- 16ft trampolines: 150kg and above
These are typical ranges — individual models vary. Always check the weight limit of the specific trampoline you are buying. If adults will occasionally use the trampoline, buy for the adult weight rather than the child's weight. A 10ft rated to 100kg suits a 40kg child perfectly but may not suit a 90kg parent.
Placement and setup
Where a trampoline is placed matters. Specific requirements:
- Level ground — a trampoline on a slope will develop uneven bounce and may shift under use
- At least 1 metre of clear space on all sides of the enclosure edge — not the trampoline frame, the enclosure edge
- Away from fences, garden walls, trees, and garden furniture — a child who goes through the enclosure net (worn, damaged, or improperly zipped) will hit whatever is nearest
- Anchor kits in exposed or windy gardens — wind can move or flip an unanchored trampoline, particularly in storms
Setting up on a patio or decking is technically possible if the surface is level, but places the hard surface immediately below the mat rather than grass. If space requires placing on hard surfaces, add extra mat padding or consider whether a grass position is possible even if less convenient. Our accessories range includes anchor kits for windy locations.
What about safety standards?
EN71 is the European safety standard that applies to garden trampolines. It covers material safety, structural requirements, enclosure specifications, spring cover padding, and the specific impact-absorption requirements for the mat and frame pad. All trampolines from Trampoline Warehouse meet EN71 compliance.
When buying any trampoline — from us or elsewhere — check that the model carries EN71 compliance marking. The standard exists because not all trampolines are built to the same specification, and the structural and safety requirements in EN71 represent the minimum that a garden trampoline should meet before being used by children.
The standard was updated in 2011 and again more recently to address enclosure specifications and mat strength requirements. Older trampolines that pre-date these updates may not meet current standards — worth bearing in mind if buying second-hand.
For guidance on choosing the right size trampoline for your family, our trampoline size guide covers size, weight limits, and garden space requirements in one place.
Frequently asked questions
Are trampolines safe for children?
Yes, with proper use. The majority of trampoline injuries come from multiple children jumping simultaneously, lack of enclosure nets, and inappropriate supervision for younger children. Modern enclosed trampolines used with the one-jumper rule are substantially safer than the older open-mat trampolines that produced most historical injury statistics.
At what age can a child use a trampoline unsupervised?
Around ten years old is a reasonable guide, provided the child knows the safety rules and has demonstrated they follow them. Under six, active adult supervision is necessary for every session. Ages six to ten, an adult nearby who can hear and respond is appropriate. The shift to independent use should be gradual, based on the specific child's behaviour rather than age alone.
What is EN71 and why does it matter?
EN71 is the European safety standard for toys and play equipment, including garden trampolines. It sets requirements for structural strength, enclosure specification, mat impact absorption, and material safety. A trampoline carrying EN71 compliance has been tested and certified to these standards. All trampolines we sell are EN71 compliant.
How often should I check my trampoline for safety?
A quick visual check before each session takes thirty seconds and catches the most common issues: enclosure zip secure, no visible tears in the net, spring cover pad in place. A more thorough check every month — springs, mat edges, frame joints — catches wear before it becomes a problem.