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HERO™ 12ft Trampoline

4.8 out of 5 star rating
4.8 star rating593 reviews
Estimated Delivery

2–4 business day delivery

Warranty

10 year warranty

For families looking for a versatile and spacious option, the HERO™ 12ft Trampoline is an excellent premium model. Featuring a 4m diameter, it offers plenty of room for jumpers of all ages. The sturdy construction supports up to 250kg, making it ideal for a growing family. With advanced safety features including a durable safety net and padded poles, Jumpflex® ensures a secure jumping environment. This model is perfect for medium to large yards, providing endless fun and exercise for the whole family. Choose the HERO™ 12ft trampoline for the best outdoor play experience in the United Kingdom.

Real Reviews From Real Customers

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4.8 out of 5 star rating
4.8 star rating13,978 reviews
Lesley S. Verified Buyer1 August 2025
5.0 out of 5 star rating
1 reviews
Cannot fault the service, ordered late afternoon and it arrived next day.
Lesley S. Verified Buyer1 August 2025
5.0 out of 5 star rating
1 reviews
Excellent trampoline, very pleased with the quality, easy to assemble. Ordered late afternoon and it arrived next day. My grandson loves it and so do I, great for all the family. Would recommend highl...
Peter T. Verified Buyer31 July 2025
5.0 out of 5 star rating
1 reviews
Great fun for summer…
Peter T. Verified Buyer31 July 2025
5.0 out of 5 star rating
1 reviews
Great for keeping direct sun of trampoline…. .
Peter T. Verified Buyer31 July 2025
5.0 out of 5 star rating
1 reviews
Purchase was really easy online and arrived when it was supposed to,very happy….
Peter T. Verified Buyer31 July 2025
5.0 out of 5 star rating
1 reviews
Very impressed with the quality of this Trampoline, was very easy to put together and instructions were spot on. Was purchased for my granddaughter and we are very happy with the safety and strength o...
Faye N. Verified Buyer31 July 2025
5.0 out of 5 star rating
1 reviews
Amazing. So quiet. 100% recommend
Richard D. Verified Buyer30 July 2025
5.0 out of 5 star rating
1 reviews
I had an item I needed to return as it was the wrong size. Not only did they replace the item, but because the original item was slightly more expensive they didn’t charge for returning the item nor t...
Julie G. Verified Buyer29 July 2025
5.0 out of 5 star rating
1 reviews
Very good fast delivery trampoline is very sturdy would recommend buying this trampoline and sunshade for children 10 out of 10
Nick M. Verified Buyer29 July 2025
5.0 out of 5 star rating
1 reviews
Well made, no bolts, good quality and quick delivery. A very happy child! Thank you.
Sharon M. Verified Buyer27 July 2025
5.0 out of 5 star rating
1 reviews
Brilliant for windy days
Rhona L. Verified Buyer27 July 2025
5.0 out of 5 star rating
1 reviews
My daughter loves the trampoline. It is easy to put together and looks very good quality. Customer service is above average by a mile. Thank you

A new generation of Jumpflex®

The lifetime trampoline

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hero logo

Our new generation HERO™ 12 ft trampoline has been designed from the ground up with all the latest Jumpflex® innovations, bringing your family the ultimate bouncing experience + a great new look + even greater safety!

Choose Jumpflex® and play for life!

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Massive 10 year warranty

We stand for strength! Our trampolines in UK currently come with a massive 10 year warranty on the frame.

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Gigantic 250 kg weight rating

All our models feature one of the best trampoline weight ratings on the market of up to 250 kg

huge bounce icon

Huge bounce science

A high-quality trampoline frame and an innovative spring system equals a bigger, smoother bounce. Check out our reviews!

clip together trampoline frame

World's first weld-free, bolt-free trampoline

Patented FrameFusion™ technology

Our 2024 model’s patented eco-friendly design has zero bolts and no welds, meaning it takes half the assembly time of traditional trampolines.

FrameFusion™

TECHNOLOGY

Image of a trampoline.

What's more, the way our engineers have designed the trampoline, means that less nasties are required in the manufacturing process, which makes our trampolines the most eco-friendly around, removing pollutants that can impact our builders and the environment.

jumpflex trampoline assembly timelapse video

Easy & quick to assemble

Can be put together in as little as 20mins*

Our 2024 model’s patented eco-friendly design has zero bolts and no welds, making it one of the fastest trampolines in the world to assemble!

*Based on two people, assembly times may vary.

backflip on trampoline with water
jumpflex trampolines designed for safey

Designed for safety

Built to last

We’ve made our 12 ft trampolines with safety in mind! Built to global safety certification standards: ASTM & CE. Jumpflex® trampolines are recognised as the ultimate in trampoline design.


360-degree protection

SafeSeal™ technology

360 safety trampoline

Our 12 ft trampolines feature a 360-degree net safety enclosure to prevent the chance of accidents. Jumpflex® nets securely clip down to the jumping mat all the way around the trampoline. This unique SafeSeal™ system ensures that there is no possibility for kids to fall out once the trampoline door is zipped shut.

top of hero trampoline net

Soft & strong safety net

TightWeave™ technology

Our tight-weave safety nets are woven together with TightWeave™ technology, using 100% high-strength polyester, with an active UV protection additive. Incredibly durable, these are the best nets around, which is why they have the best warranty around!

Grade 6 Intertek UV Testing
6
More durable than standard nets
250%

Built to last a lifetime

6 layer anti-rust coating: Protection from mother nature

jumpflex anti-rust frame treatment video

As well as looking great in your backyard, Jumpflex® 12 ft trampolines are designed to stand the test of time. Jumpflex® metal components undergo a 6-layer rust-proofing and durability process.

All metal components are galvanised inside and out with a hard-wearing zinc coating. Visible sections are finished with a UV-resistant black powder coating. This ensures Jumpflex® trampolines will remain a property feature you'll be proud of.

space between poles trampoline safety netting

More space between you and the poles

More bouncing, less risk

With our unique patented design, the poles curve away from the trampoline, so you can go crazy! Flip, spin, twirl and do all the stuff that makes bouncing so much fun, with less risk.

kids bouncing

Massive 250 kg total weight rating!

Built for the whole family

Strong trampolines equal bigger, smoother bouncing for the whole family. Good thing our new Jumpflex® HERO™ 12 ft trampoline has an innovative dual ring frame, which makes this range of trampolines our strongest and most stable ever. These 12 ft trampolines are engineered using high-tensile steel that will never buckle or lose shape, achieved through a world leading zero-bolt, zero-weld approach.

This all means our HERO™ 12 ft trampolines can handle an incredible 250 kg load and a max individual user weight of 160 kg.

Total weight rating
250 kg
Max individual user weight
160 kg
jumpflex big bounce science

Big bounce science

Jumpflex® spring technology

Trampoline pros agree, Jumpflex® springs deliver “the most awesome bounce”. That’s why to build the best 12 ft trampoline, we’ve invested in engineering the best springs on the market. Our high-tensile extension springs give our bouncers smooth, deep bouncing and maximum airtime.

While ideal for jumpers weighing 20 kg - 100 kg, Jumpflex® trampolines have a maximum total weight rating of 250 kg!

jumpflex dual ring

DualRing™ frame

Extra strength and durability

Our 12 ft HERO™ trampoline utilises a top and bottom DualRing™ frame, with high tensile 42 mm steel tubing used for the upper ring and 38 mm high tensile steel used for the lower ring. Combined, they make our HERO™ model far stronger and more stable than other trampolines.

Dimensions / Specs

Image showing dimensions for the HERO™ 12ft Trampoline
Yard space
4.1 m diameter at widest point. 1 m recommended free space around the trampoline.
Number of springs
80
Spring length
180 mm
Total weight rating
250 kg
Frame tube diameter
42 mm
Floor to mat height
89 cm
Trampoline height
2.7 m
Box dimensions
  • Box 1 - 28.3 kg
    L: 119 cm, W: 49 cm, H: 21 cm
  • Box 2 - 21.9 kg
    L: 111 cm, W: 49 cm, H: 15 cm
  • Box 3 - 28 kg
    L: 103 cm, W: 60 cm, H: 15 cm
  • Box 4 - 26.5 kg
    L: 91 cm, W: 20.5 cm, H: 19 cm

Bring The Fun With Accessories!

Picture of Lifetime Warranty

Lifetime Warranty

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£39.95 £149
projam jumpflex trampoline basketball hoop with sofft edges

PROJAM™

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£69 £69.95
Picture of JUMPSLIDE™

JUMPSLIDE™

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£149.95
jumpflex smartshade trampoline sunshade and protective cover
Sale

SMARTSHADE™

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£12.25 £19£59.95
Picture of ANCHORKIT™ PRO

ANCHORKIT™ PRO

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£39.95
Picture of ANCHORKIT™

ANCHORKIT™

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£24.95
jumpflex aquajet trampoline sprinkler kit

AQUAJET™

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£29.95
Picture of FLEXBOARD™

FLEXBOARD™

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£119.95