Picture of HERO™ 12ft Trampoline
Picture of HERO™ 12ft Trampoline
jumpflex hero trampoline ladder included
mum and daughter playing on jumpflex trampoline
jumpflex trampoline colour play

HERO™ 12ft Trampoline

4.9 out of 5 star rating
4.9 star rating1,114 reviews

For families looking for a versatile and spacious option, the HERO™ 12 ft Trampoline is an excellent premium model. Featuring a 12 ft diameter, it offers plenty of room for jumpers of all ages. The sturdy construction supports up to 550 lb, 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™ 12 ft trampoline for the best outdoor play experience in the US.

* Free shipping exclusions may apply. For more information, see the Shipping Policy

Real Reviews From Real Customers

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4.8 out of 5 star rating
4.8 star rating18,572 reviews
Dana S. Verified BuyerDecember 31, 2025
5.0 out of 5 star rating
1 reviews
Will definitely be recommending this company to anyone looking for a trampoline!
Dana S. Verified BuyerDecember 31, 2025
5.0 out of 5 star rating
1 reviews
Super fun accessory to go with the trampoline. Adds an extra hand to play!
Dana S. Verified BuyerDecember 31, 2025
5.0 out of 5 star rating
1 reviews
This kit is a must have! It comes with everything you need, including an attachment for your drill. Assuring that the trampoline isn't going anywhere!
Miguel T. Verified BuyerDecember 31, 2025
5.0 out of 5 star rating
1 reviews
Good quality and easy to install.
Mark P. Verified BuyerDecember 31, 2025
5.0 out of 5 star rating
1 reviews
Instructions were clear & easy to follow!!! Thank you!!!! Put it together in the dark with the help of an 11 year old in 3. 5 hrs.
Carol A. Verified BuyerDecember 30, 2025
5.0 out of 5 star rating
1 reviews
The grandkids love the trampoline. The instructions were clear and easy to follow. Customer service is excellent!
Carol A. Verified BuyerDecember 30, 2025
5.0 out of 5 star rating
1 reviews
My grandkids love the trampoline! It was easy to put together. The directions were clear and easy to follow. I called twice to ask questions before I purchased, and the customer service was excellent!
Erin S. Verified BuyerDecember 30, 2025
5.0 out of 5 star rating
1 reviews
Kids loved their Christmas gift. Set up was not difficult and took about an hour and a half. Quality seems great, very durable.
Alicia B. Verified BuyerDecember 30, 2025
5.0 out of 5 star rating
1 reviews
Great quality trampoline! Sturdy. Love that art of the springs are covered. We purchased the slide and basketball hoop… both great additions! The slide especially helps with “traffic” going in and off...
Natalie H. Verified BuyerDecember 30, 2025
5.0 out of 5 star rating
1 reviews
Such a great Christmas present!
Natalie H. Verified BuyerDecember 30, 2025
5.0 out of 5 star rating
1 reviews
So easy to assemble. Kids LOVE!
Samantha J. Verified BuyerDecember 30, 2025
5.0 out of 5 star rating
1 reviews
Ordered for my son for Christmas. Unfortunately we were missing an important rail and couldn’t finish putting it together before Christmas. But, the company made up for it by sending the extra part pl...

A new generation of Jumpflex®

The lifetime trampoline

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!

strong icon

Massive 10 year warranty

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

weight rating icon

Gigantic 550 lb weight rating

All our models feature one of the best trampoline weight ratings on the market of up to 550 lb.

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

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

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 recognized 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.

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 galvanized 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 550 lb 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 550 lb load and a max individual user weight of 350 lb.

Total weight rating
550 lb
Max individual user weight
350 lb
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 40 lb - 220 lb, Jumpflex® trampolines have a maximum total weight rating of 550 lb!

jumpflex dual ring

DualRing™ frame

Extra strength and durability

Our 12 ft HERO™ trampoline utilizes a top and bottom DualRing™ frame, with high tensile 1.7 in steel tubing used for the upper ring and 1.5 in 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
13.5 ft diameter at widest point. 3 ft recommended free space around the trampoline.
Jumping mat diameter
10.8 ft
Number of springs
80
Spring length
7.1 in
Total weight rating
550 lb
Frame tube diameter
1.7 in
Floor to mat height
2.9 ft
Net height
6 ft
Total trampoline height
8.9 ft
Box dimensions
  • Box 1 - 76 lb
    L: 47 in, W: 22 in, H: 9 in
  • Box 2 - 73 lb
    L: 44 in, W: 18 in, H: 7 in
  • Box 3 - 74 lb
    L: 41 in, W: 25 in, H: 7 in

Bring The Fun With Accessories!

Picture of Lifetime Warranty

Lifetime Warranty

star rating0 reviews
$69.95 $300$99.95 $399
projam jumpflex trampoline basketball hoop with sofft edges

PROJAM™

star rating0 reviews
$99.95
Picture of JUMPSLIDE™

JUMPSLIDE™

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$199.95
jumpflex smartshade trampoline sunshade and protective cover

SMARTSHADE™

star rating0 reviews
$49.95 $99.95
Picture of ANCHORKIT™ PRO

ANCHORKIT™ PRO

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$49.95
Picture of ANCHORKIT™

ANCHORKIT™

star rating0 reviews
$39.95
Picture of SCOOTER

SCOOTER

star rating0 reviews
$129.95
jumpflex aquajet trampoline sprinkler kit

AQUAJET™

star rating0 reviews
$34.95
Flexboard trampoline EVA foam trick board

FLEXBOARD™

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$149.95