FLEX™ 12ft Trampoline
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- Estimated Delivery
3–5 business day delivery
- Warranty
5 year warranty
The FLEX™ 12 ft Trampoline is an excellent all-rounder for jumpers of all ages. Featuring a 4m diameter and a 3.2m jumping mat, it fits well in medium-sized yards. With a robust construction that supports up to 150kg with a maximum of 100kg per jumper, this model is perfect for young families. Its versatile design and strong build make it a perfect 12 ft trampoline for versatile fun in the United Kingdom, combining safety, great value and enjoyment for everyone.
Ladder included (valued at £39)
* RRP as at 11 November 2026
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The perfect starter
The trampoline for a growing family
Our FLEX™ 12 ft trampoline has been built with young families in mind, delivering a great bouncing experience + full safety features + a great low price! Choose Jumpflex® and play for life!
More space between you and the poles
200% more clearance dramatically softens any pole contact
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.
Built to last
Protection from Mother Nature
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.
150 kg total weight rating
Built for a growing family
Well-built trampolines equal bigger, smoother bouncing for your family. Good thing our new Jumpflex® FLEX™ 12 ft trampoline features our zero-bolt, zero-weld approach, that not only looks fantastic, but also improves frame strength and stability. This trampoline easily caters for a young family, handling up to a 150 kg load!
- Total weight rating
- 150 kg
- Max individual user weight
- 100 kg
Designed for safety
Built to last
We’ve made our 12 ft FLEX™ 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
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 with self-closing entrance ensures that there is no possibility for kids to fall out of the trampoline enclosure accidentally.
A tight weave nylon safety net that’ll last
TightWeave™ technology
Our 12 ft trampolines are built to last, with nets made from 100% high-strength nylon and woven using the TightWeave™ system. A protective UV additive protects the nets against sun damage, allowing your new 12 ft trampoline to weather all seasons.
- Grade 6 Intertek UV Testing
- 6
- More durable than standard nets
- 250%
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™
T E C H N O L O G Y
Whatsmore, 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 trampoline builders and the environment.
5 Year Warranty
Play for life
Jumpflex® currently offers an awesome 5 year warranty on the FLEX™ frame, so years of carefree bouncing are guaranteed. We also have an excellent customer support team to assist you with any questions or concerns about your new 12 ft trampoline. So choose Jumpflex® and play for life!
Dimensions / Specs
- Total weight rating
- 150 kg
- Max. individual user weight The maximum recommended load for one active jumper. This maintains a safe clearance under the mat and accounts for jumping forces.
- 100 kg
- Overall diameter (at widest point) Includes the outward curvature of the net poles.
- 4 m
- Safety net height
- 1.8 m
- Jumping mat diameter Most importantThe actual jumping surface, not the total footprint. Watch for brands that advertise a big overall diameter but a small mat.
- 3.2 m
- Floor to mat height
- 88 cm
- Total trampoline height Full height including the safety enclosure — check clearance under branches or eaves.
- 2.7 m
- Yard space required
- Please allow a total of 4 m in diameter to account for the outward curvature of the safety net poles, plus an additional 1 m of clear space around the entire trampoline for safe use and installation.
- Number of springs
- 70
- Spring length
- 140 mm
- Frame tube diameter
- 42 mm
- Box dimensions
- Box 1 - 24.8 kg
L: 119 cm, W: 45 cm, H: 14 cm - Box 2 - 24.5 kg
L: 119 cm, W: 45 cm, H: 22 cm - Box 3 - 25.75 kg
L: 110 cm, W: 45 cm, H: 17 cm
- Box 1 - 24.8 kg
- Dimensions disclaimer
- The measurements on this page are intended to help you check the trampoline fits your yard. Building something permanent? Contact us first and we’ll confirm exact figures for your model.
