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Bounce & Bolt

Trampolines Comparison

Springfree vs Jumpflex: Rods or Springs, 220 lb or 350 lb?

The two premium designs parents compare most. Springfree removes the springs and rigid poles; Jumpflex keeps springs, clips the net to the mat, curves the poles and prints the higher limit. Model for model.

By Mike M.Updated How we rate
Child's bare feet mid-jump on a trampoline mat in summer light
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Side by side

The picks on each side

Side by side

SpecSpringfree Jumbo Square Trampoline (S155)Jumpflex HERO 14 ft Trampoline
DesignPatented composite rods instead of springs lie beneath the jumping surface; SoftEdge mat; FlexiNet enclosureNot published
EnclosureNot published360-degree net clips down to the jumping mat all the way around (SafeSeal); self-closing entrance; 6 ft net height
PolesNot publishedPatented poles curve away from the trampoline
Weight limitTested max weight capacity 1500 lb; single jumper weight capacity 220 lbMax individual user weight 350 lb; total weight rating 550 lb
CertificationASTM F2225 and F381 named by SpringfreeBuilt to ASTM and CE safety certification standards
Size13 ft x 13 ft jumping mat; 155 sq ft; 9 ft 4 in trampoline height15.1 ft overall diameter; 12.1 ft jumping mat; 2.9 ft floor to mat; 8.9 ft total height
ClearanceSpace required 23 ft x 23 ft, including 5 ft clearance on each sideAllow 15.1 ft plus 3.3 ft of clear space all around
AnchoringGround Anchor kit sold separately (4 anchors; 8 for Jumbo models)Not published
Warranty10-year warranty on all parts of the trampoline10-year frame warranty (USA)
Figures as published by each maker (or the named retailer); each value links to its source. "Not published" means the figure isn't in our cited sources.

Construction: what is at mat height

On a Springfree, the composite rods that replace springs sit below the mat, the SoftEdge mat replaces the spring pad, and the FlexiNet is carried on flexible rods, so a jumper who leaves the mat meets fabric and flex, not steel. On a Jumpflex HERO, 88 springs at 7.1 in sit outside a net that clips to the mat edge all the way round, and the eight net poles curve outward on a dual-ring frame of 1.7 in tube. Both keep the springs out of the play area; only Springfree removes the rigid elements entirely, which is the difference between a 10 and a 9 on our enclosure metric.

Limits, clearance, warranty

Limits. Springfree: 1500 lb tested capacity, 220 lb single jumper, on every model. Jumpflex HERO: 550 lb total, 350 lb individual; FLEX: 330 lb total, 220 lb individual. A parent over 220 lb is inside the rating on a HERO and outside it on any Springfree. Clearance. Springfree specifies 23 x 23 ft for the S155 and 20 x 20 ft for the R79 (5 ft clear each side); Jumpflex asks for its 15.1 ft footprint plus 3.3 ft all round for the HERO 14, roughly 21.7 ft. Warranty. Springfree: 10 years on all parts. Jumpflex: 10 years on the HERO frame, 5 on the FLEX frame; other parts not itemized on the product page. Anchoring. Both sell anchors separately: Springfree in sets of 4 (8 for Jumbo), Jumpflex as the ANCHORKIT and ANCHORKIT PRO. Kits compared on best trampoline anchors.

Choose Springfree if / choose Jumpflex if

  • Choose Springfree if every jumper is under 220 lb and the springless construction and 10-year all-parts warranty are what you are paying for.
  • Choose Jumpflex if adults will jump, you want a fully dimensioned spec sheet, or the price tier matters.
  • Choose the FLEX 12 or R79 if the yard is 20 ft square or less; both makers publish the space they need.

The broader springless argument is on Springfree vs spring trampolines; Jumpflex against Zupapa on Zupapa vs Jumpflex.

In detail

Every contender, in full

Springfree Jumbo Square Trampoline (S155)

Pick Springfree for the springless edge

Springfree Jumbo Square Trampoline (S155)

9.5 / 10

Scored on the trampolines rubric

Rods under the mat, FlexiNet on flexible rods, 10 years on every part, ASTM F2225 and F381 named. 220 lb single jumper; anchors extra.

Published specs (tap for source)

Design:Patented composite rods instead of springs lie beneath the jumping surface; SoftEdge mat; FlexiNet enclosureWeight limit:Tested max weight capacity 1500 lb; single jumper weight capacity 220 lbSize:13 ft x 13 ft jumping mat; 155 sq ft; 9 ft 4 in trampoline heightClearance:Space required 23 ft x 23 ft, including 5 ft clearance on each sideCertification:ASTM F2225 and F381 named by SpringfreeAnchoring:Ground Anchor kit sold separately (4 anchors; 8 for Jumbo models)Warranty:10-year warranty on all parts of the trampoline

Score by criterion, out of 10

Enclosure & edge design (30%)
9.8
Anchoring provision (20%)
9.0
Rated capacity & structure (20%)
9.2
Certification & standards (15%)
9.7
Install reality (15%)
9.5

Why we picked it

  • Springs, rigid poles and the frame edge are all moved out of the jumping zone by design
  • 10-year warranty on every part, the longest all-parts coverage here
  • Mat area equivalent to a 15 ft round in a 13 x 13 footprint

Good to know

220 lb single-jumper limit is below the Jumpflex HERO and Acon 16 HD

See today's price on the Springfree Jumbo Square

#ad · Price as of November 9, 2026 · Affiliate disclosure for the link to Springfree Jumbo Square Trampoline (S155)

JumpflexNo image

Pick Jumpflex for the higher rating and lower tier

Jumpflex HERO 14 ft Trampoline

9.6 / 10

Scored on the trampolines rubric

350 lb per jumper, SafeSeal clip-down net, curved poles, 10-year frame. Anchors extra.

Published specs (tap for source)

Weight limit:Max individual user weight 350 lb; total weight rating 550 lbEnclosure:360-degree net clips down to the jumping mat all the way around (SafeSeal); self-closing entrance; 6 ft net heightPoles:Patented poles curve away from the trampolineCertification:Built to ASTM and CE safety certification standardsSprings:88 springs, 7.1 in longFrame:Dual-ring frame; 1.7 in frame tube; galvanized inside and out with UV-resistant black powder coat; zero bolts, no weldsSize:15.1 ft overall diameter; 12.1 ft jumping mat; 2.9 ft floor to mat; 8.9 ft total heightClearance:Allow 15.1 ft plus 3.3 ft of clear space all aroundWarranty:10-year frame warranty (USA)

Score by criterion, out of 10

Enclosure & edge design (30%)
9.7
Anchoring provision (20%)
9.0
Rated capacity & structure (20%)
9.8
Certification & standards (15%)
9.5
Install reality (15%)
9.5

Why we picked it

  • Separate single-jumper (350 lb) and total (550 lb) ratings published
  • Net clips to the mat around the full circle; poles curve outward
  • Every dimension a yard plan needs is published, including required clearance

Good to know

Anchor kit is a separate accessory, not in the box

See today's price on the Jumpflex HERO 14 ft

#ad · Price as of November 9, 2026 · Affiliate disclosure for the link to Jumpflex HERO 14 ft Trampoline

SpringfreeNo image

Pick the Springfree R79 for a 20 x 20 ft yard

Springfree Medium Round Trampoline (R79)

9.5 / 10

Scored on the trampolines rubric

The smallest full-size Springfree; 79 sq ft, 220 lb.

Published specs (tap for source)

Design:Composite rods beneath the mat; FlexiNetWeight limit:Tested max 1500 lb; single jumper 220 lbSize:10 ft x 10 ft mat; 79 sq ftClearance:Space required 20 ft x 20 ftWarranty:10-year warranty on all parts

Score by criterion, out of 10

Enclosure & edge design (30%)
9.8
Anchoring provision (20%)
9.0
Rated capacity & structure (20%)
9.2
Certification & standards (15%)
9.7
Install reality (15%)
9.5

Why we picked it

  • Springless edge in the smallest footprint Springfree makes
  • 10-year all-parts warranty

Good to know

Only 79 sq ft of mat

See today's price on the Springfree Medium

#ad · Price as of November 9, 2026 · Affiliate disclosure for the link to Springfree Medium Round Trampoline (R79)

Jumpflex FLEX 12 ft Trampoline

Pick the FLEX 12 as the entry Jumpflex

Jumpflex FLEX 12 ft Trampoline

9.4 / 10

Scored on the trampolines rubric

220 lb per jumper, 330 lb total, 5-year frame, same net and pole design.

Published specs (tap for source)

Weight limit:Frame supports up to 330 lb total with a maximum of 220 lb per jumperEnclosure:360-degree net clips down to the mat (SafeSeal), self-closing entrance; 6 ft net heightPoles:Poles curve away from the trampoline (200% more clearance claimed by Jumpflex)Springs:70 springs, 5.5 inSize:13.5 ft overall diameter; 10.5 ft mat; 2.9 ft to mat; 8.9 ft total heightCertification:Built to ASTM and CE standardsWarranty:5-year warranty on the FLEX frame

Score by criterion, out of 10

Enclosure & edge design (30%)
9.7
Anchoring provision (20%)
9.0
Rated capacity & structure (20%)
9.2
Certification & standards (15%)
9.5
Install reality (15%)
9.2

Why we picked it

  • Both a per-jumper and a total rating are published
  • Same SafeSeal clip-down net and curved-pole design as the HERO
  • Complete dimensions published, including the actual 10.5 ft mat

Good to know

220 lb per-jumper limit rules out most adults

$699.00Buy the Jumpflex FLEX 12 ft

#ad · Price as of November 9, 2026 · Affiliate disclosure for the link to Jumpflex FLEX 12 ft Trampoline

How we picked

Why these picks made the list

Every pick is scored from the maker's published specs, manual and warranty terms on a safety rubric we publish (net and edge design, anchoring, rated capacity, standards, install reality), and the sources behind each number are listed at the bottom of the page.

Scores are our editorial judgment of that published information. Nobody pays for placement, and an unpublished spec is never guessed upward. See every rubric and weight.

Trampolines rubric

Enclosure & edge design
30%
Anchoring provision
20%
Rated capacity & structure
20%
Certification & standards
15%
Install reality
15%

FAQ

Questions parents ask

Is Jumpflex as safe as Springfree?
Close on the rubric. Jumpflex keeps springs and steel poles but puts the net inside the springs and curves the poles; Springfree removes both. Neither prevents on-mat collisions, which CPSC and the AAP identify as the main risk.
Which has the higher weight limit?
Jumpflex HERO: 350 lb per jumper. Springfree: 220 lb per jumper on every model.
Do either come with anchors?
No. Springfree sells Ground Anchor sets; Jumpflex sells the ANCHORKIT. Order one with the trampoline.
Which needs more yard?
Springfree S155: 23 x 23 ft. Jumpflex HERO 14: about 21.7 ft across including its 3.3 ft clearance. See what size trampoline.

Related

Keep reading

Update log

What changed

  • First published.

Receipts

Sources

  1. 1.CPSC Publication 085, Trampoline Safety (PDF; fetched Sep 22, 2026)
  2. 2.Springfree Trampoline: Jumbo Square S155 specifications (checked Sep 22, 2026)
  3. 3.Springfree Trampoline: Medium Round R79 specifications (checked Sep 22, 2026)
  4. 4.Jumpflex USA: HERO 14ft Trampoline specs (checked Sep 22, 2026)
  5. 5.Jumpflex USA: FLEX 12ft Trampoline specs (checked Sep 22, 2026)

Capacities, materials, anchoring provisions and warranty terms come from the maker's own listings and manuals (or a named retailer's listing where the maker doesn't publish them). Safety guidance is linked to CPSC, the AAP, ASTM or the study it came from. Buy buttons open the live Amazon listing, so you always see today's price. Read the full method.