Springfree
Springfree Jumbo Square (S155)
$2499
Best Trampolines · head-to-head
Springfree Jumbo Square (S155) vs JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3)
A sourced, side-by-side comparison. JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) is cheaper at $1999. Every spec and price links to its source.
JumpKing
JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3)
$1999Cheaper
Which is better: the Springfree Jumbo Square (S155) or JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3)?
The Springfree Jumbo Square (S155) wins 1 of the 1 specs we compare head to head; the other wins 0. The JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) is the cheaper at $1999. Get the Springfree Jumbo Square (S155) for the stronger spec sheet, the JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) to spend less.
See Springfree Jumbo Square (S155) on Amazon See JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Springfree Jumbo Square (S155) | JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) |
|---|---|---|
| US price | $2499 | $1999 |
| Brand | Springfree | JumpKing |
| Released | — | — |
| Shape | square | rectangular |
| Frame size (ft) | 13 | 10x18 |
| Jumping area sq (ft) | 155 | 128.5 |
| Spring system | fiberglass-rod | coil-spring |
| Spring count | — | 128 |
| Spring length (in) | — | 8.5 |
| Max user weight (lb) | 220 | 260 |
| Total weight capacity (lb) | 1500 | — |
| Galvanized frame | Yes | Yes |
| Warranty years | 10 | 5 |
| Astm certified | Yes | Yes |
Sources — Springfree Jumbo Square (S155): springfreetrampoline.com (verified 2026-07-11). JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3): bouncytrampolines.com (verified 2026-07-11).
What's the difference between the Springfree Jumbo Square (S155) and JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3)?
Where the two actually differ on the specs we track (6 of 11). Matching specs are omitted.
- Shape: Springfree Jumbo Square (S155) square vs JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) rectangular
- Frame size (ft): Springfree Jumbo Square (S155) 13 vs JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) 10x18
- Jumping area sq (ft): Springfree Jumbo Square (S155) 155 vs JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) 128.5
- Spring system: Springfree Jumbo Square (S155) fiberglass-rod vs JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) coil-spring
- Max user weight (lb): Springfree Jumbo Square (S155) 220 vs JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) 260
- Warranty years: Springfree Jumbo Square (S155) 10 vs JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) 5