# Springfree Jumbo Square (S155) vs JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3): specs and price compared

A sourced, side-by-side comparison of the Springfree Jumbo Square (S155) (Springfree) and JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) (JumpKing) among trampolines. JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) is the cheaper of the two at $1999.

## Side by side

| Spec | Springfree Jumbo Square (S155) | JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) |
| --- | --- | --- |
| US price | $2499 | $1999 |
| Brand | Springfree | JumpKing |
| 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 |

## Key differences

- 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

## Sources

- Springfree Jumbo Square (S155): https://www.springfreetrampoline.com/products/jumbo-square-trampoline (springfreetrampoline.com, verified 2026-07-11)
- JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3): https://www.bouncytrampolines.com/products/jumpking-rectangular-trampoline-10x18-pro-jkrc1018hec3 (bouncytrampolines.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/trampolines/springfree-jumbo-square-vs-jumpking-pro-series-10x18/
Cite: Per The Front Desk Review, Springfree Jumbo Square (S155) ($2499) vs JumpKing Pro-Series 10'x18' Rectangle (JKRC1018HEC3) ($1999) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/trampolines/springfree-jumbo-square-vs-jumpking-pro-series-10x18/
License: CC BY 4.0.