Vuly Thunder 2 Pro vs Springfree Jumbo Square
Both keep hard springs away from the landing area, but they do it differently. The Thunder 2 Pro uses Vuly's leaf-spring system in a 163-inch round; the Springfree Jumbo Square removes springs entirely with flexible rods below a hidden frame, in a 13x13ft square.
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Quick verdict
Pick the Thunder 2 Pro for a round shape, a 330 lb weight limit, and the lower price. Pick the Springfree Jumbo Square for the fully springless build and even corner-to-corner space, if you are under 220 lb per jumper.
Full spec comparison
| Specification | Vuly Thunder 2 Pro | Springfree Jumbo Square |
|---|---|---|
| Brand | Vuly | Springfree |
| Model / line | Vuly Thunder 2 Pro (L) | Springfree Jumbo Square (13x13ft) |
| Size | L | 13x13ft |
| Shape | Round | Square |
| Install type | above ground | above ground |
| Safety net | yes | yes |
| Overall footprint | 13.6ft × 13.6ft | 13ft × 13ft |
| Jumping mat size | 124.0" diameter | — |
| Spring system | Leaf springs | Flexible composite rods (no springs) |
| Spring count | — | 0 |
| Max single-user weight | 330 lb | 220 lb |
| Frame material | — | Galvanized and powder-coated steel |
| Mat material | — | UV-stabilized polypropylene (SoftEdge) |
| Net material | — | UV-stabilized FlexiNet |
| US standard | Unknown | Yes (ASTM F2225; ASTM F381) |
| Warranty | Frame 10 yr; mat 5 yr; springs 1 yr; net 1 yr | Frame 10 yr; mat 10 yr; springs —; net 10 yr |
| Price | $1,649 | $2,499 |
What matters most
The Thunder 2 Pro is about $1,649; the Springfree Jumbo Square is about $2,499, so the springless square costs noticeably more. Weight is the deciding spec for many families: the Thunder 2 Pro allows 330 lb for a single jumper against 220 lb on the Springfree. Shape matters too, since the square gives more usable room in the corners while the round centers jumpers naturally. Springfree backs the frame, mat, and rods for 10 years; the Thunder 2 Pro covers the frame for 10 and the mat for 5, with 1 year on the leaf springs.
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