At 115 kg an intermediate shortboarder sits around 55 liters, a fish about 61, a midlength about 77 and a longboard about 96. Volume is the number every brand now prints on its boards: the liters of foam, which set how easily a board paddles and floats. These tables come from SurfCalc's own model, fitted to the published guides of major brands, for an average adult: 30 to 39, average fitness, surfing weekly in average waves. The calculator adjusts for your age, fitness, how often you surf, wave power and size, wetsuit and construction, and gives a ±5 % range to shop with.
| Board type | 1 Beginner | 2 Beg. / int. | 3 Intermediate | 4 Advanced | 5 Expert |
|---|---|---|---|---|---|
| Performance shortboard | 84.5 | 68.0 | 55.1 | 44.6 | 41.1 |
| Fish / hybrid / groveler | 88.7 | 72.8 | 60.6 | 49.9 | 46.0 |
| Midlength / funboard | 105.6 | 89.8 | 77.2 | 69.1 | 65.7 |
| Longboard | 122.5 | 105.5 | 96.5 | 89.1 | 90.3 |
| Soft-top | 126.7 | 105.5 | 88.2 | 73.5 | 69.8 |