At 95 kg an intermediate shortboarder sits around 46 liters, a fish about 50, a midlength about 64 and a longboard about 80. 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 | 69.8 | 56.2 | 45.5 | 36.8 | 33.9 |
| Fish / hybrid / groveler | 73.3 | 60.1 | 50.1 | 41.2 | 38.0 |
| Midlength / funboard | 87.2 | 74.2 | 63.8 | 57.1 | 54.3 |
| Longboard | 101.2 | 87.1 | 79.7 | 73.6 | 74.6 |
| Soft-top | 104.7 | 87.1 | 72.9 | 60.8 | 57.7 |