Surfboard thickness affects volume, buoyancy, paddling, and control. A thicker board generally floats higher and is easier to paddle, while a thinner board allows better rail engagement. However, thickness must be considered together with board length, width, and overall shape.
Thicker vs. Thinner Surfboards
A thicker board usually provides more volume and flotation, making it easier to catch waves. This is useful for beginners and boards designed for stability. However, excessive thickness can make the rails harder to sink during turns.
A thinner board sits lower in the water and can provide better control during turns, especially when the rails are properly shaped. The trade-off is reduced flotation and potentially more effort when paddling.
Typical Surfboard Thickness by Board Type
Different board types require different thicknesses depending on their intended use.
| Board Type | Typical Thickness |
| Performance shortboard | 2¼″–2½″ (57–64 mm) |
| Fish / Groveler | 2⅛″–2¾″ (54–70 mm) |
| Mid-length | 2½″–3⅜″ (64–86 mm) |
| Funboard / Mini-mal | 2½″–3¼″ (64–83 mm) |
| Longboard | 2¾″–3½″ (70–89 mm) |
| Beginner softboard (7’–8′) | 2¾″–3¾″ (70–95 mm) |
These are general reference ranges, not fixed specifications. Actual thickness varies with board dimensions, volume, design, and target rider.
Does More Thickness Always Mean More Volume?
Not necessarily. Volume depends on length, width, thickness, and the board’s overall shape. A wider board can have more volume than a thicker but narrower one.
For example, a 6’0″ performance shortboard may be around 2½” thick, while an 8’0″ beginner softboard may be around 3½” thick. The difference reflects their different design priorities: maneuverability for the shortboard and flotation and stability for the softboard.
What We Consider in Manufacturing
When developing a new model, we consider thickness together with the target volume, rail profile, dimensions, and intended use. Simply increasing thickness does not guarantee better performance. A change in thickness can also affect how the rails engage with the water and how the board feels underfoot.The right thickness is the one that provides the required flotation and control for the board’s intended purpose
