Kernel

Groveller · Whitburn Studio, Winchester

A wide, parallel, very low-rocker groveller built for planing speed in small, weak surf. Fins sit rearward and close to the rails.

Type
Groveller
Lengths
5'0–6'0
Fins
twin, quad
Build
PU, EPS or agave blank (chosen per build), high-bio-content epoxy
Level
intermediate to experienced
Price
Price not published

See it at Whitburn Studio ↗Contact maker

Design from the maker

Small, weak surf; planing speed.

  • Unusually parallel, wide outline
  • Very low rocker with slight nose flip
  • Full-length single concave
  • Fins set rearward and close to the rails

Price notes

No starting prices published; custom quote from James.

Compare with other shapers

Width by length (inches, published sizes)
1819202122 5'5'66'6'6 Rockstar Max · Fourth Surfboards
BoardLengthVolumeFinsFrom
KernelWhitburn Studio 5'0–6'0 – twin, quad –
Space HopperGulf Stream Surfboards 5'2–6'2 30.7–44.2L quad £895
Split PeaGulf Stream Surfboards 5'2–6'2 35.3–51.1L quad £895
Rockstar MaxFourth Surfboards 5'3–6'3 24.1–40.6L thruster £679
Dirty PirateHowzi Surfboards 5'3–6'1 32–50L – –
The Mini StealerParadise Surfboards 5'3–6'4 26–41L thruster £550
JesterHowzi Surfboards 5'2–5'10 28.5–39L quad, 5-fin –

Not published

  • Dimensions and volumes
  • Tail shape
  • Fin box brand
  • Price

Sources

Checked 26 Sept 2026. Specs and prices change: confirm with the maker.

More from Whitburn Studio

BoardLengthVolumeFinsFrom
Nudibranch 5'0–6'8 – twin, quad –
Eggspiracy 6'0–8'8 – single, twin, 2+1 –
Toecurler 9'0–10'3 – single –
Babushka 6'0–8'8 – single, 2+1 –