Side Piece

Mid-length · Fourth Surfboards, St Agnes

A deliberately short twin-fin midlength that keeps a mid's trim but pivots more like a shortboard. The size selector's volumes don't rise steadily, so check the chart with the shaper.

Type
Mid-length
Lengths
6'0–6'10
Volume
36–46.2L
Fins
twin
Fin system
FCS II, Futures or glass-on
Price
£699Custom, from

See it at Fourth Surfboards ↗Contact maker

Design from the maker

Twin-fin mini-mid for midlength trim with shortboard-style pivot.

  • Curved, egg-like outline with pulled-in nose and tail
  • Higher wide point and forward-weighted foil
  • Medium rocker with some tail kick
  • Single concave to rolled double, light vee in the nose
  • Hard tail rails softening towards the nose

Fins

Twin only. Fins not included.

Price notes

Base made-to-order list price. A ready-made 6'8 in stock was listed separately at £749.

Sizes

LengthWidthThicknessVolume
6'019 63/642 31/6437.7L
6'220 3/82 9/1636L
6'420 5/82 5/838.4L
6'620 7/82 11/1640.1L
6'821 1/82 3/443.1L
6'1021 1/22 53/6446.2L

Compare with other shapers

Length
6'7'8'
Side PieceFourth Surfboards The MakoParadise Surfboards Flying PiggyHowzi Surfboards WeemalND Surfboards Fat Boy FlyerBeach Beat Surfboards SlipperBeach Beat Surfboards SailfishCord Surfboards
Volume (litres)
30405060
Side PieceFourth Surfboards The MakoParadise Surfboards Flying PiggyHowzi Surfboards WeemalND Surfboards Fat Boy FlyerBeach Beat Surfboards SlipperBeach Beat Surfboards SailfishCord Surfboards
Width by length (inches, published sizes)
19202122 6'6'67'7'68' Side Piece · Fourth Surfboards Weemal · ND Surfboards Fat Boy Flyer · Beach Beat Surfboards Slipper · Beach Beat Surfboards Sailfish · Cord Surfboards
BoardLengthVolumeFinsFrom
Side PieceFourth Surfboards 6'0–6'10 36–46.2L twin £699
The MakoParadise Surfboards 6'4–7'6 34.5–53L twin, quad £595
Flying PiggyHowzi Surfboards 6'2–6'10 40–48L thruster, quad –
WeemalND Surfboards 6'2–7'4 40–53.5L – £519.99
Fat Boy FlyerBeach Beat Surfboards 6'6–7'8 36.1–55.4L – –
SlipperBeach Beat Surfboards 6'6–7'2 36.5–48.8L 2+1 –
SailfishCord Surfboards 6'6–7'2 36.7–49L twin keel £750

Not published

  • Size chart accuracy (6'0 listed with more volume than 6'2)
  • Construction options
  • Board weight

Sources

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

More from Fourth Surfboards

BoardLengthVolumeFinsFrom
Doofer 5'6–6'8 26.3–41.8L thruster, quad £679
Rockstar Max 5'3–6'3 24.1–40.6L thruster £679
Rockstar Neo 5'7–6'5 26–39.4L thruster £679
Freshblade DS 5'8–6'4 24.5–33.7L – £679
HP Chilli 5'8–6'6 30.3–41.8L – £679
Chilli Bean 5'4–6'10 28.2–51L thruster, quad £659
Chilli Jam 5'6–6'4 30–42.2L – £679
Chilli Wrap 5'6–6'6 29.5–45L – £679
Short Time 5'4–6'4 32–49.1L – £659
BP Shortstack 5'9–6'3 27–38.9L thruster, twin + trailer £679
BP Round 6'2–6'10 33.7–44L thruster £699
BP Pro Mid Length 6'0–6'10 32.4–44.3L thruster £699
BP Mini Mid Length 6'6–7'2 41.2–52.4L – £729
Time Piece 6'6–7'6 37.6–54.3L – £729
Hang 12 – – – £859
Charge 6'3–6'10 – – £699
Reload 2.0 archive – – – –